[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Jan 20 21:08:53 EAT 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
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 21 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 178949
Prefixes after maximum aggregation: 100271
Unique aggregates announced to Internet: 87108
Total ASes present in the Internet Routing Table: 21341
Origin-only ASes present in the Internet Routing Table: 18557
Origin ASes announcing only one prefix: 8782
Transit ASes present in the Internet Routing Table: 2784
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1481701664
Equivalent to 88 /8s, 80 /16s and 249 /24s
Percentage of available address space announced: 40.0
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86492
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37594
Total APNIC prefixes after maximum aggregation: 15880
Prefixes being announced from the APNIC address blocks: 35380
Unique aggregates announced from the APNIC address blocks: 17327
APNIC Region origin ASes present in the Internet Routing Table: 2461
APNIC Region origin ASes announcing only one prefix: 694
APNIC Region transit ASes present in the Internet Routing Table: 381
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 210786016
Equivalent to 12 /8s, 144 /16s and 86 /24s
Percentage of available APNIC address space announced: 65.9
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: 94137
Total ARIN prefixes after maximum aggregation: 56355
Prefixes being announced from the ARIN address blocks: 73444
Unique aggregates announced from the ARIN address blocks: 28140
ARIN Region origin ASes present in the Internet Routing Table: 10457
ARIN Region origin ASes announcing only one prefix: 3882
ARIN Region transit ASes present in the Internet Routing Table: 966
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 282709248
Equivalent to 16 /8s, 217 /16s and 205 /24s
Percentage of available ARIN address space announced: 70.2
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, 64/6, 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: 35157
Total RIPE prefixes after maximum aggregation: 23723
Prefixes being announced from the RIPE address blocks: 32187
Unique aggregates announced from the RIPE address blocks: 21567
RIPE Region origin ASes present in the Internet Routing Table: 7540
RIPE Region origin ASes announcing only one prefix: 3945
RIPE Region transit ASes present in the Internet Routing Table: 1249
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229825408
Equivalent to 13 /8s, 178 /16s and 219 /24s
Percentage of available RIPE address space announced: 68.5
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: 10230
Total LACNIC prefixes after maximum aggregation: 3444
Prefixes being announced from the LACNIC address blocks: 8400
Unique aggregates announced from the LACNIC address blocks: 5007
LACNIC Region origin ASes present in the Internet Routing Table: 667
LACNIC Region origin ASes announcing only one prefix: 217
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 24633344
Equivalent to 1 /8s, 119 /16s and 224 /24s
Percentage of available LACNIC address space announced: 36.7
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: 1824
Total AfriNIC prefixes after maximum aggregation: 869
Prefixes being announced from the AfriNIC address blocks: 1209
Unique aggregates announced from the AfriNIC address blocks: 857
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 3022592
Equivalent to 0 /8s, 46 /16s and 31 /24s
Percentage of available AfriNIC address space announced: 9.0
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 978 6450 206 CHINANET-BACKBONE
9583 840 109 15 Sify Limited
4755 786 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 719 3929 303 Korea Telecom (KIX)
1221 667 1364 474 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 507 211 69 BHARTI BT INTERNET LTD.
17676 477 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 408 93 85 Primus Telecommunications
4802 361 74 156 Wantree Development
2907 338 1763 315 SINET Japan
9929 334 217 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 327 68 23 Reliance Infocom Ltd Internet
17974 316 77 37 PT TELEKOMUNIKASI INDONESIA
17557 312 25 162 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1477 6297 961 AT&T WorldNet Services
4323 1203 724 236 Time Warner Telecom
174 1037 5805 952 Cogent Communications
721 1025 21921 306 DLA Systems Automation Center
6197 972 436 506 BellSouth Network Solutions,
701 965 8099 807 UUNET Technologies, Inc.
18566 891 272 8 Covad Communications
2386 879 501 687 AT&T Data Communications Serv
1239 854 2790 607 Sprint
20115 659 538 341 Charter Communications
209 658 3603 525 Qwest
11492 644 89 12 Cable One
22773 610 1478 33 Cox Communications, Inc.
19262 594 1703 145 Verizon Global Networks
852 571 1092 380 Telus Advanced Communications
855 571 243 65 Canadian Research Network
19916 563 49 54 OLM LLC
6478 530 1471 293 AT&T Worldnet Services
3602 520 127 106 Sprint Canada, Inc.
5668 517 143 24 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 587 1954 465 UUNET - Commercial IP service
3301 302 1071 288 TeliaNet Sweden
3352 302 1500 34 Ibernet, Internet Access Netw
3320 283 3485 237 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 228 487 218 Song Networks
8708 223 275 207 Romania Data Systems S.A.
6746 215 53 187 Dynamic Network Technologies,
1257 189 712 169 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 171 37 13 Bulgarian Telecommunication C
3215 166 1350 81 France Telecom Transpac
5400 166 328 136 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
6830 161 669 33 UPC Distribution Services
3300 160 170 91 AUCS Communications Services
12479 156 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 558 1048 213 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 303 110 78 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 191 52 13 Mega Cable S.A. de C.V.
14117 181 11 6 Telefonica del Sur S.A.
7303 152 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 122 8 29 Telconet
10481 121 48 8 Prima S.A.
6503 117 148 78 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 88 80 Global One Communicaoes Ltda
11311 100 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
14522 95 12 8 SatNet S.A.
4270 94 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 819 233 The Internet Solution
8452 148 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 76 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
24835 69 34 6 RAYA Telecom - Egypt
6713 68 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 35 8 26 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
21280 21 4 4 Swift Global Kenya Ltd.Is an
12455 19 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1203 967 Time Warner Telecom
18566 891 883 Covad Communications
9583 840 825 Sify Limited
4134 978 772 CHINANET-BACKBONE
4755 786 723 Videsh Sanchar Nigam Ltd. Aut
721 1025 719 DLA Systems Automation Center
11492 644 632 Cable One
22773 610 577 Cox Communications, Inc.
19916 563 509 OLM LLC
855 571 506 Canadian Research Network
5668 517 493 CenturyTel Internet Holdings,
6197 972 466 BellSouth Network Solutions,
19262 594 449 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
9498 507 438 BHARTI BT INTERNET LTD.
17488 436 427 Hathway IP Over Cable Interne
4766 719 416 Korea Telecom (KIX)
3602 520 414 Sprint Canada, Inc.
812 438 410 Rogers WAVE
17676 477 375 Softbank BB Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.152.0/23 6828 Ekaterinburg Telegra
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
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 /9:5 /10:8 /11:20 /12:87
/13:196 /14:349 /15:679 /16:8656 /17:2967 /18:4978
/19:11208 /20:12376 /21:10688 /22:13695 /23:14891 /24:97177
/25:311 /26:253 /27:202 /28:62 /29:26 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 874 891 Covad Communications
6197 785 972 BellSouth Network Solutions,
7018 747 1477 AT&T WorldNet Services
9583 661 840 Sify Limited
11492 635 644 Cable One
2386 613 879 AT&T Data Communications Serv
4323 578 1203 Time Warner Telecom
19916 557 563 OLM LLC
4766 519 719 Korea Telecom (KIX)
855 443 571 Canadian Research Network
5668 406 517 CenturyTel Internet Holdings,
7011 402 468 Citizens Utilities
702 372 587 UUNET - Commercial IP service
1239 369 854 Sprint
6198 356 499 BellSouth Network Solutions,
6517 342 370 Yipes Communications, Inc.
15270 334 361 PaeTec.net -a division of Pae
812 317 438 Rogers WAVE
22773 315 610 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1618 13:1 15:11 16:3
17:3 18:4 20:42 24:762 25:1 30:2
32:67 38:186 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:115 59:158 60:181
61:812 62:728 63:1890 64:2947 65:2156 66:3023
67:586 68:693 69:1385 70:276 71:51 72:573
73:20 80:732 81:602 82:505 83:353 84:340
85:412 86:269 87:146 88:18 89:4 124:5
125:184 128:150 129:174 130:102 131:311 132:34
133:7 134:151 135:46 136:169 137:62 138:181
139:88 140:446 141:135 142:412 143:144 144:225
145:39 146:313 147:134 148:327 149:186 150:112
151:72 152:59 153:99 154:6 155:186 156:91
157:118 158:153 159:178 160:88 161:68 162:252
163:176 164:166 165:176 166:147 167:234 168:478
169:139 170:315 171:12 192:5750 193:3353 194:2461
195:1730 196:731 198:3915 199:3261 200:4204 201:552
202:6457 203:6717 204:3834 205:2059 206:2427 207:2911
208:2012 209:3477 210:1846 211:781 212:1263 213:1453
214:320 215:40 216:3808 217:1152 218:232 219:135
220:642 221:334 222:146
End of report
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