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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 Mon 27 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112302
Prefixes after maximum aggregation: 73052
Unique aggregates announced to Internet: 52100
Total ASes present in the Internet Routing Table: 13126
Origin-only ASes present in the Internet Routing Table: 11366
Origin ASes announcing only one prefix: 5008
Transit ASes present in the Internet Routing Table: 1760
Transit-only ASes present in the Internet Routing Table: 60
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: 1183603548
Equivalent to 70 /8s, 140 /16s and 91 /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: 45319
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17875
Total APNIC prefixes after maximum aggregation: 10871
Prefixes being announced from the APNIC address blocks: 16382
Unique aggregates announced from the APNIC address blocks: 9744
APNIC Region origin ASes present in the Internet Routing Table: 1505
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 270
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 88169824
Equivalent to 5 /8s, 65 /16s and 93 /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: 75336
Total ARIN prefixes after maximum aggregation: 47789
Prefixes being announced from the ARIN address blocks: 53594
Unique aggregates announced from the ARIN address blocks: 16753
ARIN Region origin ASes present in the Internet Routing Table: 7752
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: 192713156
Equivalent to 11 /8s, 124 /16s and 145 /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: 19091
Total RIPE prefixes after maximum aggregation: 14392
Prefixes being announced from the RIPE address blocks: 15747
Unique aggregates announced from the RIPE address blocks: 9790
RIPE Region origin ASes present in the Internet Routing Table: 3809
RIPE Region origin ASes announcing only one prefix: 2042
RIPE Region transit ASes present in the Internet Routing Table: 704
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 114984752
Equivalent to 6 /8s, 218 /16s and 135 /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 427 1845 368 SINET Japan
703 404 338 326 UUNET Technologies, Inc.
2764 398 361 363 connect.com.au pty ltd
7474 307 291 205 Optus Communications Pty Ltd
17557 282 19 110 Pakistan Telecom
4134 276 2076 93 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 246 109 74 Videsh Sanchar Nigam Ltd. Aut
4766 227 1517 158 Korea Internet Exchange for "
9583 180 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 236 1948 182 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 103 300 97 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 1285 7562 932 AT&T
3908 898 1640 486 Supernet, Inc.
1239 829 3442 660 Sprint
1 816 8168 454 BBN Planet
852 737 1176 445 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 568 606 136 Southwestern Bell Internet Se
3549 517 854 323 Global Crossing
7843 485 356 74 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 397 2108 388 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
7132 568 432 Southwestern Bell Internet Se
3908 898 412 Supernet, Inc.
7843 485 411 Adelphia Corp.
4323 632 375 Time Warner Communications, I
1 816 362 BBN Planet
1221 1269 358 Telstra Pty Ltd
7018 1285 353 AT&T
852 737 292 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 /8:21 /9:6 /10:7 /11:13 /12:34
/13:85 /14:231 /15:409 /16:7196 /17:1430 /18:2590
/19:7572 /20:7146 /21:5076 /22:7730 /23:9422 /24:62617
/25:209 /26:181 /27:81 /28:81 /29:42 /30:86
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 625 1019 UUNET Technologies, Inc.
701 559 1997 UUNET Technologies, Inc.
3908 487 898 Supernet, Inc.
690 455 583 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 336 1285 AT&T
7046 304 678 UUNET Technologies, Inc.
7843 286 485 Adelphia Corp.
209 268 583 Qwest
1 255 816 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 215 517 Global Crossing
18566 215 219 Covad Communications
1239 210 829 Sprint
1580 204 216 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:513 13:10 15:2 17:6
20:2 24:772 25:1 32:40 38:8 40:6
44:1 57:13 61:225 62:200 63:1955 64:1231
65:1324 66:941 67:79 68:15 80:235 81:23
128:63 129:134 130:22 131:47 132:13 133:3
134:118 135:9 136:245 137:91 138:150 139:57
140:173 141:119 142:78 143:38 144:148 145:11
146:180 147:136 148:197 149:92 150:41 151:67
152:269 153:33 154:14 155:105 156:75 157:128
158:68 159:127 160:18 161:63 162:148 163:100
164:251 165:141 166:229 167:174 168:117 169:58
170:350 171:2 192:5494 193:2326 194:2126 195:942
196:437 198:3694 199:3230 200:2584 202:3054 203:4526
204:3249 205:2147 206:2573 207:2691 208:2654 209:2746
210:598 211:222 212:883 213:618 214:9 215:18
216:2994 217:470 218:24
End of report
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