Routing Table Report 04:00 +10GMT Thu 09 Feb, 2006
Analysis Summary
----------------
BGP routing table entries examined: 181553
Prefixes after maximum aggregation: 100915
Unique aggregates announced to Internet: 88092
Total ASes present in the Internet Routing Table: 21460
Origin-only ASes present in the Internet Routing Table: 18645
Origin ASes announcing only one prefix: 8857
Transit ASes present in the Internet Routing Table: 2815
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1489710496
Equivalent to 88 /8s, 203 /16s and 45 /24s
Percentage of available address space announced: 40.2
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 88461
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37940
Total APNIC prefixes after maximum aggregation: 16044
Prefixes being announced from the APNIC address blocks: 35700
Unique aggregates announced from the APNIC address blocks: 17479
APNIC Region origin ASes present in the Internet Routing Table: 2464
APNIC Region origin ASes announcing only one prefix: 686
APNIC Region transit ASes present in the Internet Routing Table: 381
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 212193504
Equivalent to 12 /8s, 165 /16s and 208 /24s
Percentage of available APNIC address space announced: 66.3
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: 95726
Total ARIN prefixes after maximum aggregation: 56504
Prefixes being announced from the ARIN address blocks: 75112
Unique aggregates announced from the ARIN address blocks: 28367
ARIN Region origin ASes present in the Internet Routing Table: 10496
ARIN Region origin ASes announcing only one prefix: 3932
ARIN Region transit ASes present in the Internet Routing Table: 976
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 286974976
Equivalent to 17 /8s, 26 /16s and 228 /24s
Percentage of available ARIN address space announced: 71.3
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, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 35685
Total RIPE prefixes after maximum aggregation: 24037
Prefixes being announced from the RIPE address blocks: 32713
Unique aggregates announced from the RIPE address blocks: 22050
RIPE Region origin ASes present in the Internet Routing Table: 7617
RIPE Region origin ASes announcing only one prefix: 3978
RIPE Region transit ASes present in the Internet Routing Table: 1272
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 231778688
Equivalent to 13 /8s, 208 /16s and 169 /24s
Percentage of available RIPE address space announced: 69.1
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, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10322
Total LACNIC prefixes after maximum aggregation: 3456
Prefixes being announced from the LACNIC address blocks: 8518
Unique aggregates announced from the LACNIC address blocks: 4961
LACNIC Region origin ASes present in the Internet Routing Table: 669
LACNIC Region origin ASes announcing only one prefix: 218
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 25218048
Equivalent to 1 /8s, 128 /16s and 204 /24s
Percentage of available LACNIC address space announced: 37.6
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: 1874
Total AfriNIC prefixes after maximum aggregation: 874
Prefixes being announced from the AfriNIC address blocks: 1233
Unique aggregates announced from the AfriNIC address blocks: 871
AfriNIC Region origin ASes present in the Internet Routing Table: 146
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3114496
Equivalent to 0 /8s, 47 /16s and 134 /24s
Percentage of available AfriNIC address space announced: 9.3
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 984 6480 204 CHINANET-BACKBONE
9583 850 109 16 Sify Limited
4755 804 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 709 3927 301 Korea Telecom (KIX)
1221 668 1428 475 Telstra Pty Ltd
9498 521 211 73 BHARTI BT INTERNET LTD.
7545 516 108 70 TPG Internet Pty Ltd
17676 480 6949 104 Softbank BB Corp.
17488 451 27 7 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 366 75 157 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
18101 325 68 26 Reliance Infocom Ltd Internet
17974 319 77 38 PT TELEKOMUNIKASI INDONESIA
17557 311 25 161 Pakistan Telecom
7474 297 211 228 SingTel Optus Pty Ltd
4780 282 226 16 Digital United Inc.
9837 273 78 169 Powertel Ltd
9800 259 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6263 956 AT&T WorldNet Services
4323 1211 720 238 Time Warner Telecom
721 1021 21954 309 DLA Systems Automation Center
174 995 5788 940 Cogent Communications
19029 979 152 115 New Edge Networks
6197 978 451 507 BellSouth Network Solutions,
701 950 8064 792 UUNET Technologies, Inc.
18566 903 272 8 Covad Communications
2386 890 505 665 AT&T Data Communications Serv
1239 855 2792 615 Sprint
6198 695 455 240 BellSouth Network Solutions,
209 682 3606 537 Qwest
20115 663 565 354 Charter Communications
11492 628 81 12 Cable One
22773 622 1479 38 Cox Communications, Inc.
19262 620 1769 150 Verizon Global Networks
855 573 244 64 Canadian Research Network
852 572 1092 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
3602 521 127 106 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 590 1955 466 UUNET - Commercial IP service
3301 305 1071 290 TeliaNet Sweden
3352 301 1484 33 Ibernet, Internet Access Netw
3320 280 3477 234 Deutsche Telekom AG
8220 275 474 269 COLT Telecommunications
680 241 2025 238 DFN-IP service G-WiN
3246 228 487 219 Song Networks
8708 222 274 205 Romania Data Systems S.A.
6746 220 85 192 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 177 840 125 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 173 37 13 Bulgarian Telecommunication C
3215 171 1406 84 France Telecom Transpac
24863 168 38 9 LINKdotNET AS number
3300 165 171 94 AUCS Communications Services
5400 165 328 135 BT Ignite European Backbone
6830 160 669 33 UPC Distribution Services
12479 158 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 569 1048 218 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 305 110 78 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
14117 183 11 6 Telefonica del Sur S.A.
13999 169 84 10 Mega Cable S.A. de C.V.
7303 155 73 19 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 123 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 117 148 77 AVANTEL, S.A.
21826 116 15 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 88 80 Global One Communicaoes Ltda
18822 99 8 10 TELEFONICA MANQUEHUE
25620 99 6 3 COTAS LTDA
7315 96 6 3 Grupo Rey Moreno
11311 95 8 23 Sinectis S.A.
14522 95 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 819 234 The Internet Solution
8452 159 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 102 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 68 71 10 Itissalat Al-MAGHRIB
20928 58 16 2 Noor Advanced Technologies AS
24835 57 50 7 RAYA Telecom - Egypt
5713 38 166 34 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 21 AS Number for Telecom Algeria
12455 28 6 5 Jambonet Autonomous system
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 21 14 18 SONATEL-AS Autonomous System
21280 21 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1211 973 Time Warner Telecom
18566 903 895 Covad Communications
19029 979 864 New Edge Networks
9583 850 834 Sify Limited
4134 984 780 CHINANET-BACKBONE
4755 804 740 Videsh Sanchar Nigam Ltd. Aut
721 1021 712 DLA Systems Automation Center
11492 628 616 Cable One
22773 622 584 Cox Communications, Inc.
855 573 509 Canadian Research Network
19916 563 509 OLM LLC
5668 517 493 CenturyTel Internet Holdings,
6197 978 471 BellSouth Network Solutions,
19262 620 470 Verizon Global Networks
6198 695 455 BellSouth Network Solutions,
9498 521 448 BHARTI BT INTERNET LTD.
7545 516 446 TPG Internet Pty Ltd
17488 451 444 Hathway IP Over Cable Interne
7757 461 442 AT&T Broadband
3602 521 415 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
36381 UNALLOCATED 12.147.156.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.147.157.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.147.158.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.147.159.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.244.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.245.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.246.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.247.0/24 7018 AT&T WorldNet Servic
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
65518 PRIVATE 211.144.192.0/19 24421 *
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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 /10:8 /11:22 /12:87
/13:198 /14:345 /15:690 /16:8702 /17:3003 /18:5062
/19:11274 /20:12493 /21:10856 /22:13892 /23:15111 /24:98817
/25:315 /26:266 /27:204 /28:61 /29:25 /30:54
/31:3 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
19029 901 979 New Edge Networks
18566 886 903 Covad Communications
6197 783 978 BellSouth Network Solutions,
7018 742 1464 AT&T WorldNet Services
9583 669 850 Sify Limited
2386 620 890 AT&T Data Communications Serv
11492 620 628 Cable One
4323 583 1211 Time Warner Telecom
6198 560 695 BellSouth Network Solutions,
19916 557 563 OLM LLC
4766 513 709 Korea Telecom (KIX)
855 445 573 Canadian Research Network
7757 443 461 AT&T Broadband
7011 415 483 Citizens Utilities
5668 403 517 CenturyTel Internet Holdings,
702 375 590 UUNET - Commercial IP service
1239 370 855 Sprint
15270 341 370 PaeTec.net -a division of Pae
6517 339 365 Yipes Communications, Inc.
22773 325 622 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:42 12:1640 13:1 15:12 16:3
17:3 18:4 20:44 24:859 25:1 30:2
32:66 38:195 40:53 44:3 47:3 52:4
55:1 56:3 57:33 58:117 59:165 60:179
61:795 62:768 63:1891 64:3066 65:2261 66:3073
67:575 68:671 69:1422 70:309 71:51 72:627
73:23 74:4 80:748 81:583 82:505 83:360
84:346 85:425 86:307 87:166 88:20 89:19
124:11 125:200 128:150 129:170 130:103 131:315
132:33 133:7 134:146 135:46 136:169 137:60
138:183 139:85 140:383 141:133 142:414 143:144
144:224 145:39 146:309 147:134 148:321 149:186
150:114 151:74 152:61 153:101 154:6 155:186
156:95 157:121 158:158 159:179 160:88 161:68
162:220 163:141 164:174 165:203 166:144 167:236
168:470 169:139 170:314 171:12 190:30 192:5768
193:3359 194:2498 195:1763 196:748 198:3899 199:3260
200:4221 201:598 202:6452 203:6776 204:3887 205:2091
206:2433 207:2922 208:1990 209:3840 210:1915 211:802
212:1289 213:1465 214:327 215:40 216:4081 217:1148
218:238 219:135 220:634 221:339 222:149
End of report