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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
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 28 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122998
Prefixes after maximum aggregation: 78122
Unique aggregates announced to Internet: 59135
Total ASes present in the Internet Routing Table: 14894
Origin-only ASes present in the Internet Routing Table: 12911
Origin ASes announcing only one prefix: 5837
Transit ASes present in the Internet Routing Table: 1983
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.7
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: 19
Number of addresses announced to Internet: 1220551781
Equivalent to 72 /8s, 192 /16s and 36 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 57742
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20725
Total APNIC prefixes after maximum aggregation: 12301
Prefixes being announced from the APNIC address blocks: 19182
Unique aggregates announced from the APNIC address blocks: 11850
APNIC Region origin ASes present in the Internet Routing Table: 1758
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 108415488
Equivalent to 6 /8s, 118 /16s and 74 /24s
Percentage of available APNIC address space announced: 64.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75705
Total ARIN prefixes after maximum aggregation: 47969
Prefixes being announced from the ARIN address blocks: 53900
Unique aggregates announced from the ARIN address blocks: 16821
ARIN Region origin ASes present in the Internet Routing Table: 8263
ARIN Region origin ASes announcing only one prefix: 2788
ARIN Region transit ASes present in the Internet Routing Table: 793
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188991296
Equivalent to 11 /8s, 67 /16s and 199 /24s
Percentage of available ARIN address space announced: 70.4
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: 21357
Total RIPE prefixes after maximum aggregation: 15641
Prefixes being announced from the RIPE address blocks: 17880
Unique aggregates announced from the RIPE address blocks: 11859
RIPE Region origin ASes present in the Internet Routing Table: 4470
RIPE Region origin ASes announcing only one prefix: 2446
RIPE Region transit ASes present in the Internet Routing Table: 808
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 128518400
Equivalent to 7 /8s, 169 /16s and 9 /24s
Percentage of available RIPE address space announced: 76.6
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: 5209
Total LACNIC prefixes after maximum aggregation: 2211
Prefixes being announced from the LACNIC address blocks: 4635
Unique aggregates announced from the LACNIC address blocks: 2949
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12399872
Equivalent to 0 /8s, 189 /16s and 53 /24s
Percentage of available LACNIC address space announced: 73.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1104 1106 808 Telstra Pty Ltd
703 406 370 314 UUNET
2907 385 1975 364 SINET Japan
17557 375 28 141 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 314 2698 104 Data Communications Bureau
7474 307 276 208 Optus Communications Pty Ltd
4814 267 79 15 China Telecom (Group)
3786 251 772 212 DACOM Corporation
17676 237 3654 25 XTAGE CORPORATION
4755 229 133 74 Videsh Sanchar Nigam Ltd. Aut
9583 219 33 14 Satyam Infoway Ltd.,
4766 211 2074 158 Korea Internet Exchange for "
9443 179 58 78 Primus Telecommunications
9800 174 221 46 CHINA UNICOM
9238 135 8 17 TATA ISP
4716 128 717 122 TTnet
9498 128 9 19 BHARTI BT INTERNET LTD.
4739 127 57 116 Commerical Internet eXchange
7539 127 166 121 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1576 8935 1116 UUNET Technologies, Inc.
7018 1350 7141 942 AT&T
3908 1073 1588 481 Supernet, Inc.
1239 978 3123 695 Sprint
1 690 8073 427 GENUITY
7132 674 5939 475 Southwestern Bell Internet Se
7843 602 400 169 Adelphia Corp.
3561 593 2352 345 Cable & Wireless USA
4151 585 691 60 USDA
4323 562 490 174 Time Warner Communications, I
852 553 1107 436 Telus Advanced Communications
18566 543 122 13 Covad Communications
705 535 208 269 UUNET Technologies, Inc.
209 532 2105 339 Qwest
690 503 73 316 Merit Network
7066 500 204 255 Virginia Polytechnic Institut
2386 499 481 247 AT&T Data Communications Serv
6197 476 338 196 BellSouth Network Solutions,
6198 448 222 175 BellSouth Network Solutions,
20115 419 173 275 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 783 2236 649 UUNET - Commercial IP service
3301 311 1174 301 TeliaNet Sweden
3215 308 835 173 France Telecom Transpac
3320 267 1996 230 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
5400 223 77 106 BT Ignite European Backbone
1257 217 328 191 SWIPnet Swedish IP Network
719 202 307 125 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
20858 153 17 3 This AS will be used to conne
8708 150 42 146 Romania Data Systems S.A.
3303 145 517 144 Swisscom Ltd
8220 136 215 128 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 119 1298 109 BTnet UK Regional network
3269 112 753 62 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 107 11 12 RNC - Romanian Natioanal R&D
3352 106 734 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 290 98 107 ImpSat
7303 241 36 59 Telecom Argentina Stet-France
8151 216 349 116 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
11340 109 3 37 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 74 8 36 Integrated Systems
6535 73 5 21 Chilesat Servicios Empresari
8065 73 6 18 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 64 4 25 Instituto Costarricense de El
7984 61 11 40 Global One Colombia
15034 59 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1073 592 Supernet, Inc.
18566 543 530 Covad Communications
4151 585 525 USDA
7843 602 433 Adelphia Corp.
7018 1350 408 AT&T
4323 562 388 Time Warner Communications, I
1221 1104 296 Telstra Pty Ltd
6347 375 293 SAVVIS Communications Corpora
1239 978 283 Sprint
6197 476 280 BellSouth Network Solutions,
4355 387 278 EarthLink, Inc.
6198 448 273 BellSouth Network Solutions,
22927 286 272 TELEFONICA DE ARGENTINA
705 535 266 UUNET Technologies, Inc.
1 690 263 GENUITY
2386 499 252 AT&T Data Communications Serv
4814 267 252 China Telecom (Group)
3561 593 248 Cable & Wireless USA
27364 265 247 Armstrong Cable Services
7066 500 245 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
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
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
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:3 /10:8 /11:13 /12:47
/13:91 /14:243 /15:455 /16:7365 /17:1636 /18:2939
/19:8272 /20:8227 /21:5866 /22:8858 /23:10655 /24:67415
/25:194 /26:198 /27:129 /28:125 /29:79 /30:90
/31:4 /32:68
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 671 1073 Supernet, Inc.
18566 538 543 Covad Communications
702 486 783 UUNET - Commercial IP service
7018 465 1350 AT&T
701 459 1576 UUNET Technologies, Inc.
690 452 503 Merit Network
7066 399 500 Virginia Polytechnic Institut
1239 374 978 Sprint
6197 355 476 BellSouth Network Solutions,
6198 355 448 BellSouth Network Solutions,
7843 355 602 Adelphia Corp.
2386 299 499 AT&T Data Communications Serv
20115 292 419 Charter Communications
22927 285 286 TELEFONICA DE ARGENTINA
705 281 535 UUNET Technologies, Inc.
6140 277 290 ImpSat
27364 258 265 Armstrong Cable Services
7303 240 241 Telecom Argentina Stet-France
3215 232 308 France Telecom Transpac
209 225 532 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:664 13:1 15:4 17:2 20:10
24:770 25:1 32:93 38:63 40:18 44:2
55:1 57:16 61:462 62:515 63:1947 64:1475
65:1902 66:1606 67:202 68:301 69:70 80:335
81:109 128:149 129:210 130:45 131:83 132:11
133:11 134:146 135:4 136:113 137:111 138:106
139:67 140:149 141:85 142:97 143:47 144:95
145:16 146:266 147:90 148:274 149:74 150:42
151:66 152:248 153:52 154:2 155:112 156:45
157:44 158:123 159:140 160:33 161:61 162:127
163:81 164:307 165:145 166:74 167:322 168:397
169:56 170:316 171:6 192:5303 193:2392 194:1989
195:977 196:478 198:3570 199:3276 200:2883 202:3649
203:5050 204:3053 205:2025 206:2393 207:2407 208:2681
209:2816 210:733 211:332 212:988 213:773 214:20
215:22 216:3234 217:605 218:82 219:11 220:54
End of report
-----
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