[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Jun 6 06:06:31 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
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 06 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125953
Prefixes after maximum aggregation: 78963
Unique aggregates announced to Internet: 59252
Total ASes present in the Internet Routing Table: 15289
Origin-only ASes present in the Internet Routing Table: 13266
Origin ASes announcing only one prefix: 6004
Transit ASes present in the Internet Routing Table: 2023
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 30
Number of addresses announced to Internet: 1233876800
Equivalent to 73 /8s, 139 /16s and 119 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55596
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21756
Total APNIC prefixes after maximum aggregation: 12616
Prefixes being announced from the APNIC address blocks: 20161
Unique aggregates announced from the APNIC address blocks: 12160
APNIC Region origin ASes present in the Internet Routing Table: 1808
APNIC Region origin ASes announcing only one prefix: 515
APNIC Region transit ASes present in the Internet Routing Table: 297
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 114662816
Equivalent to 6 /8s, 213 /16s and 157 /24s
Percentage of available APNIC address space announced: 61.8
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: 77202
Total ARIN prefixes after maximum aggregation: 48130
Prefixes being announced from the ARIN address blocks: 55311
Unique aggregates announced from the ARIN address blocks: 16369
ARIN Region origin ASes present in the Internet Routing Table: 8450
ARIN Region origin ASes announcing only one prefix: 2884
ARIN Region transit ASes present in the Internet Routing Table: 812
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 192464128
Equivalent to 11 /8s, 120 /16s and 197 /24s
Percentage of available ARIN address space announced: 71.7
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: 21643
Total RIPE prefixes after maximum aggregation: 15966
Prefixes being announced from the RIPE address blocks: 18139
Unique aggregates announced from the RIPE address blocks: 12183
RIPE Region origin ASes present in the Internet Routing Table: 4629
RIPE Region origin ASes announcing only one prefix: 2520
RIPE Region transit ASes present in the Internet Routing Table: 818
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 131964416
Equivalent to 7 /8s, 221 /16s and 158 /24s
Percentage of available RIPE address space announced: 71.5
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: 5348
Total LACNIC prefixes after maximum aggregation: 2251
Prefixes being announced from the LACNIC address blocks: 4781
Unique aggregates announced from the LACNIC address blocks: 2991
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12624640
Equivalent to 0 /8s, 192 /16s and 163 /24s
Percentage of available LACNIC address space announced: 37.6
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 1076 1103 769 Telstra Pty Ltd
4755 421 134 72 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 359 25 150 Pakistan Telecom
703 343 371 272 UUNET
2764 314 341 280 connect.com.au pty ltd
4814 297 86 19 China Telecom (Group)
7474 268 290 202 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 772 209 DACOM Corporation
4134 241 2067 120 Data Communications Bureau
9583 228 34 18 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9443 182 58 82 Primus Telecommunications
9800 181 260 59 CHINA UNICOM
9498 147 10 18 BHARTI BT INTERNET LTD.
4739 138 57 126 Commerical Internet eXchange
9238 134 8 17 TATA ISP
7539 130 156 104 TANet2, sponsored by NSC, TAI
4716 128 745 122 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1554 8929 1094 UUNET Technologies, Inc.
7018 1331 7193 921 AT&T
7132 1015 6572 227 Southwestern Bell Internet Se
1239 951 3022 669 Sprint
3908 919 1557 482 Supernet, Inc.
189 705 341 292 Genuity
11305 646 170 72 Interland Incorporated
1 634 2623 429 GENUITY
7843 631 356 180 Adelphia Corp.
4323 598 525 175 Time Warner Communications, I
18566 588 160 8 Covad Communications
852 526 1124 416 Telus Advanced Communications
705 510 273 333 UUNET Technologies, Inc.
209 493 2106 299 Qwest
6197 491 343 194 BellSouth Network Solutions,
7066 481 204 259 Virginia Polytechnic Institut
6198 466 230 177 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 452 66 296 Merit Network
2386 440 521 250 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 750 2173 637 UUNET - Commercial IP service
3301 303 1172 290 TeliaNet Sweden
3215 295 880 168 France Telecom Transpac
3320 266 2004 227 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 224 311 186 SWIPnet Swedish IP Network
8220 223 384 211 COLT Internet - International
5400 222 139 131 BT Ignite European Backbone
719 215 307 124 LANLINK autonomous system
5515 181 795 152 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 152 44 149 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
8895 131 58 29 KACST/ISU Riyadh Autonomous S
12302 128 18 35 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3269 117 823 64 TELECOM ITALIA
3246 116 366 114 Song Networks
3352 109 780 32 Ibernet, Internet Access Netw
5511 95 177 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 295 98 110 ImpSat
7303 238 37 57 Telecom Argentina Stet-France
8151 214 350 117 UniNet S.A. de C.V.
11172 169 82 41 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 131 189 94 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 106 3 34 Red Universitaria Nacional
6147 98 70 21 Telefonica Del Peru
11992 89 8 37 Integrated Systems
8065 80 8 15 Empresas Publicas de Medellin
6535 74 5 23 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 71 12 35 Telefonica Empresas
13999 68 36 8 Mega Cable S.A. de C.V.
4270 67 18 9 Red de Interconexion Universi
11830 66 4 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11311 64 6 13 Sinectis S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 1015 788 Southwestern Bell Internet Se
18566 588 580 Covad Communications
11305 646 574 Interland Incorporated
7843 631 451 Adelphia Corp.
3908 919 437 Supernet, Inc.
4323 598 423 Time Warner Communications, I
189 705 413 Genuity
7018 1331 410 AT&T
4755 421 349 Videsh Sanchar Nigam Ltd. Aut
1221 1076 307 Telstra Pty Ltd
6197 491 297 BellSouth Network Solutions,
27364 315 297 Armstrong Cable Services
4355 404 293 EarthLink, Inc.
6198 466 289 BellSouth Network Solutions,
6347 363 285 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 951 282 Sprint
4814 297 278 China Telecom (Group)
376 384 268 Reseau Interordinateurs Scien
22909 274 264 Comcast Cable Corporation
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65516 PRIVATE 61.232.70.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.71.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.72.0/22 17621 China Netcom Corp.
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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
172.208.0.0/14 1668 GNN Hosting Service
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
192.228.21.0/24 27299 CIRA Canadian Internet Regist
192.228.22.0/24 27299 CIRA Canadian Internet Regist
192.228.23.0/24 27299 CIRA Canadian Internet Regist
192.228.24.0/24 27299 CIRA Canadian Internet Regist
192.228.25.0/24 27299 CIRA Canadian Internet Regist
192.228.26.0/24 27299 CIRA Canadian Internet Regist
192.228.27.0/24 27299 CIRA Canadian Internet Regist
192.228.28.0/24 27299 CIRA Canadian Internet Regist
192.228.29.0/24 27299 CIRA Canadian Internet Regist
192.228.30.0/24 27299 CIRA Canadian Internet Regist
192.228.31.0/24 27299 CIRA Canadian Internet Regist
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:5 /10:8 /11:13 /12:52
/13:99 /14:256 /15:470 /16:7425 /17:1674 /18:2992
/19:8462 /20:8533 /21:6153 /22:9084 /23:10662 /24:69503
/25:161 /26:215 /27:55 /28:40 /29:26 /30:21
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 628 705 Genuity
18566 582 588 Covad Communications
3908 575 919 Supernet, Inc.
11305 572 646 Interland Incorporated
7018 463 1331 AT&T
702 459 750 UUNET - Commercial IP service
701 437 1554 UUNET Technologies, Inc.
690 410 452 Merit Network
7843 393 631 Adelphia Corp.
7066 378 481 Virginia Polytechnic Institut
6197 367 491 BellSouth Network Solutions,
6198 364 466 BellSouth Network Solutions,
1239 357 951 Sprint
20115 323 462 Charter Communications
27364 308 315 Armstrong Cable Services
4814 282 297 China Telecom (Group)
22927 236 298 TELEFONICA DE ARGENTINA
1 235 634 GENUITY
2386 220 440 AT&T Data Communications Serv
3215 219 295 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:705 13:1 15:4 16:1 17:3
20:8 24:858 25:1 32:87 38:60 40:20
44:2 57:17 61:468 62:345 63:1868 64:1934
65:1964 66:2583 67:177 68:380 69:164 80:348
81:126 128:138 129:177 130:48 131:80 132:26
134:176 135:4 136:117 137:107 138:110 139:64
140:137 141:111 142:94 143:42 144:105 145:14
146:276 147:97 148:288 149:61 150:43 151:69
152:231 153:57 154:3 155:116 156:53 157:37
158:126 159:139 160:43 161:77 162:128 163:76
164:308 165:143 166:93 167:323 168:411 169:61
170:312 171:7 192:5333 193:2456 194:1953 195:1034
196:471 198:3560 199:2719 200:2978 202:3783 203:5264
204:2987 205:2029 206:2366 207:2413 208:2581 209:2886
210:821 211:333 212:1075 213:793 214:20 215:23
216:3535 217:615 218:87 219:39 220:92 221:3
End of report
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