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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 Sat 22 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116899
Prefixes after maximum aggregation: 75506
Unique aggregates announced to Internet: 54495
Total ASes present in the Internet Routing Table: 13270
Origin-only ASes present in the Internet Routing Table: 11498
Origin ASes announcing only one prefix: 5078
Transit ASes present in the Internet Routing Table: 1772
Transit-only ASes present in the Internet Routing Table: 51
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
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: 1191187420
Equivalent to 71 /8s, 0 /16s and 19 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 49017
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18467
Total APNIC prefixes after maximum aggregation: 11047
Prefixes being announced from the APNIC address blocks: 16976
Unique aggregates announced from the APNIC address blocks: 10434
APNIC Region origin ASes present in the Internet Routing Table: 1546
APNIC Region origin ASes announcing only one prefix: 506
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87244896
Equivalent to 5 /8s, 51 /16s and 64 /24s
Percentage of available APNIC address space announced: 64.5
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: 79193
Total ARIN prefixes after maximum aggregation: 49906
Prefixes being announced from the ARIN address blocks: 54658
Unique aggregates announced from the ARIN address blocks: 17923
ARIN Region origin ASes present in the Internet Routing Table: 7817
ARIN Region origin ASes announcing only one prefix: 2505
ARIN Region transit ASes present in the Internet Routing Table: 767
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188835668
Equivalent to 11 /8s, 65 /16s and 103 /24s
Percentage of available ARIN address space announced: 70.3
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: 19238
Total RIPE prefixes after maximum aggregation: 14553
Prefixes being announced from the RIPE address blocks: 15940
Unique aggregates announced from the RIPE address blocks: 10570
RIPE Region origin ASes present in the Internet Routing Table: 3857
RIPE Region origin ASes announcing only one prefix: 2067
RIPE Region transit ASes present in the Internet Routing Table: 716
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 111787040
Equivalent to 6 /8s, 169 /16s and 188 /24s
Percentage of available RIPE address space announced: 74.0
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 1259 1222 906 Telstra Pty Ltd
4538 419 1194 16 China Education and Research
703 418 357 334 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 367 358 336 connect.com.au pty ltd
7474 311 292 208 Optus Communications Pty Ltd
17557 301 20 114 Pakistan Telecom
4755 295 115 80 Videsh Sanchar Nigam Ltd. Aut
4134 290 2132 102 Data Communications Bureau
9443 251 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 196 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 175 32 5 Satyam Infoway Ltd.,
17676 150 2322 23 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 87 The Internet Group Limited
9800 116 191 24 CHINA UNICOM
4780 112 186 39 Digital United Inc.
4621 111 11 61 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1019 2617 845 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 281 537 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 203 83 94 Concert European Core Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 133 546 132 Swisscom Ltd
2856 125 786 115 BTnet UK Regional network
12302 125 18 32 MobiFon S.A.
3269 113 692 70 TELECOM ITALIA
8297 111 55 64 Teleglobe Autonomous System i
3246 108 300 103 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2874 349 2326 Performance Systems, Inc.
701 2016 9242 1405 UUNET Technologies, Inc.
7018 1284 7452 927 AT&T
3908 911 1642 497 Supernet, Inc.
1239 830 3363 655 Sprint
705 803 188 277 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 674 1173 449 Telus Advanced Communications
4323 631 438 259 Time Warner Communications, I
209 611 1959 342 Qwest
7046 597 860 384 UUNET Technologies, Inc.
7843 597 375 60 Adelphia Corp.
690 583 80 371 Merit Network
7132 577 659 134 Southwestern Bell Internet Se
174 554 4608 36 PSINet Inc.
7066 476 202 249 Virginia Polytechnic Institut
3549 457 841 321 Global Crossing
2914 394 2101 386 Verio, Inc.
15290 384 299 198 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 2016 611 UUNET Technologies, Inc.
7843 597 537 Adelphia Corp.
705 803 526 UUNET Technologies, Inc.
174 554 518 PSINet Inc.
7132 577 443 Southwestern Bell Internet Se
3908 911 414 Supernet, Inc.
4538 419 403 China Education and Research
4323 631 372 Time Warner Communications, I
7018 1284 357 AT&T
1221 1259 353 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 611 269 Qwest
6347 341 263 SAVVIS Communications Corpora
3352 281 254 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 300 248 EarthLink, Inc.
7029 263 248 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 /12:36
/13:90 /14:236 /15:421 /16:7261 /17:1459 /18:2633
/19:7673 /20:7274 /21:5104 /22:7852 /23:9556 /24:66563
/25:195 /26:171 /27:83 /28:78 /29:48 /30:81
/31:1 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2336 2874 Performance Systems, Inc.
702 626 1019 UUNET Technologies, Inc.
705 598 803 UUNET Technologies, Inc.
701 574 2016 UUNET Technologies, Inc.
3908 499 911 Supernet, Inc.
174 461 554 PSINet Inc.
690 461 583 Merit Network
7066 381 476 Virginia Polytechnic Institut
7843 381 597 Adelphia Corp.
7018 345 1284 AT&T
209 276 611 Qwest
6197 248 346 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 241 597 UUNET Technologies, Inc.
3301 238 402 TeliaNet Sweden
6198 234 321 BellSouth Network Solutions,
18566 221 225 Covad Communications
1239 218 830 Sprint
6517 216 238 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:510 13:10 15:2 17:6
20:2 24:791 25:1 32:41 38:2639 40:6
44:1 57:13 61:267 62:206 63:1920 64:1236
65:1663 66:996 67:87 68:177 80:258 81:30
128:60 129:140 130:24 131:49 132:11 133:3
134:120 135:8 136:244 137:94 138:149 139:60
140:142 141:121 142:83 143:37 144:151 145:14
146:174 147:138 148:217 149:91 150:40 151:127
152:262 153:33 154:19 155:101 156:76 157:127
158:69 159:127 160:18 161:69 162:154 163:103
164:280 165:133 166:229 167:171 168:131 169:59
170:355 171:3 192:5485 193:2369 194:2081 195:957
196:395 198:3683 199:3237 200:2533 202:3249 203:4681
204:3430 205:2184 206:2737 207:2618 208:2677 209:2674
210:580 211:223 212:903 213:635 214:9 215:19
216:2980 217:462 218:39 219:41
End of report
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