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Weekly Routing Table Report
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 20 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125820
Prefixes after maximum aggregation: 79010
Unique aggregates announced to Internet: 59502
Total ASes present in the Internet Routing Table: 15384
Origin-only ASes present in the Internet Routing Table: 13338
Origin ASes announcing only one prefix: 6045
Transit ASes present in the Internet Routing Table: 2046
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1252521120
Equivalent to 74 /8s, 167 /16s and 244 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55442
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21467
Total APNIC prefixes after maximum aggregation: 12556
Prefixes being announced from the APNIC address blocks: 19908
Unique aggregates announced from the APNIC address blocks: 12225
APNIC Region origin ASes present in the Internet Routing Table: 1823
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 297
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 115912352
Equivalent to 6 /8s, 232 /16s and 174 /24s
Percentage of available APNIC address space announced: 62.5
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: 77230
Total ARIN prefixes after maximum aggregation: 48181
Prefixes being announced from the ARIN address blocks: 55477
Unique aggregates announced from the ARIN address blocks: 16498
ARIN Region origin ASes present in the Internet Routing Table: 8492
ARIN Region origin ASes announcing only one prefix: 2901
ARIN Region transit ASes present in the Internet Routing Table: 818
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193233408
Equivalent to 11 /8s, 132 /16s and 130 /24s
Percentage of available ARIN address space announced: 72.0
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: 21714
Total RIPE prefixes after maximum aggregation: 16015
Prefixes being announced from the RIPE address blocks: 18214
Unique aggregates announced from the RIPE address blocks: 12225
RIPE Region origin ASes present in the Internet Routing Table: 4659
RIPE Region origin ASes announcing only one prefix: 2531
RIPE Region transit ASes present in the Internet Routing Table: 831
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132361024
Equivalent to 7 /8s, 227 /16s and 171 /24s
Percentage of available RIPE address space announced: 71.7
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: 5408
Total LACNIC prefixes after maximum aggregation: 2258
Prefixes being announced from the LACNIC address blocks: 4804
Unique aggregates announced from the LACNIC address blocks: 3014
LACNIC Region origin ASes present in the Internet Routing Table: 336
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12777216
Equivalent to 0 /8s, 194 /16s and 247 /24s
Percentage of available LACNIC address space announced: 38.1
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 1058 1070 752 Telstra Pty Ltd
4755 400 133 67 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 346 24 151 Pakistan Telecom
703 335 371 268 UUNET
2764 307 325 274 connect.com.au pty ltd
7474 271 306 204 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 244 773 211 DACOM Corporation
9583 230 37 21 Satyam Infoway Ltd.,
4134 222 1915 112 Data Communications Bureau
4766 212 2475 159 Korea Internet Exchange for "
9800 186 302 61 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 166 11 28 BHARTI BT INTERNET LTD.
4739 139 58 127 Commerical Internet eXchange
9929 139 169 34 China Netcom Corp.
4716 128 745 122 TTnet
9238 127 8 21 TATA ISP
7539 126 154 100 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1543 8833 1088 UUNET Technologies, Inc.
7018 1337 7180 922 AT&T
1239 952 3020 670 Sprint
7132 923 6573 229 Southwestern Bell Internet Se
3908 906 1548 477 Supernet, Inc.
189 683 340 296 Genuity
11305 647 170 72 Interland Incorporated
7843 614 360 173 Adelphia Corp.
1 610 2602 412 GENUITY
4323 601 525 175 Time Warner Communications, I
18566 601 160 8 Covad Communications
852 527 1124 416 Telus Advanced Communications
6197 518 350 212 BellSouth Network Solutions,
705 510 273 333 UUNET Technologies, Inc.
209 501 2108 303 Qwest
7066 488 204 261 Virginia Polytechnic Institut
6198 473 231 182 BellSouth Network Solutions,
20115 463 194 284 Charter Communications
690 450 65 293 Merit Network
2386 407 542 235 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 746 2172 633 UUNET - Commercial IP service
3301 303 1171 290 TeliaNet Sweden
3320 266 2004 228 Deutsche Telekom AG
719 264 307 125 LANLINK autonomous system
3215 261 834 150 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 225 384 213 COLT Internet - International
1257 223 311 185 SWIPnet Swedish IP Network
5400 204 143 123 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
5515 179 795 150 Sonera Solution Autonomous Sy
8708 153 44 150 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3246 120 384 116 Song Networks
3269 118 823 65 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
5511 101 178 81 France Telecom
2647 97 4129 39 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 297 98 107 ImpSat
7303 237 37 58 Telecom Argentina Stet-France
8151 215 350 117 UniNet S.A. de C.V.
11172 170 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 130 189 93 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 99 70 21 Telefonica Del Peru
11992 89 8 38 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 80 9 16 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 72 12 36 Telefonica Empresas
11311 69 7 13 Sinectis S.A.
4270 68 18 9 Red de Interconexion Universi
11830 67 5 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 923 694 Southwestern Bell Internet Se
18566 601 593 Covad Communications
11305 647 575 Interland Incorporated
7843 614 441 Adelphia Corp.
3908 906 429 Supernet, Inc.
4323 601 426 Time Warner Communications, I
7018 1337 415 AT&T
189 683 387 Genuity
4755 400 333 Videsh Sanchar Nigam Ltd. Aut
1221 1058 306 Telstra Pty Ltd
6197 518 306 BellSouth Network Solutions,
27364 319 301 Armstrong Cable Services
4355 397 294 EarthLink, Inc.
6198 473 291 BellSouth Network Solutions,
6347 368 288 SAVVIS Communications Corpora
1239 952 282 Sprint
376 383 267 Reseau Interordinateurs Scien
22909 277 265 Comcast Cable Corporation
17676 250 231 XTAGE CORPORATION
7066 488 227 Virginia Polytechnic Institut
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
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
192.43.230.0/24 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
192.158.254.0/24 705 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 /8:20 /9:5 /10:8 /11:13 /12:53
/13:99 /14:257 /15:470 /16:7428 /17:1699 /18:3003
/19:8483 /20:8532 /21:6169 /22:9086 /23:10664 /24:69249
/25:157 /26:252 /27:57 /28:42 /29:26 /30:21
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 606 683 Genuity
18566 595 601 Covad Communications
11305 573 647 Interland Incorporated
3908 570 906 Supernet, Inc.
7018 469 1337 AT&T
702 456 746 UUNET - Commercial IP service
701 432 1543 UUNET Technologies, Inc.
690 408 450 Merit Network
6197 390 518 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
7843 373 614 Adelphia Corp.
6198 370 473 BellSouth Network Solutions,
1239 358 952 Sprint
20115 323 463 Charter Communications
27364 313 319 Armstrong Cable Services
19262 227 268 Verizon Global Networks
1 223 610 GENUITY
4355 217 397 EarthLink, Inc.
3320 207 266 Deutsche Telekom AG
705 203 510 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:707 13:1 15:4 16:1 17:3
20:7 24:856 25:1 32:95 38:40 40:21
44:2 57:17 61:254 62:362 63:1869 64:1941
65:1971 66:2585 67:177 68:371 69:178 80:366
81:123 128:135 129:172 130:47 131:79 132:26
134:174 135:4 136:116 137:107 138:108 139:64
140:168 141:122 142:94 143:42 144:105 145:14
146:272 147:97 148:291 149:60 150:69 151:69
152:231 153:61 154:7 155:116 156:53 157:45
158:123 159:139 160:43 161:75 162:130 163:77
164:312 165:142 166:95 167:320 168:171 169:73
170:315 171:8 192:5321 193:2450 194:1953 195:1061
196:479 198:3586 199:2718 200:2964 202:3805 203:5211
204:3003 205:2048 206:2338 207:2434 208:2600 209:2893
210:835 211:353 212:971 213:822 214:19 215:23
216:3566 217:639 218:89 219:45 220:95 221:3
End of report
-----
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