[rtma] Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Aug 8 14:06:49 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 04:00 +10GMT Sat 09 Aug, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127710
Prefixes after maximum aggregation: 79868
Unique aggregates announced to Internet: 60367
Total ASes present in the Internet Routing Table: 15657
Origin-only ASes present in the Internet Routing Table: 13574
Origin ASes announcing only one prefix: 6162
Transit ASes present in the Internet Routing Table: 2083
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
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: 14
Number of addresses announced to Internet: 1238635136
Equivalent to 73 /8s, 212 /16s and 18 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56535
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22207
Total APNIC prefixes after maximum aggregation: 12673
Prefixes being announced from the APNIC address blocks: 20632
Unique aggregates announced from the APNIC address blocks: 12333
APNIC Region origin ASes present in the Internet Routing Table: 1870
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 307
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 118939264
Equivalent to 7 /8s, 22 /16s and 222 /24s
Percentage of available APNIC address space announced: 64.1
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: 77809
Total ARIN prefixes after maximum aggregation: 48602
Prefixes being announced from the ARIN address blocks: 55523
Unique aggregates announced from the ARIN address blocks: 16601
ARIN Region origin ASes present in the Internet Routing Table: 8600
ARIN Region origin ASes announcing only one prefix: 2940
ARIN Region transit ASes present in the Internet Routing Table: 826
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 196613888
Equivalent to 11 /8s, 184 /16s and 23 /24s
Percentage of available ARIN address space announced: 73.2
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: 22334
Total RIPE prefixes after maximum aggregation: 16318
Prefixes being announced from the RIPE address blocks: 18924
Unique aggregates announced from the RIPE address blocks: 12628
RIPE Region origin ASes present in the Internet Routing Table: 4773
RIPE Region origin ASes announcing only one prefix: 2603
RIPE Region transit ASes present in the Internet Routing Table: 848
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 134549056
Equivalent to 8 /8s, 5 /16s and 14 /24s
Percentage of available RIPE address space announced: 72.9
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: 5357
Total LACNIC prefixes after maximum aggregation: 2275
Prefixes being announced from the LACNIC address blocks: 4841
Unique aggregates announced from the LACNIC address blocks: 3146
LACNIC Region origin ASes present in the Internet Routing Table: 345
LACNIC Region origin ASes announcing only one prefix: 96
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 12978688
Equivalent to 0 /8s, 198 /16s and 10 /24s
Percentage of available LACNIC address space announced: 38.7
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 1037 1037 729 Telstra Pty Ltd
4755 441 136 71 Videsh Sanchar Nigam Ltd. Aut
2907 371 1863 346 SINET Japan
703 336 370 268 UUNET
4134 332 2146 113 Data Communications Bureau
17557 302 26 137 Pakistan Telecom
2764 300 323 270 connect.com.au pty ltd
7474 260 306 203 Optus Communications Pty Ltd
17676 252 3878 21 XTAGE CORPORATION
3786 239 777 205 DACOM Corporation
9583 239 37 20 Satyam Infoway Ltd.,
4766 238 2461 170 Korea Internet Exchange for "
9800 195 314 56 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
4538 170 1538 21 China Education and Research
9929 169 153 33 China Netcom Corp.
9498 159 11 25 BHARTI BT INTERNET LTD.
9238 140 9 21 TATA ISP
4739 139 58 128 Commerical Internet eXchange
4716 132 745 126 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1484 8778 1045 UUNET Technologies, Inc.
7018 1372 7151 956 AT&T
1239 935 2998 656 Sprint
3908 908 1534 484 Supernet, Inc.
7132 855 6604 236 Southwestern Bell Internet Se
189 670 371 324 Genuity
18566 652 160 8 Covad Communications
4323 617 550 176 Time Warner Communications, I
6197 562 386 242 BellSouth Network Solutions,
7843 558 400 215 Adelphia Corp.
209 523 2194 303 Qwest
852 523 1124 415 Telus Advanced Communications
1 511 1180 333 GENUITY
6198 500 271 190 BellSouth Network Solutions,
7066 488 205 259 Virginia Polytechnic Institut
705 482 192 303 UUNET Technologies, Inc.
20115 473 196 284 Charter Communications
3356 440 10699 362 Level 3 Communications, LLC
690 411 60 277 Merit Network
4355 405 339 111 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 735 2139 611 UUNET - Commercial IP service
719 312 307 125 LANLINK autonomous system
3301 292 1186 280 TeliaNet Sweden
3320 258 1987 220 Deutsche Telekom AG
8220 246 432 234 COLT Internet - International
680 233 2054 230 DFN-IP service G-WiN
1257 231 309 187 SWIPnet Swedish IP Network
3215 212 736 120 France Telecom Transpac
5515 185 779 149 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 168 157 119 BT Ignite European Backbone
3303 141 540 138 Swisscom Ltd
8708 135 107 132 Romania Data Systems S.A.
12302 127 18 34 MobiFon S.A.
2856 125 1315 116 BTnet UK Regional network
3246 122 376 120 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 111 812 33 Ibernet, Internet Access Netw
2647 100 4129 44 SITA
5511 97 178 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 290 98 106 ImpSat
7303 237 39 55 Telecom Argentina Stet-France
8151 219 334 117 UniNet S.A. de C.V.
11172 177 69 42 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 132 205 93 AVANTEL, S.A.
10620 125 8 31 TVCABLE BOGOTA
11340 107 3 38 Red Universitaria Nacional
11992 87 8 31 Integrated Systems
6147 84 70 21 Telefonica Del Peru
8065 80 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 74 14 38 Telefonica Empresas
1916 73 306 43 Fundacao de Amparo a Pesquisa
11830 73 5 33 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 65 6 39 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
13999 63 36 8 Mega Cable S.A. de C.V.
7984 59 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 652 644 Covad Communications
7132 855 619 Southwestern Bell Internet Se
4323 617 441 Time Warner Communications, I
3908 908 424 Supernet, Inc.
7018 1372 416 AT&T
4755 441 370 Videsh Sanchar Nigam Ltd. Aut
189 670 346 Genuity
7843 558 343 Adelphia Corp.
6197 562 320 BellSouth Network Solutions,
11305 358 320 Interland Incorporated
6198 500 310 BellSouth Network Solutions,
1221 1037 308 Telstra Pty Ltd
27364 317 298 Armstrong Cable Services
4355 405 294 EarthLink, Inc.
6347 364 283 SAVVIS Communications Corpora
1239 935 279 Sprint
22909 284 271 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 357 242 Reseau Interordinateurs Scien
17676 252 231 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 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
192.153.136.0/21 568 DISO-UNRRA
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 /8:19 /9:5 /10:8 /11:13 /12:54
/13:99 /14:263 /15:475 /16:7416 /17:1737 /18:3099
/19:8684 /20:8741 /21:6339 /22:9352 /23:10831 /24:69928
/25:153 /26:259 /27:125 /28:27 /29:11 /30:47
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 646 652 Covad Communications
189 592 670 Genuity
3908 580 908 Supernet, Inc.
7018 484 1372 AT&T
702 448 735 UUNET - Commercial IP service
701 431 1484 UUNET Technologies, Inc.
6197 427 562 BellSouth Network Solutions,
6198 391 500 BellSouth Network Solutions,
7066 385 488 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 338 935 Sprint
20115 322 473 Charter Communications
27364 311 317 Armstrong Cable Services
7843 291 558 Adelphia Corp.
11305 281 358 Interland Incorporated
25844 258 258 Skadden, Arps, Slate, Meagher
10753 224 229 XCOM Technologies, INC.
4355 219 405 EarthLink, Inc.
1 210 511 GENUITY
209 209 523 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:712 13:1 15:4 16:1 17:3
20:6 24:857 25:1 32:98 38:45 40:23
44:2 57:14 61:291 62:383 63:1876 64:1731
65:2016 66:2657 67:221 68:386 69:243 80:396
81:121 82:10 128:135 129:169 130:49 131:81
132:15 134:175 135:7 136:122 137:118 138:120
139:46 140:141 141:116 142:94 143:45 144:99
145:13 146:279 147:59 148:300 149:64 150:104
151:63 152:214 153:57 154:3 155:119 156:55
157:47 158:118 159:137 160:47 161:74 162:407
163:81 164:324 165:146 166:96 167:320 168:181
169:92 170:319 171:8 192:5406 193:2450 194:1979
195:1154 196:472 198:3599 199:2735 200:2994 202:3936
203:5226 204:2959 205:2043 206:2323 207:2445 208:2568
209:2888 210:888 211:305 212:1035 213:910 214:16
215:22 216:3246 217:685 218:102 219:76 220:97
221:10
End of report
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