This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 04:00 +10GMT Sat 27 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 189144
Prefixes after maximum aggregation: 104309
Unique aggregates announced to Internet: 92654
Total ASes present in the Internet Routing Table: 22317
Origin-only ASes present in the Internet Routing Table: 19409
Origin ASes announcing only one prefix: 9291
Transit ASes present in the Internet Routing Table: 2908
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 18
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 14
Unregistered ASNs in the Routing Table: 12
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1539919976
Equivalent to 91 /8s, 201 /16s and 80 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93724
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40065
Total APNIC prefixes after maximum aggregation: 16729
Prefixes being announced from the APNIC address blocks: 37758
Unique aggregates announced from the APNIC address blocks: 18447
APNIC Region origin ASes present in the Internet Routing Table: 2582
APNIC Region origin ASes announcing only one prefix: 744
APNIC Region transit ASes present in the Internet Routing Table: 394
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 226969056
Equivalent to 13 /8s, 135 /16s and 69 /24s
Percentage of available APNIC address space announced: 71.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97552
Total ARIN prefixes after maximum aggregation: 57717
Prefixes being announced from the ARIN address blocks: 71556
Unique aggregates announced from the ARIN address blocks: 26470
ARIN Region origin ASes present in the Internet Routing Table: 10740
ARIN Region origin ASes announcing only one prefix: 4041
ARIN Region transit ASes present in the Internet Routing Table: 994
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292813056
Equivalent to 17 /8s, 115 /16s and 249 /24s
Percentage of available ARIN address space announced: 75.9
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37960
Total RIPE prefixes after maximum aggregation: 25293
Prefixes being announced from the RIPE address blocks: 34974
Unique aggregates announced from the RIPE address blocks: 23530
RIPE Region origin ASes present in the Internet Routing Table: 8089
RIPE Region origin ASes announcing only one prefix: 4233
RIPE Region transit ASes present in the Internet Routing Table: 1328
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 250469508
Equivalent to 14 /8s, 237 /16s and 220 /24s
Percentage of available RIPE address space announced: 78.6
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11397
Total LACNIC prefixes after maximum aggregation: 3681
Prefixes being announced from the LACNIC address blocks: 9488
Unique aggregates announced from the LACNIC address blocks: 5540
LACNIC Region origin ASes present in the Internet Routing Table: 685
LACNIC Region origin ASes announcing only one prefix: 224
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 27176192
Equivalent to 1 /8s, 158 /16s and 173 /24s
Percentage of available LACNIC address space announced: 40.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2166
Total AfriNIC prefixes after maximum aggregation: 889
Prefixes being announced from the AfriNIC address blocks: 1489
Unique aggregates announced from the AfriNIC address blocks: 953
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 49
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4070912
Equivalent to 0 /8s, 62 /16s and 30 /24s
Percentage of available AfriNIC address space announced: 12.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1192 7096 218 CHINANET-BACKBONE
9583 910 109 16 Sify Limited
4755 858 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 688 4435 304 Korea Telecom (KIX)
1221 614 1668 472 Telstra Pty Ltd
9498 564 211 67 BHARTI BT INTERNET LTD.
7545 533 124 70 TPG Internet Pty Ltd
17488 514 32 9 Hathway IP Over Cable Interne
17676 486 7029 110 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 411 85 24 Reliance Infocom Ltd Internet
4802 380 80 176 Wantree Development
17557 365 29 168 Pakistan Telecom
17849 352 22 114 Telecommunications Technology
17974 344 118 17 PT TELEKOMUNIKASI INDONESIA
2907 335 1733 312 SINET Japan
9929 325 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 267 78 160 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6217 961 AT&T WorldNet Services
4323 1293 736 254 Time Warner Telecom
6197 1008 623 474 BellSouth Network Solutions,
721 1001 21977 306 DLA Systems Automation Center
174 966 5788 901 Cogent Communications
19029 948 151 108 New Edge Networks
18566 940 272 8 Covad Communications
701 937 6765 773 UUNET Technologies, Inc.
2386 887 523 682 AT&T Data Communications Serv
1239 844 2805 598 Sprint
19262 706 2106 171 Verizon Global Networks
20115 704 614 379 Charter Communications
209 703 3685 548 Qwest
22773 660 1741 40 Cox Communications, Inc.
7011 636 218 414 Citizens Utilities
11492 611 87 21 Cable One
852 581 1084 382 Telus Advanced Communications
6478 578 1544 342 AT&T Worldnet Services
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 576 1952 454 UUNET - Commercial IP service
3301 308 1072 294 TeliaNet Sweden
3352 308 1644 30 Ibernet, Internet Access Netw
8220 293 472 266 COLT Telecommunications
3320 287 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
6746 237 89 211 Dynamic Network Technologies,
3246 235 504 225 Song Networks
8708 218 276 202 Romania Data Systems S.A.
24863 213 42 10 LINKdotNET AS number
8551 200 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 193 740 168 SWIPnet Swedish IP Network
8764 192 65 32 LIETUVOS-TELEKOMAS Autonomous
30890 190 17 67 SC Kappa Invexim SRL
8866 181 37 16 Bulgarian Telecommunication C
5400 172 348 141 BT Ignite European Backbone
6830 172 781 36 UPC Distribution Services
786 170 1762 170 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 702 1082 226 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 330 20 8 NSS, S.A.
11172 325 110 86 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 201 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 170 80 25 Telecom Argentina Stet-France
6503 134 150 81 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 129 8 21 Telconet
14259 119 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
19429 107 59 45 E.T.B.
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
14522 101 16 9 SatNet S.A.
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 803 233 The Internet Solution
8452 167 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
15475 54 84 4 Nile Online
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 30 7 20 AS Number for Telecom Algeria
12455 27 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
33766 20 2 1 Nyala Communications Pty Ltd
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1293 1039 Time Warner Telecom
4134 1192 974 CHINANET-BACKBONE
18566 940 932 Covad Communications
9583 910 894 Sify Limited
19029 948 840 New Edge Networks
4755 858 791 Videsh Sanchar Nigam Ltd. Aut
721 1001 695 DLA Systems Automation Center
22773 660 620 Cox Communications, Inc.
11492 611 590 Cable One
19262 706 535 Verizon Global Networks
6197 1008 534 BellSouth Network Solutions,
19916 563 509 OLM LLC
5668 530 507 CenturyTel Internet Holdings,
17488 514 505 Hathway IP Over Cable Interne
9498 564 497 BHARTI BT INTERNET LTD.
855 553 489 Canadian Research Network
8151 702 476 UniNet S.A. de C.V.
7545 533 463 TPG Internet Pty Ltd
3602 538 428 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36814 UNALLOCATED 65.69.244.0/22 22773 Cox Communications,
36817 UNALLOCATED 66.112.176.0/20 6539 GT Group Telecom Ser
36720 UNALLOCATED 66.242.112.0/20 15227 FiberNet of West Vir
36863 UNALLOCATED 67.98.233.0/24 6395 Broadwing Communicat
39943 UNALLOCATED 69.48.147.0/24 22691 ISPnet, Inc.
36814 UNALLOCATED 70.169.204.0/24 22773 Cox Communications,
36235 UNALLOCATED 71.40.60.0/24 7132 SBC Internet Service
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24481 UNALLOCATED 202.79.16.0/21 17494 Telecom Operator & I
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
36835 UNALLOCATED 206.169.118.0/23 4323 Time Warner Telecom
36235 UNALLOCATED 209.30.100.0/24 7132 SBC Internet Service
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:9 /11:28 /12:91
/13:200 /14:360 /15:706 /16:8825 /17:3232 /18:5337
/19:11653 /20:13159 /21:11464 /22:14649 /23:15823 /24:102528
/25:367 /26:271 /27:191 /28:65 /29:70 /30:49
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 923 940 Covad Communications
19029 879 948 New Edge Networks
6197 796 1008 BellSouth Network Solutions,
7018 788 1496 AT&T WorldNet Services
9583 739 910 Sify Limited
4323 636 1293 Time Warner Telecom
2386 610 887 AT&T Data Communications Serv
11492 602 611 Cable One
19916 557 563 OLM LLC
7011 545 636 Citizens Utilities
4766 498 688 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 413 530 CenturyTel Internet Holdings,
15270 401 432 PaeTec.net -a division of Pae
1239 389 844 Sprint
6517 362 393 Yipes Communications, Inc.
702 358 576 UUNET - Commercial IP service
6198 356 509 BellSouth Network Solutions,
17849 352 352 Telecommunications Technology
33588 348 366 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1625 13:1 15:14 16:3
17:3 18:4 20:43 24:731 25:1 30:2
32:58 38:221 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:176 59:201
60:163 61:855 62:762 63:1920 64:3186 65:2265
66:3023 67:611 68:668 69:1519 70:364 71:87
72:727 73:23 74:38 80:782 81:644 82:614
83:381 84:392 85:579 86:397 87:339 88:122
89:215 124:287 125:409 128:152 129:190 130:117
131:316 132:33 133:8 134:158 135:48 136:178
137:75 138:208 139:69 140:469 141:130 142:381
143:165 144:223 145:39 146:329 147:136 148:308
149:187 150:114 151:90 152:70 153:107 154:5
155:202 156:100 157:149 158:167 159:176 160:89
161:76 162:245 163:147 164:178 165:207 166:165
167:244 168:492 169:128 170:337 171:14 183:1
190:73 192:5765 193:3371 194:2631 195:1888 196:847
198:3907 199:3217 200:4445 201:946 202:6651 203:6915
204:3805 205:2065 206:2413 207:2888 208:2121 209:3780
210:1977 211:676 212:1244 213:1474 214:358 215:40
216:4131 217:1157 218:286 219:202 220:710 221:358
222:162
End of report
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 04:00 +10GMT Sat 20 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188610
Prefixes after maximum aggregation: 104284
Unique aggregates announced to Internet: 92582
Total ASes present in the Internet Routing Table: 22230
Origin-only ASes present in the Internet Routing Table: 19345
Origin ASes announcing only one prefix: 9245
Transit ASes present in the Internet Routing Table: 2885
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1538347176
Equivalent to 91 /8s, 177 /16s and 80 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93291
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39800
Total APNIC prefixes after maximum aggregation: 16690
Prefixes being announced from the APNIC address blocks: 37504
Unique aggregates announced from the APNIC address blocks: 18371
APNIC Region origin ASes present in the Internet Routing Table: 2561
APNIC Region origin ASes announcing only one prefix: 733
APNIC Region transit ASes present in the Internet Routing Table: 386
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 225925856
Equivalent to 13 /8s, 119 /16s and 90 /24s
Percentage of available APNIC address space announced: 70.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97594
Total ARIN prefixes after maximum aggregation: 57782
Prefixes being announced from the ARIN address blocks: 71589
Unique aggregates announced from the ARIN address blocks: 26499
ARIN Region origin ASes present in the Internet Routing Table: 10721
ARIN Region origin ASes announcing only one prefix: 4019
ARIN Region transit ASes present in the Internet Routing Table: 988
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292645120
Equivalent to 17 /8s, 113 /16s and 105 /24s
Percentage of available ARIN address space announced: 75.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37713
Total RIPE prefixes after maximum aggregation: 25238
Prefixes being announced from the RIPE address blocks: 34722
Unique aggregates announced from the RIPE address blocks: 23499
RIPE Region origin ASes present in the Internet Routing Table: 8039
RIPE Region origin ASes announcing only one prefix: 4217
RIPE Region transit ASes present in the Internet Routing Table: 1319
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249979076
Equivalent to 14 /8s, 230 /16s and 96 /24s
Percentage of available RIPE address space announced: 78.4
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11361
Total LACNIC prefixes after maximum aggregation: 3680
Prefixes being announced from the LACNIC address blocks: 9450
Unique aggregates announced from the LACNIC address blocks: 5513
LACNIC Region origin ASes present in the Internet Routing Table: 689
LACNIC Region origin ASes announcing only one prefix: 227
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 26970112
Equivalent to 1 /8s, 155 /16s and 136 /24s
Percentage of available LACNIC address space announced: 40.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2134
Total AfriNIC prefixes after maximum aggregation: 894
Prefixes being announced from the AfriNIC address blocks: 1472
Unique aggregates announced from the AfriNIC address blocks: 970
AfriNIC Region origin ASes present in the Internet Routing Table: 156
AfriNIC Region origin ASes announcing only one prefix: 49
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4080640
Equivalent to 0 /8s, 62 /16s and 68 /24s
Percentage of available AfriNIC address space announced: 12.2
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1146 7080 217 CHINANET-BACKBONE
9583 903 109 16 Sify Limited
4755 897 259 72 Videsh Sanchar Nigam Ltd. Aut
4766 685 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 557 211 66 BHARTI BT INTERNET LTD.
7545 529 124 70 TPG Internet Pty Ltd
17488 518 32 9 Hathway IP Over Cable Interne
17676 485 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 380 80 173 Wantree Development
18101 359 85 23 Reliance Infocom Ltd Internet
17557 358 28 165 Pakistan Telecom
17849 351 22 113 Telecommunications Technology
17974 338 135 19 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
9929 326 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 266 78 159 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6225 965 AT&T WorldNet Services
4323 1293 734 254 Time Warner Telecom
6197 1006 622 472 BellSouth Network Solutions,
721 994 21945 303 DLA Systems Automation Center
174 953 5786 897 Cogent Communications
19029 949 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 932 6780 769 UUNET Technologies, Inc.
2386 877 522 675 AT&T Data Communications Serv
1239 845 2805 599 Sprint
209 708 3689 553 Qwest
19262 702 2101 184 Verizon Global Networks
20115 694 609 375 Charter Communications
22773 663 1745 45 Cox Communications, Inc.
7011 635 218 413 Citizens Utilities
11492 621 87 21 Cable One
852 582 1084 383 Telus Advanced Communications
6478 571 1523 337 AT&T Worldnet Services
19916 563 49 54 OLM LLC
855 545 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 578 1952 456 UUNET - Commercial IP service
3301 307 1071 293 TeliaNet Sweden
3352 297 1644 30 Ibernet, Internet Access Netw
8220 294 472 267 COLT Telecommunications
3320 287 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 235 504 225 Song Networks
6746 232 89 208 Dynamic Network Technologies,
8708 219 276 202 Romania Data Systems S.A.
24863 212 42 10 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 190 740 165 SWIPnet Swedish IP Network
30890 183 16 68 SC Kappa Invexim SRL
8866 179 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 348 140 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
3300 167 171 96 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 706 1083 226 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 330 20 8 NSS, S.A.
11172 324 110 87 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 169 79 24 Telecom Argentina Stet-France
11556 132 80 4 Cable-Wireless Panama
21826 132 16 23 INTERCABLE
6503 129 149 77 AVANTEL, S.A.
19169 129 8 21 Telconet
14259 116 10 12 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
19429 103 58 44 E.T.B.
18822 98 7 9 TELEFONICA MANQUEHUE
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 803 233 The Internet Solution
8452 168 60 7 TEDATA
6713 137 135 11 Itissalat Al-MAGHRIB
2018 130 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
15475 53 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 27 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1293 1039 Time Warner Telecom
18566 939 931 Covad Communications
4134 1146 929 CHINANET-BACKBONE
9583 903 887 Sify Limited
19029 949 840 New Edge Networks
4755 897 825 Videsh Sanchar Nigam Ltd. Aut
721 994 691 DLA Systems Automation Center
22773 663 618 Cox Communications, Inc.
11492 621 600 Cable One
6197 1006 534 BellSouth Network Solutions,
19262 702 518 Verizon Global Networks
19916 563 509 OLM LLC
17488 518 509 Hathway IP Over Cable Interne
5668 525 502 CenturyTel Internet Holdings,
9498 557 491 BHARTI BT INTERNET LTD.
855 545 481 Canadian Research Network
8151 706 480 UniNet S.A. de C.V.
7545 529 459 TPG Internet Pty Ltd
3602 539 429 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:9 /11:27 /12:91
/13:200 /14:361 /15:703 /16:8809 /17:3213 /18:5312
/19:11653 /20:13118 /21:11365 /22:14645 /23:15812 /24:102224
/25:379 /26:250 /27:192 /28:64 /29:70 /30:50
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 922 939 Covad Communications
19029 880 949 New Edge Networks
6197 795 1006 BellSouth Network Solutions,
7018 793 1505 AT&T WorldNet Services
9583 732 903 Sify Limited
4323 637 1293 Time Warner Telecom
11492 612 621 Cable One
2386 605 877 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 544 635 Citizens Utilities
4766 495 685 Korea Telecom (KIX)
855 426 545 Canadian Research Network
5668 408 525 CenturyTel Internet Holdings,
15270 396 427 PaeTec.net -a division of Pae
1239 387 845 Sprint
702 359 578 UUNET - Commercial IP service
6517 357 388 Yipes Communications, Inc.
6198 356 508 BellSouth Network Solutions,
17849 351 351 Telecommunications Technology
8151 349 706 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:42 12:1630 13:1 15:14 16:3
17:3 18:4 20:43 24:737 25:1 30:2
32:58 38:216 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:153 59:189
60:181 61:861 62:759 63:1931 64:3185 65:2259
66:3011 67:609 68:675 69:1512 70:361 71:85
72:713 73:23 74:36 80:775 81:646 82:600
83:398 84:389 85:533 86:395 87:353 88:90
89:196 124:279 125:407 128:154 129:190 130:109
131:317 132:33 133:8 134:159 135:46 136:178
137:75 138:207 139:68 140:468 141:136 142:380
143:165 144:224 145:39 146:330 147:136 148:331
149:186 150:114 151:90 152:68 153:107 154:6
155:202 156:100 157:149 158:166 159:168 160:87
161:76 162:247 163:147 164:180 165:203 166:166
167:242 168:489 169:128 170:335 171:14 183:1
190:72 192:5761 193:3365 194:2619 195:1836 196:846
198:3911 199:3217 200:4430 201:945 202:6636 203:6871
204:3894 205:2072 206:2410 207:2879 208:2088 209:3782
210:1957 211:691 212:1231 213:1474 214:363 215:41
216:4144 217:1145 218:273 219:199 220:659 221:362
222:162
End of report
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 04:00 +10GMT Sat 13 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187926
Prefixes after maximum aggregation: 103847
Unique aggregates announced to Internet: 92133
Total ASes present in the Internet Routing Table: 22144
Origin-only ASes present in the Internet Routing Table: 19260
Origin ASes announcing only one prefix: 9194
Transit ASes present in the Internet Routing Table: 2884
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1537532840
Equivalent to 91 /8s, 164 /16s and 227 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92673
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39467
Total APNIC prefixes after maximum aggregation: 16505
Prefixes being announced from the APNIC address blocks: 37191
Unique aggregates announced from the APNIC address blocks: 18298
APNIC Region origin ASes present in the Internet Routing Table: 2551
APNIC Region origin ASes announcing only one prefix: 723
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225571808
Equivalent to 13 /8s, 113 /16s and 243 /24s
Percentage of available APNIC address space announced: 70.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97394
Total ARIN prefixes after maximum aggregation: 57662
Prefixes being announced from the ARIN address blocks: 71480
Unique aggregates announced from the ARIN address blocks: 26470
ARIN Region origin ASes present in the Internet Routing Table: 10699
ARIN Region origin ASes announcing only one prefix: 4012
ARIN Region transit ASes present in the Internet Routing Table: 989
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292694272
Equivalent to 17 /8s, 114 /16s and 41 /24s
Percentage of available ARIN address space announced: 75.9
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37578
Total RIPE prefixes after maximum aggregation: 25126
Prefixes being announced from the RIPE address blocks: 34591
Unique aggregates announced from the RIPE address blocks: 23239
RIPE Region origin ASes present in the Internet Routing Table: 7989
RIPE Region origin ASes announcing only one prefix: 4186
RIPE Region transit ASes present in the Internet Routing Table: 1317
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249447620
Equivalent to 14 /8s, 222 /16s and 68 /24s
Percentage of available RIPE address space announced: 78.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11350
Total LACNIC prefixes after maximum aggregation: 3662
Prefixes being announced from the LACNIC address blocks: 9429
Unique aggregates announced from the LACNIC address blocks: 5479
LACNIC Region origin ASes present in the Internet Routing Table: 684
LACNIC Region origin ASes announcing only one prefix: 224
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 26940672
Equivalent to 1 /8s, 155 /16s and 21 /24s
Percentage of available LACNIC address space announced: 40.1
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2131
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1469
Unique aggregates announced from the AfriNIC address blocks: 956
AfriNIC Region origin ASes present in the Internet Routing Table: 156
AfriNIC Region origin ASes announcing only one prefix: 49
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4072960
Equivalent to 0 /8s, 62 /16s and 38 /24s
Percentage of available AfriNIC address space announced: 12.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1133 7079 216 CHINANET-BACKBONE
4755 909 259 73 Videsh Sanchar Nigam Ltd. Aut
9583 900 109 16 Sify Limited
4766 683 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 531 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 487 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 384 81 175 Wantree Development
17849 347 22 111 Telecommunications Technology
18101 343 85 23 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 329 28 158 Pakistan Telecom
9929 325 221 58 China Netcom Corp.
17974 310 133 16 PT TELEKOMUNIKASI INDONESIA
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 266 78 159 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1516 6228 968 AT&T WorldNet Services
4323 1292 734 256 Time Warner Telecom
6197 1007 620 473 BellSouth Network Solutions,
721 995 21945 304 DLA Systems Automation Center
174 957 5787 902 Cogent Communications
19029 950 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 933 8011 774 UUNET Technologies, Inc.
2386 873 521 673 AT&T Data Communications Serv
1239 847 2805 599 Sprint
209 707 3563 555 Qwest
19262 699 2104 165 Verizon Global Networks
20115 692 606 373 Charter Communications
22773 660 1745 45 Cox Communications, Inc.
7011 634 218 412 Citizens Utilities
11492 630 86 23 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 542 244 64 Canadian Research Network
3602 537 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 578 1952 454 UUNET - Commercial IP service
3301 307 1071 293 TeliaNet Sweden
3352 296 1628 30 Ibernet, Internet Access Netw
8220 294 474 267 COLT Telecommunications
3320 286 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 234 504 224 Song Networks
6746 230 89 206 Dynamic Network Technologies,
8708 217 275 200 Romania Data Systems S.A.
24863 209 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 198 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 192 742 167 SWIPnet Swedish IP Network
8866 180 37 16 Bulgarian Telecommunication C
6830 175 765 35 UPC Distribution Services
30890 175 16 63 SC Kappa Invexim SRL
786 171 1778 171 The JANET IP Service
5400 170 347 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 708 1083 222 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
11172 324 110 84 Servicios Alestra S.A de C.V
16814 318 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 164 77 21 Telecom Argentina Stet-France
11556 132 80 4 Cable-Wireless Panama
21826 132 16 21 INTERCABLE
6503 129 149 78 AVANTEL, S.A.
19169 125 8 27 Telconet
14259 116 10 12 GTD Internet S.A.
23216 112 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
18822 98 7 9 TELEFONICA MANQUEHUE
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 168 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 53 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 28 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1292 1036 Time Warner Telecom
18566 939 931 Covad Communications
4134 1133 917 CHINANET-BACKBONE
9583 900 884 Sify Limited
19029 950 841 New Edge Networks
4755 909 836 Videsh Sanchar Nigam Ltd. Aut
721 995 691 DLA Systems Automation Center
22773 660 615 Cox Communications, Inc.
11492 630 607 Cable One
6197 1007 534 BellSouth Network Solutions,
19262 699 534 Verizon Global Networks
19916 563 509 OLM LLC
5668 531 508 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
8151 708 486 UniNet S.A. de C.V.
855 542 478 Canadian Research Network
7545 531 461 TPG Internet Pty Ltd
3602 537 428 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
37890 UNALLOCATED 202.179.160.0/20 17930 Japan Digital Serve
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
36366 UNALLOCATED 216.130.247.0/24 174 Cogent Communication
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:9 /11:28 /12:90
/13:202 /14:361 /15:706 /16:8815 /17:3200 /18:5296
/19:11633 /20:13071 /21:11325 /22:14552 /23:15646 /24:101883
/25:387 /26:267 /27:214 /28:64 /29:70 /30:49
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 922 939 Covad Communications
19029 881 950 New Edge Networks
7018 801 1516 AT&T WorldNet Services
6197 796 1007 BellSouth Network Solutions,
9583 728 900 Sify Limited
4323 634 1292 Time Warner Telecom
11492 621 630 Cable One
2386 597 873 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 543 634 Citizens Utilities
4766 493 683 Korea Telecom (KIX)
855 416 542 Canadian Research Network
5668 413 531 CenturyTel Internet Holdings,
15270 394 425 PaeTec.net -a division of Pae
1239 385 847 Sprint
702 359 578 UUNET - Commercial IP service
6198 357 508 BellSouth Network Solutions,
6517 357 387 Yipes Communications, Inc.
8151 351 708 UniNet S.A. de C.V.
17849 347 347 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1627 13:1 15:12 16:3
17:3 18:4 20:43 24:739 25:1 30:2
32:59 38:213 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:149 59:192
60:181 61:853 62:762 63:1926 64:3171 65:2254
66:3002 67:608 68:657 69:1490 70:328 71:82
72:702 73:23 74:34 80:773 81:630 82:602
83:391 84:386 85:527 86:393 87:331 88:84
89:185 124:273 125:383 128:159 129:187 130:114
131:311 132:33 133:8 134:159 135:46 136:178
137:75 138:198 139:70 140:468 141:136 142:373
143:164 144:227 145:39 146:326 147:136 148:331
149:186 150:114 151:85 152:68 153:107 154:6
155:198 156:98 157:145 158:161 159:171 160:88
161:75 162:261 163:146 164:180 165:213 166:163
167:246 168:488 169:128 170:336 171:14 183:1
190:72 192:5751 193:3381 194:2613 195:1828 196:845
198:3900 199:3229 200:4453 201:934 202:6611 203:6860
204:3893 205:2089 206:2401 207:2948 208:2060 209:3788
210:1912 211:682 212:1198 213:1468 214:357 215:41
216:4147 217:1157 218:272 219:193 220:654 221:358
222:147
End of report
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 04:00 +10GMT Sat 06 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187455
Prefixes after maximum aggregation: 103616
Unique aggregates announced to Internet: 91884
Total ASes present in the Internet Routing Table: 22087
Origin-only ASes present in the Internet Routing Table: 19218
Origin ASes announcing only one prefix: 9153
Transit ASes present in the Internet Routing Table: 2869
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 23
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 28
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1531319456
Equivalent to 91 /8s, 70 /16s and 20 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92349
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39523
Total APNIC prefixes after maximum aggregation: 16521
Prefixes being announced from the APNIC address blocks: 37242
Unique aggregates announced from the APNIC address blocks: 18267
APNIC Region origin ASes present in the Internet Routing Table: 2543
APNIC Region origin ASes announcing only one prefix: 715
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225017824
Equivalent to 13 /8s, 105 /16s and 127 /24s
Percentage of available APNIC address space announced: 70.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97040
Total ARIN prefixes after maximum aggregation: 57517
Prefixes being announced from the ARIN address blocks: 71278
Unique aggregates announced from the ARIN address blocks: 26403
ARIN Region origin ASes present in the Internet Routing Table: 10690
ARIN Region origin ASes announcing only one prefix: 4009
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 290145792
Equivalent to 17 /8s, 75 /16s and 70 /24s
Percentage of available ARIN address space announced: 75.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37490
Total RIPE prefixes after maximum aggregation: 25049
Prefixes being announced from the RIPE address blocks: 34506
Unique aggregates announced from the RIPE address blocks: 23143
RIPE Region origin ASes present in the Internet Routing Table: 7951
RIPE Region origin ASes announcing only one prefix: 4162
RIPE Region transit ASes present in the Internet Routing Table: 1306
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247766464
Equivalent to 14 /8s, 196 /16s and 157 /24s
Percentage of available RIPE address space announced: 77.7
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11278
Total LACNIC prefixes after maximum aggregation: 3636
Prefixes being announced from the LACNIC address blocks: 9368
Unique aggregates announced from the LACNIC address blocks: 5436
LACNIC Region origin ASes present in the Internet Routing Table: 683
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 26824960
Equivalent to 1 /8s, 153 /16s and 81 /24s
Percentage of available LACNIC address space announced: 40.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2119
Total AfriNIC prefixes after maximum aggregation: 893
Prefixes being announced from the AfriNIC address blocks: 1463
Unique aggregates announced from the AfriNIC address blocks: 953
AfriNIC Region origin ASes present in the Internet Routing Table: 154
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4066816
Equivalent to 0 /8s, 62 /16s and 14 /24s
Percentage of available AfriNIC address space announced: 12.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1129 7088 221 CHINANET-BACKBONE
4755 913 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 900 109 16 Sify Limited
4766 676 4435 303 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 530 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 486 7029 108 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 384 81 175 Wantree Development
17849 347 22 113 Telecommunications Technology
18101 338 85 24 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 329 28 158 Pakistan Telecom
9929 324 221 57 China Netcom Corp.
17974 312 120 29 PT TELEKOMUNIKASI INDONESIA
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 265 78 158 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1508 6256 967 AT&T WorldNet Services
4323 1292 733 253 Time Warner Telecom
6197 1007 618 472 BellSouth Network Solutions,
721 1001 21929 303 DLA Systems Automation Center
174 961 5787 907 Cogent Communications
19029 951 151 111 New Edge Networks
18566 937 272 8 Covad Communications
701 923 8009 765 UUNET Technologies, Inc.
2386 877 522 676 AT&T Data Communications Serv
1239 848 2805 600 Sprint
209 709 3595 555 Qwest
19262 695 2089 165 Verizon Global Networks
20115 688 601 369 Charter Communications
22773 658 1745 45 Cox Communications, Inc.
7011 633 217 413 Citizens Utilities
11492 631 87 21 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 549 244 63 Canadian Research Network
3602 537 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 580 1951 456 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 306 1071 292 TeliaNet Sweden
8220 290 474 268 COLT Telecommunications
3320 286 3989 239 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 233 504 223 Song Networks
6746 227 89 203 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3269 198 2134 72 TELECOM ITALIA
3215 196 1662 93 France Telecom Transpac
1257 195 742 169 SWIPnet Swedish IP Network
8866 179 37 16 Bulgarian Telecommunication C
6830 175 765 35 UPC Distribution Services
786 171 1778 171 The JANET IP Service
5400 170 363 139 BT Ignite European Backbone
9121 170 931 27 TTnet Autonomous System
30890 170 15 63 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 700 1067 227 UniNet S.A. de C.V.
22047 409 158 11 VTR PUNTO NET S.A.
11172 324 110 84 Servicios Alestra S.A de C.V
16814 317 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 163 76 20 Telecom Argentina Stet-France
21826 138 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 129 149 78 AVANTEL, S.A.
19169 127 8 20 Telconet
14259 115 10 12 GTD Internet S.A.
23216 110 21 9 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14522 100 13 7 SatNet S.A.
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 170 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 55 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 28 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1292 1039 Time Warner Telecom
18566 937 929 Covad Communications
4134 1129 908 CHINANET-BACKBONE
9583 900 884 Sify Limited
4755 913 842 Videsh Sanchar Nigam Ltd. Aut
19029 951 840 New Edge Networks
721 1001 698 DLA Systems Automation Center
22773 658 613 Cox Communications, Inc.
11492 631 610 Cable One
6197 1007 535 BellSouth Network Solutions,
19262 695 530 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 509 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 549 486 Canadian Research Network
8151 700 473 UniNet S.A. de C.V.
7545 530 460 TPG Internet Pty Ltd
3602 537 428 Sprint Canada, Inc.
22047 409 398 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36656 UNALLOCATED 64.18.154.0/24 19318 Albany International
36656 UNALLOCATED 64.20.54.0/24 19318 Albany International
36656 UNALLOCATED 64.20.55.0/24 19318 Albany International
36656 UNALLOCATED 64.20.57.0/24 19318 Albany International
36656 UNALLOCATED 64.20.58.0/24 19318 Albany International
36656 UNALLOCATED 64.20.59.0/24 19318 Albany International
36656 UNALLOCATED 64.20.60.0/24 19318 Albany International
36656 UNALLOCATED 64.20.61.0/24 19318 Albany International
36656 UNALLOCATED 64.20.62.0/24 19318 Albany International
36727 UNALLOCATED 74.128.0.0/15 3356 Level 3 Communicatio
36727 UNALLOCATED 74.130.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.131.0.0/16 1239 Sprint
36727 UNALLOCATED 74.132.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.0.0/17 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.128.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.134.0.0/15 1239 Sprint
36727 UNALLOCATED 74.136.0.0/16 1239 Sprint
36727 UNALLOCATED 74.137.0.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.64.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.80.0/20 1239 Sprint
36727 UNALLOCATED 74.137.96.0/20 1239 Sprint
36727 UNALLOCATED 74.137.112.0/20 1239 Sprint
36727 UNALLOCATED 74.137.128.0/17 3356 Level 3 Communicatio
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
223.1.1.0/24 22724 PUNTONET S.A.
223.1.2.0/24 22724 PUNTONET S.A.
223.1.3.0/24 22724 PUNTONET S.A.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:9 /11:28 /12:89
/13:199 /14:361 /15:706 /16:8796 /17:3201 /18:5278
/19:11597 /20:13106 /21:11313 /22:14494 /23:15593 /24:101607
/25:380 /26:266 /27:209 /28:61 /29:70 /30:35
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 920 937 Covad Communications
19029 882 951 New Edge Networks
6197 796 1007 BellSouth Network Solutions,
7018 795 1508 AT&T WorldNet Services
9583 729 900 Sify Limited
4323 636 1292 Time Warner Telecom
11492 622 631 Cable One
2386 597 877 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 542 633 Citizens Utilities
4766 486 676 Korea Telecom (KIX)
855 424 549 Canadian Research Network
5668 413 532 CenturyTel Internet Holdings,
15270 388 419 PaeTec.net -a division of Pae
1239 385 848 Sprint
702 359 580 UUNET - Commercial IP service
6198 356 507 BellSouth Network Solutions,
6517 356 386 Yipes Communications, Inc.
17849 347 347 Telecommunications Technology
8151 345 700 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:43 12:1634 13:1 15:12 16:3
17:3 18:4 20:43 24:740 25:1 30:2
32:59 38:211 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:152 59:188
60:181 61:844 62:764 63:1924 64:3180 65:2203
66:2993 67:600 68:659 69:1484 70:328 71:80
72:688 73:23 74:32 80:797 81:631 82:599
83:385 84:380 85:528 86:390 87:325 88:80
89:172 124:265 125:379 128:172 129:182 130:109
131:318 132:28 133:8 134:158 135:46 136:179
137:71 138:197 139:68 140:465 141:136 142:382
143:163 144:225 145:43 146:325 147:135 148:330
149:187 150:116 151:80 152:64 153:106 154:6
155:196 156:98 157:143 158:162 159:171 160:87
161:72 162:259 163:146 164:180 165:194 166:163
167:244 168:483 169:129 170:332 171:13 183:1
190:59 192:5735 193:3365 194:2600 195:1838 196:844
198:3900 199:3225 200:4433 201:922 202:6599 203:6887
204:3887 205:2080 206:2403 207:2939 208:2077 209:3802
210:1915 211:684 212:1188 213:1477 214:313 215:41
216:4117 217:1172 218:275 219:184 220:655 221:358
222:149 223:3
End of report