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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 Sun 26 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112469
Prefixes after maximum aggregation: 73186
Unique aggregates announced to Internet: 52751
Total ASes present in the Internet Routing Table: 13127
Origin-only ASes present in the Internet Routing Table: 11367
Origin ASes announcing only one prefix: 5005
Transit ASes present in the Internet Routing Table: 1760
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 3
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: 1180400092
Equivalent to 70 /8s, 91 /16s and 121 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45344
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18028
Total APNIC prefixes after maximum aggregation: 11000
Prefixes being announced from the APNIC address blocks: 16552
Unique aggregates announced from the APNIC address blocks: 10372
APNIC Region origin ASes present in the Internet Routing Table: 1510
APNIC Region origin ASes announcing only one prefix: 499
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: 84907744
Equivalent to 5 /8s, 15 /16s and 150 /24s
Percentage of available APNIC address space announced: 62.8
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: 75341
Total ARIN prefixes after maximum aggregation: 47788
Prefixes being announced from the ARIN address blocks: 53625
Unique aggregates announced from the ARIN address blocks: 16756
ARIN Region origin ASes present in the Internet Routing Table: 7749
ARIN Region origin ASes announcing only one prefix: 2462
ARIN Region transit ASes present in the Internet Routing Table: 765
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 192709828
Equivalent to 11 /8s, 124 /16s and 132 /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: 19100
Total RIPE prefixes after maximum aggregation: 14398
Prefixes being announced from the RIPE address blocks: 15755
Unique aggregates announced from the RIPE address blocks: 9800
RIPE Region origin ASes present in the Internet Routing Table: 3812
RIPE Region origin ASes announcing only one prefix: 2044
RIPE Region transit ASes present in the Internet Routing Table: 706
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 115038000
Equivalent to 6 /8s, 219 /16s and 87 /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 1269 1223 911 Telstra Pty Ltd
4538 480 1194 17 China Education and Research
2907 426 1845 367 SINET Japan
703 405 338 326 UUNET Technologies, Inc.
2764 398 361 363 connect.com.au pty ltd
7474 307 291 205 Optus Communications Pty Ltd
17557 280 19 111 Pakistan Telecom
4134 276 2076 93 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 248 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 227 1517 158 Korea Internet Exchange for "
9583 182 32 5 Satyam Infoway Ltd.,
4814 160 68 16 China Telecom (Group) - Beiji
7539 154 218 148 TANet2, sponsored by NSC, TAI
9768 146 386 76 Korea Telecom
17676 129 1986 12 XTAGE CORPORATION
7657 128 22 85 The Internet Group Limited
4780 117 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
9800 114 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1019 2610 845 UUNET Technologies, Inc.
3301 394 908 346 TeliaNet Sweden
3352 281 524 29 Ibernet, Internet Access Netw
3215 266 599 165 France Telecom / &Equant
5515 263 783 175 Sonera Finland Autonomous Sys
3320 233 1948 180 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 132 9 45 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
3246 104 300 98 Song Networks / Clinet
517 100 226 96 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1997 8914 1428 UUNET Technologies, Inc.
7018 1284 7562 932 AT&T
3908 895 1640 485 Supernet, Inc.
1239 830 3442 661 Sprint
1 818 8168 454 BBN Planet
852 738 1160 446 Telus Advanced Communications
7046 678 937 458 UUNET Technologies, Inc.
4323 632 436 257 Time Warner Communications, I
209 583 1970 323 Qwest
690 583 79 383 Merit Network
7132 569 606 137 Southwestern Bell Internet Se
3549 518 854 323 Global Crossing
7843 510 363 61 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 398 2108 389 Verio, Inc.
15290 391 300 205 AT&T Canada IES
705 370 99 262 UUNET Technologies, Inc.
3741 345 731 236 The Internet Solution
2149 343 191 284 Performance Systems, Inc.
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 510 449 Adelphia Corp.
7132 569 432 Southwestern Bell Internet Se
3908 895 410 Supernet, Inc.
4323 632 375 Time Warner Communications, I
1 818 364 BBN Planet
1221 1269 358 Telstra Pty Ltd
7018 1284 352 AT&T
852 738 292 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 583 260 Qwest
6347 337 258 SAVVIS Communications Corpora
3352 281 252 Ibernet, Internet Access Netw
7029 262 247 Alltel Information Services,
4355 271 234 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
7046 678 220 UUNET Technologies, Inc.
18566 219 215 Covad Communications
6198 314 209 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 /8:20 /9:6 /10:7 /11:13 /12:34
/13:85 /14:231 /15:409 /16:7197 /17:1431 /18:2589
/19:7575 /20:7155 /21:5085 /22:7739 /23:9439 /24:62701
/25:219 /26:186 /27:82 /28:88 /29:47 /30:91
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 625 1019 UUNET Technologies, Inc.
701 558 1997 UUNET Technologies, Inc.
3908 484 895 Supernet, Inc.
690 455 583 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 336 1284 AT&T
7046 304 678 UUNET Technologies, Inc.
7843 304 510 Adelphia Corp.
209 268 583 Qwest
1 257 818 BBN Planet
7029 247 262 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 215 219 Covad Communications
1239 210 830 Sprint
1580 204 216 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:512 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 63:1956 64:1230
65:1323 66:941 67:79 68:15 80:234 81:24
128:63 129:134 130:23 131:47 132:13 133:3
134:118 135:9 136:245 137:91 138:150 139:57
140:173 141:119 142:78 143:38 144:148 145:11
146:180 147:136 148:197 149:92 150:17 151:67
152:269 153:33 154:14 155:105 156:75 157:128
158:69 159:127 160:18 161:63 162:148 163:100
164:254 165:137 166:228 167:171 168:113 169:58
170:350 171:2 192:5493 193:2328 194:2131 195:941
196:437 198:3697 199:3231 200:2579 202:3127 203:4552
204:3249 205:2148 206:2575 207:2694 208:2653 209:2746
210:600 211:222 212:880 213:618 214:9 215:18
216:2999 217:469 218:24
End of report
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