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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 13 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126129
Prefixes after maximum aggregation: 79032
Unique aggregates announced to Internet: 59425
Total ASes present in the Internet Routing Table: 15334
Origin-only ASes present in the Internet Routing Table: 13292
Origin ASes announcing only one prefix: 6018
Transit ASes present in the Internet Routing Table: 2042
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1251322176
Equivalent to 74 /8s, 149 /16s and 169 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55636
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21478
Total APNIC prefixes after maximum aggregation: 12586
Prefixes being announced from the APNIC address blocks: 19892
Unique aggregates announced from the APNIC address blocks: 12186
APNIC Region origin ASes present in the Internet Routing Table: 1817
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 298
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 114817952
Equivalent to 6 /8s, 215 /16s and 251 /24s
Percentage of available APNIC address space announced: 61.9
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: 77450
Total ARIN prefixes after maximum aggregation: 48216
Prefixes being announced from the ARIN address blocks: 55548
Unique aggregates announced from the ARIN address blocks: 16496
ARIN Region origin ASes present in the Internet Routing Table: 8476
ARIN Region origin ASes announcing only one prefix: 2894
ARIN Region transit ASes present in the Internet Routing Table: 814
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 192875776
Equivalent to 11 /8s, 127 /16s and 13 /24s
Percentage of available ARIN address space announced: 71.9
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: 21791
Total RIPE prefixes after maximum aggregation: 15988
Prefixes being announced from the RIPE address blocks: 18247
Unique aggregates announced from the RIPE address blocks: 12202
RIPE Region origin ASes present in the Internet Routing Table: 4634
RIPE Region origin ASes announcing only one prefix: 2516
RIPE Region transit ASes present in the Internet Routing Table: 830
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132097536
Equivalent to 7 /8s, 223 /16s and 166 /24s
Percentage of available RIPE address space announced: 71.6
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: 5401
Total LACNIC prefixes after maximum aggregation: 2242
Prefixes being announced from the LACNIC address blocks: 4817
Unique aggregates announced from the LACNIC address blocks: 2991
LACNIC Region origin ASes present in the Internet Routing Table: 335
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12709120
Equivalent to 0 /8s, 193 /16s and 237 /24s
Percentage of available LACNIC address space announced: 37.9
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 1073 1087 764 Telstra Pty Ltd
4755 419 133 70 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 348 25 148 Pakistan Telecom
703 343 371 272 UUNET
2764 311 341 278 connect.com.au pty ltd
7474 274 306 205 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 773 210 DACOM Corporation
4134 240 2066 119 Data Communications Bureau
9583 229 35 21 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9800 183 294 59 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 155 10 24 BHARTI BT INTERNET LTD.
4739 139 58 127 Commerical Internet eXchange
9238 135 8 18 TATA ISP
7539 130 156 104 TANet2, sponsored by NSC, TAI
4716 128 745 122 TTnet
9768 126 384 60 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1549 8897 1094 UUNET Technologies, Inc.
7018 1338 7181 927 AT&T
7132 1015 6572 227 Southwestern Bell Internet Se
1239 949 3018 667 Sprint
3908 915 1549 480 Supernet, Inc.
189 683 340 296 Genuity
11305 647 170 72 Interland Incorporated
7843 618 360 171 Adelphia Corp.
1 617 2603 419 GENUITY
4323 603 525 175 Time Warner Communications, I
18566 599 160 8 Covad Communications
852 527 1124 416 Telus Advanced Communications
705 510 273 333 UUNET Technologies, Inc.
209 494 2106 299 Qwest
6197 493 343 195 BellSouth Network Solutions,
7066 484 204 259 Virginia Polytechnic Institut
6198 466 230 177 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 448 65 293 Merit Network
2386 403 506 235 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 750 2174 636 UUNET - Commercial IP service
3301 304 1171 291 TeliaNet Sweden
3215 284 864 159 France Telecom Transpac
5515 281 795 150 Sonera Solution Autonomous Sy
3320 265 2004 227 Deutsche Telekom AG
719 261 307 124 LANLINK autonomous system
680 232 2053 229 DFN-IP service G-WiN
8220 224 384 212 COLT Internet - International
1257 223 315 185 SWIPnet Swedish IP Network
5400 220 139 129 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 152 44 149 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 123 1315 113 BTnet UK Regional network
3246 118 366 114 Song Networks
3269 118 823 65 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
2647 99 4129 39 SITA
5511 95 177 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 296 98 109 ImpSat
7303 238 37 57 Telecom Argentina Stet-France
8151 214 350 117 UniNet S.A. de C.V.
11172 171 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 97 70 21 Telefonica Del Peru
11992 90 9 34 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 82 9 16 Empresas Publicas de Medellin
6535 74 5 21 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 71 12 35 Telefonica Empresas
11311 69 7 13 Sinectis S.A.
4270 68 18 9 Red de Interconexion Universi
11830 66 4 27 Instituto Costarricense de El
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 1015 788 Southwestern Bell Internet Se
18566 599 591 Covad Communications
11305 647 575 Interland Incorporated
7843 618 447 Adelphia Corp.
3908 915 435 Supernet, Inc.
4323 603 428 Time Warner Communications, I
7018 1338 411 AT&T
189 683 387 Genuity
4755 419 349 Videsh Sanchar Nigam Ltd. Aut
1221 1073 309 Telstra Pty Ltd
6197 493 298 BellSouth Network Solutions,
4355 398 294 EarthLink, Inc.
27364 312 294 Armstrong Cable Services
6198 466 289 BellSouth Network Solutions,
22927 298 285 TELEFONICA DE ARGENTINA
6347 363 284 SAVVIS Communications Corpora
1239 949 282 Sprint
376 383 267 Reseau Interordinateurs Scien
22909 276 264 Comcast Cable Corporation
17676 250 231 XTAGE 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
64811 PRIVATE 211.154.136.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.138.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.152.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.154.0/23 4813 China Telecom(Group)
65501 PRIVATE 218.144.170.128/26 4766 Korea Internet Excha
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 /14:256 /15:470 /16:7426 /17:1692 /18:2993
/19:8480 /20:8562 /21:6138 /22:9082 /23:10660 /24:69576
/25:165 /26:256 /27:58 /28:41 /29:26 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 606 683 Genuity
18566 593 599 Covad Communications
3908 573 915 Supernet, Inc.
11305 573 647 Interland Incorporated
7018 466 1338 AT&T
702 458 750 UUNET - Commercial IP service
701 433 1549 UUNET Technologies, Inc.
690 406 448 Merit Network
7066 381 484 Virginia Polytechnic Institut
7843 378 618 Adelphia Corp.
6197 368 493 BellSouth Network Solutions,
6198 364 466 BellSouth Network Solutions,
1239 358 949 Sprint
20115 323 462 Charter Communications
27364 306 312 Armstrong Cable Services
22927 236 298 TELEFONICA DE ARGENTINA
1 225 617 GENUITY
19262 221 257 Verizon Global Networks
4355 217 398 EarthLink, Inc.
3215 213 284 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:704 13:1 15:4 16:1 17:3
20:7 24:854 25:1 32:95 38:40 40:21
44:2 57:17 61:261 62:343 63:1875 64:1950
65:1967 66:2581 67:178 68:375 69:202 80:361
81:129 128:142 129:176 130:47 131:81 132:26
134:174 135:4 136:116 137:106 138:109 139:64
140:158 141:120 142:94 143:43 144:106 145:16
146:272 147:97 148:288 149:61 150:44 151:70
152:231 153:60 154:7 155:116 156:54 157:45
158:127 159:138 160:43 161:76 162:130 163:77
164:312 165:143 166:94 167:318 168:408 169:61
170:312 171:8 192:5352 193:2474 194:2003 195:1057
196:474 198:3564 199:2717 200:2996 202:3793 203:5245
204:3001 205:2050 206:2369 207:2425 208:2593 209:2900
210:814 211:353 212:984 213:810 214:19 215:23
216:3554 217:628 218:89 219:44 220:94 221:3
End of report
-----
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