Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Nov 24 18:02:33 UTC 2006
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 at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 25 Nov, 2006
Analysis Summary
----------------
BGP routing table entries examined: 204725
Prefixes after maximum aggregation: 110922
Unique aggregates announced to Internet: 99440
Total ASes present in the Internet Routing Table: 23764
Origin-only ASes present in the Internet Routing Table: 20720
Origin ASes announcing only one prefix: 9995
Transit ASes present in the Internet Routing Table: 3044
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36728) 27
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 8
Number of addresses announced to Internet: 1640986796
Equivalent to 97 /8s, 207 /16s and 120 /24s
Percentage of available address space announced: 44.3
Percentage of allocated address space announced: 62.8
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 104033
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 45291
Total APNIC prefixes after maximum aggregation: 18408
Prefixes being announced from the APNIC address blocks: 42852
Unique aggregates announced from the APNIC address blocks: 18850
APNIC Region origin ASes present in the Internet Routing Table: 2772
APNIC Region origin ASes announcing only one prefix: 779
APNIC Region transit ASes present in the Internet Routing Table: 411
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 270228320
Equivalent to 16 /8s, 27 /16s and 91 /24s
Percentage of available APNIC address space announced: 84.5
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: 101595
Total ARIN prefixes after maximum aggregation: 60080
Prefixes being announced from the ARIN address blocks: 74852
Unique aggregates announced from the ARIN address blocks: 28417
ARIN Region origin ASes present in the Internet Routing Table: 11180
ARIN Region origin ASes announcing only one prefix: 4263
ARIN Region transit ASes present in the Internet Routing Table: 1028
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 310956928
Equivalent to 18 /8s, 136 /16s and 211 /24s
Percentage of available ARIN address space announced: 68.6
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 41995
Total RIPE prefixes after maximum aggregation: 27533
Prefixes being announced from the RIPE address blocks: 38892
Unique aggregates announced from the RIPE address blocks: 25856
RIPE Region origin ASes present in the Internet Routing Table: 8815
RIPE Region origin ASes announcing only one prefix: 4660
RIPE Region transit ASes present in the Internet Routing Table: 1412
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 278168708
Equivalent to 16 /8s, 148 /16s and 132 /24s
Percentage of available RIPE address space announced: 75.4
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
40960-41983
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13394
Total LACNIC prefixes after maximum aggregation: 3964
Prefixes being announced from the LACNIC address blocks: 11369
Unique aggregates announced from the LACNIC address blocks: 6961
LACNIC Region origin ASes present in the Internet Routing Table: 747
LACNIC Region origin ASes announcing only one prefix: 244
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 35070464
Equivalent to 2 /8s, 23 /16s and 34 /24s
Percentage of available LACNIC address space announced: 52.3
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: 2447
Total AfriNIC prefixes after maximum aggregation: 937
Prefixes being announced from the AfriNIC address blocks: 1683
Unique aggregates announced from the AfriNIC address blocks: 1059
AfriNIC Region origin ASes present in the Internet Routing Table: 170
AfriNIC Region origin ASes announcing only one prefix: 49
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4489984
Equivalent to 0 /8s, 68 /16s and 131 /24s
Percentage of available AfriNIC address space announced: 13.4
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 1230 8525 248 CHINANET-BACKBONE
4755 1038 384 69 Videsh Sanchar Nigam Ltd. Aut
9583 960 97 71 Sify Limited
9498 887 212 62 BHARTI BT INTERNET LTD.
23577 777 35 707 KRNIC
4766 742 4945 304 Korea Telecom (KIX)
1221 583 1698 448 Telstra Pty Ltd
17488 553 34 19 Hathway IP Over Cable Interne
7545 549 126 74 TPG Internet Pty Ltd
17676 501 10934 65 Softbank BB Corp.
18101 485 86 21 Reliance Infocom Ltd Internet
9443 443 111 74 Primus Telecommunications
9942 441 82 133 COMindico Australia
4812 440 751 64 China Telecom (Shanghai)
17849 423 36 126 Telecommunications Technology
4802 410 86 150 Wantree Development
17557 369 32 179 Pakistan Telecom
17974 369 129 12 PT TELEKOMUNIKASI INDONESIA
2907 333 1749 310 SINET Japan
4837 324 3620 140 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1548 6188 983 AT&T WorldNet Services
2386 1104 571 734 AT&T Data Communications Serv
4323 1044 805 297 Time Warner Telecom
6197 1025 629 498 BellSouth Network Solutions,
18566 979 272 8 Covad Communications
701 952 6707 776 UUNET Technologies, Inc.
174 938 6820 863 Cogent Communications
721 843 21921 301 DLA Systems Automation Center
1239 834 2731 582 Sprint
11492 810 98 15 Cable One
19262 783 2452 177 Verizon Global Networks
20115 766 685 411 Charter Communications
22773 714 1743 41 Cox Communications, Inc.
209 708 3762 553 Qwest
7011 692 213 432 Citizens Utilities
852 595 1087 388 Telus Advanced Communications
19916 567 48 57 OLM LLC
5668 552 161 19 CenturyTel Internet Holdings,
6198 548 526 255 BellSouth Network Solutions,
855 539 250 73 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1928 425 UUNET - Commercial IP service
3301 308 1199 292 TeliaNet Sweden
3320 297 4992 245 Deutsche Telekom AG
24863 286 44 27 LINKdotNET AS number
8220 275 472 265 COLT Telecommunications
6746 259 92 236 Dynamic Network Technologies,
680 250 2041 246 DFN-IP service G-WiN
9116 228 134 23 Goldenlines main autonomous s
3246 225 409 214 Song Networks
8708 221 279 208 Romania Data Systems S.A.
3215 220 1972 94 France Telecom Transpac
1257 218 1073 172 SWIPnet Swedish IP Network
8551 210 198 31 Bezeq International
3269 208 2357 75 TELECOM ITALIA
5416 204 13 13 BATELCO-BH
30890 202 18 82 SC Kappa Invexim SRL
6830 184 823 39 UPC Distribution Services
3300 176 171 95 AUCS Communications Services
786 171 1779 171 The JANET IP Service
3352 170 1735 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 759 1921 208 UniNet S.A. de C.V.
11830 484 299 19 Instituto Costarricense de El
11172 402 101 91 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 267 74 31 ENTEL CHILE S.A.
14117 254 16 13 Telefonica del Sur S.A.
7303 220 98 37 Telecom Argentina Stet-France
6147 215 150 20 Telefonica Del Peru
6503 205 170 93 AVANTEL, S.A.
11556 196 97 5 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 150 20 39 INTERCABLE
7910 147 10 33 ANDINET ON LINE
23216 144 19 43 RAMtelecom Telecomunicaciones
19169 139 9 22 Telconet
19429 135 84 34 E.T.B.
14522 130 20 13 SatNet S.A.
18822 129 8 10 TELEFONICA MANQUEHUE
7738 116 442 21 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 804 232 The Internet Solution
8452 220 60 7 TEDATA
15475 147 84 4 Nile Online
6713 145 136 12 Itissalat Al-MAGHRIB
2018 133 297 111 Tertiary Education Network
5536 122 8 17 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 110 6 4 EEPAD TISP TELECOM & INTERNET
2905 78 173 71 The Internetworking Company o
2561 56 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
5713 40 294 33 Telkom SA Ltd
12455 40 6 3 Jambonet Autonomous system
33774 34 8 21 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
23889 32 10 14 MAURITIUS TELECOM
8524 31 2 5 AUCEGYPT Autonomous System
15804 27 2 1 AS of The Way Out Internet So
10798 23 1 14 Standard Bank of South Africa
21280 23 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1230 982 CHINANET-BACKBONE
18566 979 971 Covad Communications
4755 1038 969 Videsh Sanchar Nigam Ltd. Aut
9583 960 889 Sify Limited
9498 887 825 BHARTI BT INTERNET LTD.
11492 810 795 Cable One
4323 1044 747 Time Warner Telecom
22773 714 673 Cox Communications, Inc.
19262 783 606 Verizon Global Networks
8151 759 551 UniNet S.A. de C.V.
721 843 542 DLA Systems Automation Center
17488 553 534 Hathway IP Over Cable Interne
5668 552 533 CenturyTel Internet Holdings,
6197 1025 527 BellSouth Network Solutions,
19916 567 510 OLM LLC
7545 549 475 TPG Internet Pty Ltd
855 539 466 Canadian Research Network
11830 484 465 Instituto Costarricense de El
18101 485 464 Reliance Infocom Ltd Internet
15270 487 453 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65101 PRIVATE 202.133.56.0/24 9498 BHARTI BT INTERNET L
65101 PRIVATE 202.133.57.0/24 9498 BHARTI BT INTERNET L
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.0.0/15 8895 KACST/ISU Riyadh Autonomous S
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
172.33.1.0/24 7018 AT&T WorldNet Services
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
192.172.0.0/19 721 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 /8:19 /9:10 /10:13 /11:30 /12:111
/13:222 /14:397 /15:794 /16:9077 /17:3625 /18:5826
/19:12664 /20:14281 /21:12838 /22:16203 /23:17682 /24:109219
/25:658 /26:468 /27:364 /28:69 /29:44 /30:80
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 962 979 Covad Communications
2386 826 1104 AT&T Data Communications Serv
7018 822 1548 AT&T WorldNet Services
6197 802 1025 BellSouth Network Solutions,
11492 796 810 Cable One
9583 791 960 Sify Limited
23577 763 777 KRNIC
7011 597 692 Citizens Utilities
19916 562 567 OLM LLC
4766 553 742 Korea Telecom (KIX)
9498 539 887 BHARTI BT INTERNET LTD.
4755 464 1038 Videsh Sanchar Nigam Ltd. Aut
15270 457 487 PaeTec.net -a division of Pae
855 436 539 Canadian Research Network
5668 428 552 CenturyTel Internet Holdings,
1239 421 834 Sprint
18101 418 485 Reliance Infocom Ltd Internet
17849 409 423 Telecommunications Technology
6198 388 548 BellSouth Network Solutions,
33588 388 409 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:66 9:1 12:1648 13:1 15:15
16:3 17:3 18:4 20:39 24:834 25:1
32:56 38:268 40:57 41:31 44:2 47:8
52:4 53:1 55:1 56:3 57:26 58:262
59:336 60:209 61:940 62:1054 63:1882 64:3180
65:2289 66:3113 67:666 68:656 69:1707 70:396
71:112 72:1018 74:110 75:32 76:14 80:829
81:762 82:651 83:373 84:476 85:755 86:420
87:423 88:253 89:625 91:84 97:1 121:74
122:31 123:3 124:459 125:730 128:285 129:205
130:125 131:323 132:46 133:9 134:177 135:42
136:179 137:113 138:187 139:50 140:525 141:134
142:346 143:199 144:252 145:67 146:322 147:140
148:367 149:175 150:108 151:118 152:82 153:121
154:5 155:261 156:148 157:162 158:152 159:138
160:97 161:86 162:217 163:161 164:238 165:235
166:244 167:272 168:487 169:123 170:394 171:11
172:1 190:307 192:5737 193:3576 194:2797 195:2133
196:893 198:3777 199:3294 200:4595 201:963 202:6946
203:7124 204:3944 205:2100 206:2400 207:2906 208:2317
209:3554 210:2215 211:873 212:1425 213:1479 214:383
215:39 216:4118 217:1165 218:349 219:256 220:811
221:357 222:251
End of report
Report Website: http://thyme.apnic.net
More information about the NANOG
mailing list