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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 Fri 24 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112283
Prefixes after maximum aggregation: 73157
Unique aggregates announced to Internet: 52245
Total ASes present in the Internet Routing Table: 13123
Origin-only ASes present in the Internet Routing Table: 11363
Origin ASes announcing only one prefix: 4993
Transit ASes present in the Internet Routing Table: 1760
Transit-only ASes present in the Internet Routing Table: 53
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: 4
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 40
Number of addresses announced to Internet: 1184229084
Equivalent to 70 /8s, 149 /16s and 230 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45209
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18097
Total APNIC prefixes after maximum aggregation: 10976
Prefixes being announced from the APNIC address blocks: 16536
Unique aggregates announced from the APNIC address blocks: 9808
APNIC Region origin ASes present in the Internet Routing Table: 1514
APNIC Region origin ASes announcing only one prefix: 500
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: 88167008
Equivalent to 5 /8s, 65 /16s and 82 /24s
Percentage of available APNIC address space announced: 65.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75282
Total ARIN prefixes after maximum aggregation: 47784
Prefixes being announced from the ARIN address blocks: 53603
Unique aggregates announced from the ARIN address blocks: 16844
ARIN Region origin ASes present in the Internet Routing Table: 7745
ARIN Region origin ASes announcing only one prefix: 2451
ARIN Region transit ASes present in the Internet Routing Table: 761
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192682948
Equivalent to 11 /8s, 124 /16s and 27 /24s
Percentage of available ARIN address space announced: 71.8
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: 18903
Total RIPE prefixes after maximum aggregation: 14397
Prefixes being announced from the RIPE address blocks: 15556
Unique aggregates announced from the RIPE address blocks: 9785
RIPE Region origin ASes present in the Internet Routing Table: 3812
RIPE Region origin ASes announcing only one prefix: 2042
RIPE Region transit ASes present in the Internet Routing Table: 711
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 115037360
Equivalent to 6 /8s, 219 /16s and 84 /24s
Percentage of available RIPE address space announced: 76.2
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
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 1271 1223 913 Telstra Pty Ltd
4538 480 1194 17 China Education and Research
2907 427 1861 368 SINET Japan
703 402 336 323 UUNET Technologies, Inc.
2764 398 361 363 connect.com.au pty ltd
7474 308 291 206 Optus Communications Pty Ltd
17557 281 19 110 Pakistan Telecom
4134 280 2076 95 Data Communications Bureau
9443 264 44 63 Primus Telecommunications
4755 248 109 74 Videsh Sanchar Nigam Ltd. Aut
4766 223 1516 155 Korea Internet Exchange for "
9583 180 32 5 Satyam Infoway Ltd.,
4814 161 68 17 China Telecom (Group) - Beiji
7539 147 215 141 TANet2, sponsored by NSC, TAI
9768 146 386 76 Korea Telecom
7657 131 22 87 The Internet Group Limited
17676 128 1970 11 XTAGE CORPORATION
4780 116 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
9800 115 4223 12 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1021 2610 847 UUNET Technologies, Inc.
3301 394 908 346 TeliaNet Sweden
3215 265 599 164 France Telecom / &Equant
5515 263 775 175 Sonera Finland Autonomous Sys
3320 235 1948 181 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 208 430 205 SWIPnet Swedish IP Network
5400 200 83 95 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 178 290 124 LANLINK autonomous system
8708 148 23 140 Romania Data Systems S.A.
12302 133 9 46 MobiFon S.A.
2856 126 789 116 BTnet UK Regional network
3303 116 546 115 Swisscom Ltd
8297 116 57 65 Teleglobe Autonomous System i
3269 115 694 71 TELECOM ITALIA
5511 105 191 87 France Telecom
517 100 226 96 KPNQwest Germany GmbH
2830 100 252 76 UUNET Dual-Homed customers
2874 97 84 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1995 8921 1419 UUNET Technologies, Inc.
7018 1293 7572 940 AT&T
3908 893 1640 485 Supernet, Inc.
1239 827 3441 658 Sprint
1 805 8168 454 BBN Planet
852 741 1176 448 Telus Advanced Communications
7046 681 937 461 UUNET Technologies, Inc.
4323 631 436 257 Time Warner Communications, I
690 587 79 383 Merit Network
209 581 1968 321 Qwest
7132 568 606 136 Southwestern Bell Internet Se
3549 518 854 323 Global Crossing
7843 509 363 60 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 397 2110 388 Verio, Inc.
15290 392 300 204 AT&T Canada IES
705 375 100 267 UUNET Technologies, Inc.
2149 346 191 287 Performance Systems, Inc.
3741 345 731 236 The Internet Solution
6197 341 260 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 480 463 China Education and Research
7843 509 449 Adelphia Corp.
7132 568 432 Southwestern Bell Internet Se
3908 893 408 Supernet, Inc.
4323 631 374 Time Warner Communications, I
1221 1271 358 Telstra Pty Ltd
7018 1293 353 AT&T
1 805 351 BBN Planet
852 741 293 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 581 260 Qwest
6347 337 258 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
4355 277 239 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
7046 681 220 UUNET Technologies, Inc.
18566 218 214 Covad Communications
6198 314 209 BellSouth Network Solutions,
6517 243 207 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55555 RESERVED 136.162.254.0/24 7046 UUNET Technologies,
25780 UNALLOCATED 198.153.131.0/24 1 BBN Planet
25780 UNALLOCATED 198.153.231.0/24 1 BBN Planet
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 1103 SURFnet BV
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 BBN Planet
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.31.126.0/23 1103 SURFnet BV
192.31.128.0/21 1103 SURFnet BV
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.
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 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 /8:21 /9:6 /10:7 /11:13 /12:33
/13:84 /14:231 /15:408 /16:7205 /17:1434 /18:2590
/19:7573 /20:7153 /21:5079 /22:7761 /23:9401 /24:62502
/25:222 /26:190 /27:86 /28:90 /29:49 /30:92
/31:0 /32:53
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 627 1021 UUNET Technologies, Inc.
701 551 1995 UUNET Technologies, Inc.
3908 482 893 Supernet, Inc.
690 459 587 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 338 1293 AT&T
7046 307 681 UUNET Technologies, Inc.
7843 304 509 Adelphia Corp.
209 268 581 Qwest
1 249 805 BBN Planet
7029 246 261 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 237 394 TeliaNet Sweden
6198 231 314 BellSouth Network Solutions,
6517 221 243 Yipes Communications, Inc.
3549 216 518 Global Crossing
18566 214 218 Covad Communications
1239 210 827 Sprint
1580 204 216 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:509 13:10 15:2 17:6
20:2 24:777 25:1 32:40 38:8 40:6
44:1 57:13 61:226 62:200 63:1963 64:1212
65:1315 66:939 67:79 68:14 80:235 81:25
128:59 129:134 130:23 131:47 132:13 133:3
134:118 135:9 136:252 137:91 138:150 139:57
140:173 141:120 142:78 143:38 144:148 145:11
146:174 147:136 148:174 149:93 150:42 151:61
152:269 153:33 154:14 155:104 156:75 157:127
158:69 159:127 160:18 161:63 162:147 163:100
164:270 165:139 166:229 167:174 168:122 169:58
170:352 171:2 192:5497 193:2330 194:2107 195:808
196:409 198:3699 199:3227 200:2576 202:3087 203:4569
204:3247 205:2157 206:2581 207:2685 208:2657 209:2764
210:593 211:224 212:870 213:618 214:9 215:18
216:3006 217:462 218:19
End of report
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