Routing Table Report 04:00 +10GMT Wed 21 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191051
Prefixes after maximum aggregation: 105020
Unique aggregates announced to Internet: 93284
Total ASes present in the Internet Routing Table: 22486
Origin-only ASes present in the Internet Routing Table: 19565
Origin ASes announcing only one prefix: 9387
Transit ASes present in the Internet Routing Table: 2921
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1535268584
Equivalent to 91 /8s, 130 /16s and 86 /24s
Percentage of available address space announced: 41.4
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94794
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40820
Total APNIC prefixes after maximum aggregation: 16888
Prefixes being announced from the APNIC address blocks: 38554
Unique aggregates announced from the APNIC address blocks: 18391
APNIC Region origin ASes present in the Internet Routing Table: 2618
APNIC Region origin ASes announcing only one prefix: 755
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 233522272
Equivalent to 13 /8s, 235 /16s and 68 /24s
Percentage of available APNIC address space announced: 73.0
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: 98228
Total ARIN prefixes after maximum aggregation: 57980
Prefixes being announced from the ARIN address blocks: 72082
Unique aggregates announced from the ARIN address blocks: 26891
ARIN Region origin ASes present in the Internet Routing Table: 10780
ARIN Region origin ASes announcing only one prefix: 4067
ARIN Region transit ASes present in the Internet Routing Table: 983
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 294208768
Equivalent to 17 /8s, 137 /16s and 69 /24s
Percentage of available ARIN address space announced: 76.2
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, 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: 38189
Total RIPE prefixes after maximum aggregation: 25527
Prefixes being announced from the RIPE address blocks: 35249
Unique aggregates announced from the RIPE address blocks: 23744
RIPE Region origin ASes present in the Internet Routing Table: 8171
RIPE Region origin ASes announcing only one prefix: 4290
RIPE Region transit ASes present in the Internet Routing Table: 1357
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 254176644
Equivalent to 15 /8s, 38 /16s and 109 /24s
Percentage of available RIPE address space announced: 79.7
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
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: 11542
Total LACNIC prefixes after maximum aggregation: 3726
Prefixes being announced from the LACNIC address blocks: 9699
Unique aggregates announced from the LACNIC address blocks: 5544
LACNIC Region origin ASes present in the Internet Routing Table: 698
LACNIC Region origin ASes announcing only one prefix: 231
LACNIC Region transit ASes present in the Internet Routing Table: 130
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27695104
Equivalent to 1 /8s, 166 /16s and 152 /24s
Percentage of available LACNIC address space announced: 41.3
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: 2269
Total AfriNIC prefixes after maximum aggregation: 899
Prefixes being announced from the AfriNIC address blocks: 1521
Unique aggregates announced from the AfriNIC address blocks: 963
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 44
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: 11
Number of AfriNIC addresses announced to Internet: 4128768
Equivalent to 0 /8s, 63 /16s and 0 /24s
Percentage of available AfriNIC address space announced: 12.3
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 1235 7255 227 CHINANET-BACKBONE
4755 934 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 906 109 16 Sify Limited
4766 688 4435 302 Korea Telecom (KIX)
9498 664 211 68 BHARTI BT INTERNET LTD.
1221 613 1668 471 Telstra Pty Ltd
7545 546 124 70 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 488 7061 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 414 85 24 Reliance Infocom Ltd Internet
17557 397 31 177 Pakistan Telecom
17974 384 129 14 PT TELEKOMUNIKASI INDONESIA
4802 382 81 169 Wantree Development
9929 340 255 61 China Netcom Corp.
2907 335 1733 311 SINET Japan
17849 303 23 103 Telecommunications Technology
7474 300 211 229 SingTel Optus Pty Ltd
4837 286 3061 126 chinanet IDC center beijing n
9800 276 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1480 6261 953 AT&T WorldNet Services
4323 1318 744 262 Time Warner Telecom
721 1015 21998 314 DLA Systems Automation Center
6197 1011 630 475 BellSouth Network Solutions,
174 964 5787 901 Cogent Communications
19029 945 151 108 New Edge Networks
18566 943 272 8 Covad Communications
701 942 6753 778 UUNET Technologies, Inc.
2386 912 560 705 AT&T Data Communications Serv
1239 847 2788 600 Sprint
20115 713 617 381 Charter Communications
19262 710 2105 183 Verizon Global Networks
209 708 3687 550 Qwest
22773 666 1741 40 Cox Communications, Inc.
7011 648 217 412 Citizens Utilities
11492 633 87 23 Cable One
852 583 1084 382 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 64 Canadian Research Network
5668 529 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 570 1951 450 UUNET - Commercial IP service
3301 314 1327 299 TeliaNet Sweden
3352 306 1643 30 Ibernet, Internet Access Netw
3320 289 3989 242 Deutsche Telekom AG
8220 275 470 263 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 236 89 211 Dynamic Network Technologies,
3246 234 498 224 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 215 275 201 Romania Data Systems S.A.
8551 201 198 24 Bezeq International
3215 199 1688 94 France Telecom Transpac
3269 199 2181 71 TELECOM ITALIA
30890 195 17 72 SC Kappa Invexim SRL
1257 193 741 165 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 171 1778 171 The JANET IP Service
3300 168 171 98 AUCS Communications Services
9121 160 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 709 1099 222 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 350 110 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 175 81 25 Telecom Argentina Stet-France
6503 135 151 81 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 127 8 25 Telconet
14259 119 10 15 GTD Internet S.A.
19429 118 64 41 E.T.B.
14522 115 18 9 SatNet S.A.
23216 114 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
7738 101 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 167 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 124 8 15 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
15475 115 84 4 Nile Online
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 59 16 2 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
12455 25 6 3 Jambonet Autonomous system
16637 24 14 22 Johnnic e-Ventures
23889 23 8 11 MAURITIUS TELECOM
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 22 4 4 Swift Global Kenya Ltd.Is an
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1318 1056 Time Warner Telecom
4134 1235 1008 CHINANET-BACKBONE
18566 943 935 Covad Communications
9583 906 890 Sify Limited
4755 934 860 Videsh Sanchar Nigam Ltd. Aut
19029 945 837 New Edge Networks
721 1015 701 DLA Systems Automation Center
22773 666 626 Cox Communications, Inc.
11492 633 610 Cable One
9498 664 596 BHARTI BT INTERNET LTD.
6197 1011 536 BellSouth Network Solutions,
19262 710 527 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 529 506 CenturyTel Internet Holdings,
8151 709 487 UniNet S.A. de C.V.
855 550 486 Canadian Research Network
7545 546 476 TPG Internet Pty Ltd
3602 526 422 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64920 PRIVATE 60.23.240.0/20 4837 chinanet IDC center
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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 /8:17 /9:9 /10:10 /11:28 /12:93
/13:201 /14:362 /15:709 /16:8855 /17:3260 /18:5383
/19:11751 /20:13305 /21:11623 /22:14858 /23:15945 /24:103559
/25:385 /26:289 /27:179 /28:65 /29:74 /30:51
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 926 943 Covad Communications
19029 876 945 New Edge Networks
6197 794 1011 BellSouth Network Solutions,
7018 785 1480 AT&T WorldNet Services
9583 736 906 Sify Limited
4323 642 1318 Time Warner Telecom
2386 631 912 AT&T Data Communications Serv
11492 624 633 Cable One
7011 557 648 Citizens Utilities
19916 557 563 OLM LLC
4766 500 688 Korea Telecom (KIX)
855 424 550 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 406 437 PaeTec.net -a division of Pae
1239 391 847 Sprint
9498 371 664 BHARTI BT INTERNET LTD.
4755 367 934 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
702 355 570 UUNET - Commercial IP service
6198 353 510 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:43 12:1615 13:1 15:16 16:3
17:3 18:4 20:41 24:763 25:1 32:58
38:231 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:25 58:185 59:231 60:185
61:856 62:820 63:1887 64:3184 65:2186 66:3122
67:618 68:667 69:1533 70:397 71:82 72:775
74:45 80:787 81:650 82:597 83:422 84:388
85:554 86:386 87:365 88:108 89:265 121:1
122:2 123:1 124:280 125:478 128:158 129:188
130:118 131:316 132:33 133:8 134:159 135:48
136:178 137:81 138:206 139:56 140:469 141:134
142:380 143:165 144:223 145:40 146:319 147:137
148:318 149:188 150:113 151:92 152:67 153:106
154:5 155:204 156:170 157:146 158:169 159:172
160:91 161:77 162:244 163:153 164:180 165:211
166:171 167:246 168:489 169:128 170:349 171:14
183:1 190:78 192:5736 193:3358 194:2634 195:1923
196:856 198:3960 199:3225 200:4467 201:1008 202:6675
203:6993 204:3901 205:2047 206:2424 207:2908 208:2125
209:3778 210:1989 211:696 212:1263 213:1454 214:361
215:41 216:4239 217:1163 218:294 219:232 220:720
221:359 222:188
End of report