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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04:00 +10GMT Tue 25 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116719
Prefixes after maximum aggregation: 75298
Unique aggregates announced to Internet: 54457
Total ASes present in the Internet Routing Table: 13276
Origin-only ASes present in the Internet Routing Table: 11506
Origin ASes announcing only one prefix: 5075
Transit ASes present in the Internet Routing Table: 1770
Transit-only ASes present in the Internet Routing Table: 49
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1187416284
Equivalent to 70 /8s, 198 /16s and 136 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 48836
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18327
Total APNIC prefixes after maximum aggregation: 10919
Prefixes being announced from the APNIC address blocks: 16948
Unique aggregates announced from the APNIC address blocks: 10416
APNIC Region origin ASes present in the Internet Routing Table: 1540
APNIC Region origin ASes announcing only one prefix: 503
APNIC Region transit ASes present in the Internet Routing Table: 272
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 86556768
Equivalent to 5 /8s, 40 /16s and 192 /24s
Percentage of available APNIC address space announced: 64.0
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79158
Total ARIN prefixes after maximum aggregation: 49825
Prefixes being announced from the ARIN address blocks: 54769
Unique aggregates announced from the ARIN address blocks: 17914
ARIN Region origin ASes present in the Internet Routing Table: 7824
ARIN Region origin ASes announcing only one prefix: 2499
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188933204
Equivalent to 11 /8s, 66 /16s and 228 /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 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19233
Total RIPE prefixes after maximum aggregation: 14554
Prefixes being announced from the RIPE address blocks: 15939
Unique aggregates announced from the RIPE address blocks: 10543
RIPE Region origin ASes present in the Internet Routing Table: 3864
RIPE Region origin ASes announcing only one prefix: 2073
RIPE Region transit ASes present in the Internet Routing Table: 713
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111869472
Equivalent to 6 /8s, 170 /16s and 254 /24s
Percentage of available RIPE address space announced: 74.1
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
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1262 1222 908 Telstra Pty Ltd
4538 442 1194 16 China Education and Research
703 417 357 333 UUNET Technologies, Inc.
2907 384 1876 358 SINET Japan
2764 368 358 337 connect.com.au pty ltd
7474 311 292 208 Optus Communications Pty Ltd
17557 301 20 115 Pakistan Telecom
4755 294 117 83 Videsh Sanchar Nigam Ltd. Aut
4134 288 2114 105 Data Communications Bureau
9443 249 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 197 79 14 China Telecom (Group) - Beiji
4713 186 1009 106 NTT Communications Corporatio
9583 175 32 5 Satyam Infoway Ltd.,
17676 151 2338 22 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 138 22 87 The Internet Group Limited
9800 116 191 24 CHINA UNICOM
4621 112 11 62 UNINET-TH
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1020 2617 844 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 279 537 27 Ibernet, Internet Access Netw
3215 263 598 162 France Telecom / &Equant
3320 234 1962 187 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
1257 204 430 201 SWIPnet Swedish IP Network
5400 204 83 94 Concert European Core Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 138 23 135 Romania Data Systems S.A.
3303 134 546 133 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 125 786 115 BTnet UK Regional network
3269 113 692 70 TELECOM ITALIA
8297 112 55 64 Teleglobe Autonomous System i
3246 110 301 105 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
5511 98 190 81 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2744 341 2234 Performance Systems, Inc.
701 2013 9259 1401 UUNET Technologies, Inc.
7018 1289 7453 929 AT&T
3908 914 1642 497 Supernet, Inc.
1239 829 3363 654 Sprint
705 817 190 284 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 674 1173 449 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 610 1959 342 Qwest
7843 601 375 60 Adelphia Corp.
7046 596 860 383 UUNET Technologies, Inc.
174 585 4608 37 PSINet Inc.
690 585 80 371 Merit Network
7132 578 659 134 Southwestern Bell Internet Se
7066 476 202 249 Virginia Polytechnic Institut
3549 446 837 318 Global Crossing
2914 392 2100 384 Verio, Inc.
15290 383 299 197 AT&T Canada IES
6197 346 247 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2013 612 UUNET Technologies, Inc.
174 585 548 PSINet Inc.
7843 601 541 Adelphia Corp.
705 817 533 UUNET Technologies, Inc.
7132 578 444 Southwestern Bell Internet Se
4538 442 426 China Education and Research
3908 914 417 Supernet, Inc.
4323 632 373 Time Warner Communications, I
7018 1289 360 AT&T
1221 1262 354 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 610 268 Qwest
6347 341 263 SAVVIS Communications Corpora
3352 279 252 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 302 249 EarthLink, Inc.
7029 254 239 Alltel Information Services,
7066 476 227 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13136 UNALLOCATED 80.85.128.0/20 16243 Virtu Secure Webserv
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:6 /10:7 /11:12 /12:35
/13:88 /14:235 /15:417 /16:7225 /17:1457 /18:2624
/19:7659 /20:7273 /21:5089 /22:7846 /23:9556 /24:66478
/25:191 /26:171 /27:81 /28:86 /29:46 /30:89
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2216 2744 Performance Systems, Inc.
702 627 1020 UUNET Technologies, Inc.
705 610 817 UUNET Technologies, Inc.
701 573 2013 UUNET Technologies, Inc.
3908 501 914 Supernet, Inc.
174 489 585 PSINet Inc.
690 463 585 Merit Network
7843 385 601 Adelphia Corp.
7066 381 476 Virginia Polytechnic Institut
7018 347 1289 AT&T
209 275 610 Qwest
6197 248 346 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
7046 240 596 UUNET Technologies, Inc.
7029 239 254 Alltel Information Services,
3301 238 402 TeliaNet Sweden
6198 235 322 BellSouth Network Solutions,
18566 221 225 Covad Communications
1239 217 829 Sprint
6517 217 239 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:511 13:10 15:2 17:6
20:2 24:794 25:1 32:41 38:2548 40:6
44:1 57:13 61:263 62:215 63:1921 64:1237
65:1668 66:994 67:87 68:181 80:259 81:30
128:60 129:136 130:22 131:48 132:11 133:3
134:120 135:8 136:245 137:94 138:149 139:59
140:131 141:121 142:83 143:39 144:152 145:15
146:171 147:138 148:218 149:91 150:40 151:67
152:262 153:32 154:19 155:110 156:77 157:127
158:69 159:129 160:18 161:69 162:157 163:94
164:280 165:133 166:222 167:172 168:131 169:59
170:357 171:3 192:5477 193:2373 194:2084 195:949
196:395 198:3687 199:3237 200:2548 202:3250 203:4672
204:3431 205:2188 206:2765 207:2651 208:2666 209:2677
210:579 211:226 212:895 213:635 214:9 215:19
216:2985 217:461 218:43 219:41
End of report
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