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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 26 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126246
Prefixes after maximum aggregation: 78807
Unique aggregates announced to Internet: 59211
Total ASes present in the Internet Routing Table: 15239
Origin-only ASes present in the Internet Routing Table: 13204
Origin ASes announcing only one prefix: 5971
Transit ASes present in the Internet Routing Table: 2035
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.8
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: 18
Number of addresses announced to Internet: 1231172800
Equivalent to 73 /8s, 98 /16s and 52 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 54795
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21565
Total APNIC prefixes after maximum aggregation: 12472
Prefixes being announced from the APNIC address blocks: 19963
Unique aggregates announced from the APNIC address blocks: 12055
APNIC Region origin ASes present in the Internet Routing Table: 1810
APNIC Region origin ASes announcing only one prefix: 529
APNIC Region transit ASes present in the Internet Routing Table: 301
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 113450656
Equivalent to 6 /8s, 195 /16s and 30 /24s
Percentage of available APNIC address space announced: 61.1
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: 77653
Total ARIN prefixes after maximum aggregation: 48190
Prefixes being announced from the ARIN address blocks: 55859
Unique aggregates announced from the ARIN address blocks: 16558
ARIN Region origin ASes present in the Internet Routing Table: 8428
ARIN Region origin ASes announcing only one prefix: 2868
ARIN Region transit ASes present in the Internet Routing Table: 817
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 192134656
Equivalent to 11 /8s, 115 /16s and 190 /24s
Percentage of available ARIN address space announced: 71.6
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: 21670
Total RIPE prefixes after maximum aggregation: 15881
Prefixes being announced from the RIPE address blocks: 18177
Unique aggregates announced from the RIPE address blocks: 12071
RIPE Region origin ASes present in the Internet Routing Table: 4596
RIPE Region origin ASes announcing only one prefix: 2488
RIPE Region transit ASes present in the Internet Routing Table: 819
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 131386752
Equivalent to 7 /8s, 212 /16s and 205 /24s
Percentage of available RIPE address space announced: 71.2
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: 5354
Total LACNIC prefixes after maximum aggregation: 2264
Prefixes being announced from the LACNIC address blocks: 4773
Unique aggregates announced from the LACNIC address blocks: 2971
LACNIC Region origin ASes present in the Internet Routing Table: 333
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12576000
Equivalent to 0 /8s, 191 /16s and 229 /24s
Percentage of available LACNIC address space announced: 37.5
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 1081 1103 770 Telstra Pty Ltd
4755 416 134 71 Videsh Sanchar Nigam Ltd. Aut
2907 377 1927 353 SINET Japan
17557 373 26 150 Pakistan Telecom
703 347 373 276 UUNET
2764 314 341 279 connect.com.au pty ltd
4814 295 86 19 China Telecom (Group)
7474 270 290 203 Optus Communications Pty Ltd
17676 248 3830 17 XTAGE CORPORATION
3786 243 773 210 DACOM Corporation
4134 231 2042 117 Data Communications Bureau
9583 225 34 17 Satyam Infoway Ltd.,
4766 213 2475 159 Korea Internet Exchange for "
9443 184 58 84 Primus Telecommunications
9800 181 260 59 CHINA UNICOM
9498 142 10 17 BHARTI BT INTERNET LTD.
4739 137 57 125 Commerical Internet eXchange
9238 134 8 17 TATA ISP
7539 129 140 103 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 1562 8933 1099 UUNET Technologies, Inc.
7018 1335 7208 922 AT&T
4151 1281 691 60 USDA
7132 965 6475 206 Southwestern Bell Internet Se
1239 940 3018 661 Sprint
3908 925 1557 485 Supernet, Inc.
189 705 341 292 Genuity
7843 669 348 184 Adelphia Corp.
1 658 2607 448 GENUITY
4323 596 525 174 Time Warner Communications, I
18566 579 160 8 Covad Communications
2386 563 507 271 AT&T Data Communications Serv
852 535 1123 420 Telus Advanced Communications
705 510 272 333 UUNET Technologies, Inc.
209 488 2104 293 Qwest
6197 487 341 196 BellSouth Network Solutions,
690 476 68 315 Merit Network
20115 472 195 288 Charter Communications
6198 462 229 177 BellSouth Network Solutions,
4355 401 330 111 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 754 2175 641 UUNET - Commercial IP service
3320 346 2004 228 Deutsche Telekom AG
3301 308 1157 295 TeliaNet Sweden
3215 302 852 173 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
1257 227 327 189 SWIPnet Swedish IP Network
8220 224 384 211 COLT Internet - International
719 215 307 124 LANLINK autonomous system
5400 204 121 115 BT Ignite European Backbone
5515 181 795 152 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 154 44 149 Romania Data Systems S.A.
3303 143 549 140 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
20858 125 17 3 This AS will be used to conne
2856 122 1299 112 BTnet UK Regional network
3269 116 819 63 TELECOM ITALIA
3246 112 365 110 Song Networks
3352 108 780 32 Ibernet, Internet Access Netw
2874 101 85 40 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 109 ImpSat
7303 246 37 59 Telecom Argentina Stet-France
8151 212 350 118 UniNet S.A. de C.V.
11172 168 66 40 Servicios Alestra S.A de C.V
16814 137 9 18 NSS, S.A.
6503 136 190 99 AVANTEL, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 95 62 20 Telefonica Del Peru
11992 85 8 37 Integrated Systems
8065 80 8 14 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
4270 68 18 9 Red de Interconexion Universi
13999 68 36 8 Mega Cable S.A. de C.V.
11830 66 4 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7738 63 186 12 Telecomunicacoes da Bahia S.A
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 1281 1221 USDA
7132 965 759 Southwestern Bell Internet Se
18566 579 571 Covad Communications
7843 669 485 Adelphia Corp.
3908 925 440 Supernet, Inc.
4323 596 422 Time Warner Communications, I
7018 1335 413 AT&T
189 705 413 Genuity
4755 416 345 Videsh Sanchar Nigam Ltd. Aut
1221 1081 311 Telstra Pty Ltd
2386 563 292 AT&T Data Communications Serv
6197 487 291 BellSouth Network Solutions,
4355 401 290 EarthLink, Inc.
6198 462 285 BellSouth Network Solutions,
22927 298 285 TELEFONICA DE ARGENTINA
6347 361 282 SAVVIS Communications Corpora
1239 940 279 Sprint
4814 295 276 China Telecom (Group)
27364 294 274 Armstrong Cable Services
22909 272 257 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
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:8 /11:13 /12:51
/13:98 /14:254 /15:475 /16:7427 /17:1682 /18:2972
/19:8427 /20:8423 /21:6109 /22:9040 /23:10659 /24:70079
/25:161 /26:209 /27:52 /28:26 /29:12 /30:21
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 628 705 Genuity
3908 577 925 Supernet, Inc.
18566 573 579 Covad Communications
7018 463 1335 AT&T
702 462 754 UUNET - Commercial IP service
701 440 1562 UUNET Technologies, Inc.
7843 433 669 Adelphia Corp.
690 428 476 Merit Network
6197 363 487 BellSouth Network Solutions,
6198 361 462 BellSouth Network Solutions,
1239 350 940 Sprint
2386 343 563 AT&T Data Communications Serv
20115 333 472 Charter Communications
3320 289 346 Deutsche Telekom AG
27364 287 294 Armstrong Cable Services
4814 281 295 China Telecom (Group)
1 245 658 GENUITY
22927 236 298 TELEFONICA DE ARGENTINA
3215 225 302 France Telecom Transpac
19262 219 249 Verizon Global Networks
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:706 13:1 15:4 16:1 17:3 20:8
24:834 25:1 32:87 38:122 40:19 44:2
55:1 57:17 61:460 62:527 63:1874 64:1774
65:1929 66:2483 67:175 68:385 69:147 80:348
81:123 128:145 129:181 130:47 131:80 132:12
133:1 134:177 135:4 136:117 137:107 138:108
139:65 140:138 141:117 142:93 143:44 144:102
145:14 146:270 147:95 148:288 149:70 150:44
151:79 152:241 153:57 154:7 155:109 156:48
157:40 158:125 159:145 160:39 161:75 162:132
163:75 164:121 165:144 166:94 167:325 168:408
169:62 170:313 171:7 192:5310 193:2431 194:1976
195:1034 196:469 198:3575 199:3934 200:2970 202:3800
203:5248 204:2999 205:2054 206:2376 207:2376 208:2622
209:2841 210:808 211:332 212:994 213:789 214:20
215:23 216:3263 217:616 218:88 219:38 220:95
221:2
End of report
