[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri May 9 06:06:40 EDT 2003
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 a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 09 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125563
Prefixes after maximum aggregation: 78379
Unique aggregates announced to Internet: 59211
Total ASes present in the Internet Routing Table: 15152
Origin-only ASes present in the Internet Routing Table: 13121
Origin ASes announcing only one prefix: 5974
Transit ASes present in the Internet Routing Table: 2031
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1229405952
Equivalent to 73 /8s, 71 /16s and 63 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 54495
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21283
Total APNIC prefixes after maximum aggregation: 12344
Prefixes being announced from the APNIC address blocks: 19735
Unique aggregates announced from the APNIC address blocks: 12033
APNIC Region origin ASes present in the Internet Routing Table: 1793
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 305
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 113092064
Equivalent to 6 /8s, 189 /16s and 165 /24s
Percentage of available APNIC address space announced: 60.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 77245
Total ARIN prefixes after maximum aggregation: 47957
Prefixes being announced from the ARIN address blocks: 55269
Unique aggregates announced from the ARIN address blocks: 16490
ARIN Region origin ASes present in the Internet Routing Table: 8384
ARIN Region origin ASes announcing only one prefix: 2874
ARIN Region transit ASes present in the Internet Routing Table: 805
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 191589376
Equivalent to 11 /8s, 107 /16s and 108 /24s
Percentage of available ARIN address space announced: 71.4
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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, 29695 - 30719
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21702
Total RIPE prefixes after maximum aggregation: 15842
Prefixes being announced from the RIPE address blocks: 18224
Unique aggregates announced from the RIPE address blocks: 12048
RIPE Region origin ASes present in the Internet Routing Table: 4570
RIPE Region origin ASes announcing only one prefix: 2490
RIPE Region transit ASes present in the Internet Routing Table: 820
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 130081408
Equivalent to 7 /8s, 192 /16s and 226 /24s
Percentage of available RIPE address space announced: 70.5
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5331
Total LACNIC prefixes after maximum aggregation: 2236
Prefixes being announced from the LACNIC address blocks: 4750
Unique aggregates announced from the LACNIC address blocks: 3020
LACNIC Region origin ASes present in the Internet Routing Table: 333
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12505856
Equivalent to 0 /8s, 190 /16s and 211 /24s
Percentage of available LACNIC address space announced: 37.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1083 1103 771 Telstra Pty Ltd
4755 415 134 72 Videsh Sanchar Nigam Ltd. Aut
2907 388 1993 365 SINET Japan
703 386 382 307 UUNET
17557 369 26 146 Pakistan Telecom
2764 317 341 281 connect.com.au pty ltd
4814 294 85 21 China Telecom (Group)
7474 271 291 207 Optus Communications Pty Ltd
17676 247 3814 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
4134 226 2038 116 Data Communications Bureau
9583 220 33 14 Satyam Infoway Ltd.,
4766 216 2478 162 Korea Internet Exchange for "
9443 183 58 82 Primus Telecommunications
9800 179 259 57 CHINA UNICOM
9238 139 8 17 TATA ISP
4739 136 57 125 Commerical Internet eXchange
9498 133 9 19 BHARTI BT INTERNET LTD.
4716 126 729 120 TTnet
9768 126 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1564 8904 1102 UUNET Technologies, Inc.
7018 1334 7154 924 AT&T
4151 1083 691 60 USDA
1239 964 3091 676 Sprint
7132 963 6476 208 Southwestern Bell Internet Se
3908 918 1571 473 Supernet, Inc.
1 729 2710 464 GENUITY
189 706 341 289 Genuity
7843 655 346 169 Adelphia Corp.
4323 586 514 169 Time Warner Communications, I
18566 576 160 8 Covad Communications
852 550 1156 431 Telus Advanced Communications
2386 546 483 277 AT&T Data Communications Serv
705 533 286 237 UUNET Technologies, Inc.
3561 507 2340 329 Cable & Wireless USA
209 490 2104 295 Qwest
7066 486 204 260 Virginia Polytechnic Institut
6197 483 340 193 BellSouth Network Solutions,
690 482 69 315 Merit Network
20115 466 191 288 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 758 2172 639 UUNET - Commercial IP service
3320 347 2004 229 Deutsche Telekom AG
3301 307 1157 297 TeliaNet Sweden
3215 303 852 174 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
1257 226 327 188 SWIPnet Swedish IP Network
5400 201 111 113 BT Ignite European Backbone
8220 201 366 190 COLT Internet - International
719 193 307 125 LANLINK autonomous system
5515 189 795 153 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
20858 165 17 3 This AS will be used to conne
8708 164 44 151 Romania Data Systems S.A.
3303 141 517 140 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 124 1299 113 BTnet UK Regional network
3269 114 787 62 TELECOM ITALIA
3246 109 383 106 Song Networks
3352 107 748 30 Ibernet, Internet Access Netw
2874 97 85 38 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 291 98 105 ImpSat
7303 255 36 64 Telecom Argentina Stet-France
8151 220 335 122 UniNet S.A. de C.V.
11172 166 66 36 Servicios Alestra S.A de C.V
6503 141 206 101 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 104 3 33 Red Universitaria Nacional
6147 91 62 20 Telefonica Del Peru
11992 88 8 36 Integrated Systems
4270 74 18 10 Red de Interconexion Universi
8065 74 8 16 Empresas Publicas de Medellin
13999 74 36 8 Mega Cable S.A. de C.V.
1916 73 306 43 Fundacao de Amparo a Pesquisa
6535 73 5 22 Chilesat Servicios Empresari
15311 72 28 36 Telefonica Empresas
11830 67 5 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 1083 1023 USDA
7132 963 755 Southwestern Bell Internet Se
18566 576 568 Covad Communications
7843 655 486 Adelphia Corp.
3908 918 445 Supernet, Inc.
189 706 417 Genuity
4323 586 417 Time Warner Communications, I
7018 1334 410 AT&T
4755 415 343 Videsh Sanchar Nigam Ltd. Aut
1221 1083 312 Telstra Pty Ltd
705 533 296 UUNET Technologies, Inc.
6197 483 290 BellSouth Network Solutions,
6347 371 290 SAVVIS Communications Corpora
4355 393 289 EarthLink, Inc.
1239 964 288 Sprint
6198 463 287 BellSouth Network Solutions,
22927 297 284 TELEFONICA DE ARGENTINA
4814 294 273 China Telecom (Group)
2386 546 269 AT&T Data Communications Serv
1 729 265 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64512 PRIVATE 194.67.54.0/24 3216 Teleross, Moscow, Ru
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.16.52.0/24 1239 Sprint
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.158.254.0/24 705 UUNET Technologies, Inc.
192.172.0.0/19 568 DISO-UNRRA
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 /11:13 /12:51
/13:93 /14:253 /15:468 /16:7418 /17:1677 /18:2969
/19:8385 /20:8389 /21:6004 /22:8959 /23:10636 /24:69736
/25:159 /26:184 /27:52 /28:25 /29:13 /30:22
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 706 Genuity
3908 574 918 Supernet, Inc.
18566 570 576 Covad Communications
7018 467 1334 AT&T
702 465 758 UUNET - Commercial IP service
701 433 1564 UUNET Technologies, Inc.
690 431 482 Merit Network
7843 418 655 Adelphia Corp.
7066 383 486 Virginia Polytechnic Institut
6198 362 463 BellSouth Network Solutions,
6197 360 483 BellSouth Network Solutions,
1239 357 964 Sprint
2386 329 546 AT&T Data Communications Serv
20115 329 466 Charter Communications
3320 290 347 Deutsche Telekom AG
4814 280 294 China Telecom (Group)
27364 263 270 Armstrong Cable Services
1 253 729 GENUITY
22927 235 297 TELEFONICA DE ARGENTINA
3215 226 303 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:695 13:1 15:4 16:1 17:3 20:8
24:804 25:1 32:87 38:121 40:19 44:2
55:1 57:16 61:444 62:609 63:1863 64:1642
65:1924 66:2420 67:182 68:367 69:121 80:362
81:156 128:146 129:180 130:45 131:80 132:11
133:1 134:143 135:4 136:113 137:107 138:108
139:65 140:139 141:111 142:98 143:44 144:100
145:17 146:269 147:95 148:288 149:72 150:44
151:78 152:244 153:57 154:2 155:112 156:46
157:42 158:127 159:147 160:37 161:73 162:142
163:76 164:308 165:142 166:95 167:334 168:408
169:62 170:308 171:7 192:5342 193:2422 194:1978
195:1036 196:461 198:3562 199:3743 200:2957 202:3804
203:5168 204:3036 205:2059 206:2355 207:2406 208:2616
209:2872 210:781 211:323 212:958 213:793 214:20
215:23 216:3215 217:621 218:90 219:22 220:93
End of report
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