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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 Thu 30 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112987
Prefixes after maximum aggregation: 73240
Unique aggregates announced to Internet: 52922
Total ASes present in the Internet Routing Table: 13148
Origin-only ASes present in the Internet Routing Table: 11397
Origin ASes announcing only one prefix: 5012
Transit ASes present in the Internet Routing Table: 1751
Transit-only ASes present in the Internet Routing Table: 57
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: 1
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1177710412
Equivalent to 70 /8s, 50 /16s and 111 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45800
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18102
Total APNIC prefixes after maximum aggregation: 11009
Prefixes being announced from the APNIC address blocks: 16572
Unique aggregates announced from the APNIC address blocks: 9875
APNIC Region origin ASes present in the Internet Routing Table: 1512
APNIC Region origin ASes announcing only one prefix: 497
APNIC Region transit ASes present in the Internet Routing Table: 268
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 88953440
Equivalent to 5 /8s, 77 /16s and 82 /24s
Percentage of available APNIC address space announced: 65.8
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: 75661
Total ARIN prefixes after maximum aggregation: 47787
Prefixes being announced from the ARIN address blocks: 53889
Unique aggregates announced from the ARIN address blocks: 16723
ARIN Region origin ASes present in the Internet Routing Table: 7763
ARIN Region origin ASes announcing only one prefix: 2469
ARIN Region transit ASes present in the Internet Routing Table: 760
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 192850372
Equivalent to 11 /8s, 126 /16s and 169 /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: 19224
Total RIPE prefixes after maximum aggregation: 14444
Prefixes being announced from the RIPE address blocks: 15909
Unique aggregates announced from the RIPE address blocks: 10503
RIPE Region origin ASes present in the Internet Routing Table: 3816
RIPE Region origin ASes announcing only one prefix: 2046
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: 109926944
Equivalent to 6 /8s, 141 /16s and 90 /24s
Percentage of available RIPE address space announced: 72.8
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 1270 1223 911 Telstra Pty Ltd
4538 475 1194 17 China Education and Research
2907 428 1861 369 SINET Japan
703 406 339 326 UUNET Technologies, Inc.
2764 396 360 361 connect.com.au pty ltd
7474 308 292 204 Optus Communications Pty Ltd
17557 287 19 111 Pakistan Telecom
4134 277 2084 94 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 247 109 77 Videsh Sanchar Nigam Ltd. Aut
4766 225 1513 156 Korea Internet Exchange for "
9583 179 32 5 Satyam Infoway Ltd.,
4814 169 69 17 China Telecom (Group) - Beiji
7539 151 217 145 TANet2, sponsored by NSC, TAI
9768 146 386 76 Korea Telecom
17676 137 2114 16 XTAGE CORPORATION
7657 133 22 85 The Internet Group Limited
4780 116 186 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 1007 2601 835 UUNET Technologies, Inc.
3301 390 908 341 TeliaNet Sweden
3352 280 524 29 Ibernet, Internet Access Netw
3215 266 599 165 France Telecom / &Equant
5515 263 783 175 Sonera Finland Autonomous Sys
3320 236 1947 181 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 206 430 203 SWIPnet Swedish IP Network
5400 200 83 95 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 179 290 125 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 117 546 116 Swisscom Ltd
8297 116 57 65 Teleglobe Autonomous System i
3269 114 692 70 TELECOM ITALIA
3233 106 7 52 RNC - Romanian Natioanal R&D
5511 105 191 87 France Telecom
3246 103 295 98 Song Networks / Clinet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1988 8894 1419 UUNET Technologies, Inc.
7018 1286 7565 932 AT&T
3908 893 1640 483 Supernet, Inc.
1239 827 3438 660 Sprint
1 813 8168 454 BBN Planet
852 797 1175 446 Telus Advanced Communications
7046 666 936 447 UUNET Technologies, Inc.
4323 634 436 257 Time Warner Communications, I
690 583 79 380 Merit Network
209 579 1969 322 Qwest
7132 569 606 137 Southwestern Bell Internet Se
705 548 120 270 UUNET Technologies, Inc.
3549 517 854 322 Global Crossing
7843 500 357 70 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 397 2108 389 Verio, Inc.
15290 391 300 205 AT&T Canada IES
3741 345 731 236 The Internet Solution
2149 343 191 284 Performance Systems, Inc.
6197 340 245 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 475 458 China Education and Research
7132 569 432 Southwestern Bell Internet Se
7843 500 430 Adelphia Corp.
3908 893 410 Supernet, Inc.
4323 634 377 Time Warner Communications, I
1221 1270 359 Telstra Pty Ltd
1 813 359 BBN Planet
7018 1286 354 AT&T
852 797 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
705 548 278 UUNET Technologies, Inc.
4151 285 270 USDA
6347 337 258 SAVVIS Communications Corpora
209 579 257 Qwest
3352 280 251 Ibernet, Internet Access Netw
7029 262 247 Alltel Information Services,
4355 278 240 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
7046 666 219 UUNET Technologies, Inc.
18566 222 218 Covad Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
192.44.0.0/19 702 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 /11:12 /12:34
/13:85 /14:231 /15:410 /16:7212 /17:1432 /18:2585
/19:7583 /20:7153 /21:5086 /22:7768 /23:9462 /24:63141
/25:216 /26:186 /27:84 /28:90 /29:48 /30:93
/31:1 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 615 1007 UUNET Technologies, Inc.
701 557 1988 UUNET Technologies, Inc.
3908 483 893 Supernet, Inc.
690 455 583 Merit Network
7066 380 475 Virginia Polytechnic Institut
705 357 548 UUNET Technologies, Inc.
7018 337 1286 AT&T
7843 300 500 Adelphia Corp.
7046 292 666 UUNET Technologies, Inc.
209 265 579 Qwest
1 255 813 BBN Planet
7029 247 262 Alltel Information Services,
6197 245 340 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 237 390 TeliaNet Sweden
6198 231 317 BellSouth Network Solutions,
6517 221 243 Yipes Communications, Inc.
18566 218 222 Covad Communications
3549 216 517 Global Crossing
1239 210 827 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:512 13:10 15:2 17:6
20:2 24:779 25:1 32:40 38:8 40:6
44:1 57:13 61:227 62:195 63:1936 64:1226
65:1493 66:959 67:79 68:18 80:232 81:24
128:60 129:138 130:23 131:47 132:13 133:3
134:119 135:8 136:246 137:91 138:150 139:57
140:174 141:119 142:77 143:38 144:149 145:11
146:180 147:138 148:198 149:92 150:39 151:67
152:268 153:33 154:14 155:104 156:75 157:131
158:68 159:128 160:18 161:64 162:147 163:97
164:271 165:141 166:230 167:174 168:119 169:58
170:349 171:2 192:5486 193:2397 194:2128 195:968
196:438 198:3710 199:3230 200:2555 202:3121 203:4573
204:3260 205:2154 206:2584 207:2711 208:2674 209:2758
210:601 211:225 212:921 213:624 214:9 215:18
216:3009 217:458 218:28
End of report
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