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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 07 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113716
Prefixes after maximum aggregation: 73297
Unique aggregates announced to Internet: 52558
Total ASes present in the Internet Routing Table: 13200
Origin-only ASes present in the Internet Routing Table: 11444
Origin ASes announcing only one prefix: 5028
Transit ASes present in the Internet Routing Table: 1756
Transit-only ASes present in the Internet Routing Table: 55
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: 6
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: 1180075724
Equivalent to 70 /8s, 86 /16s and 134 /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: 46364
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18341
Total APNIC prefixes after maximum aggregation: 11027
Prefixes being announced from the APNIC address blocks: 16789
Unique aggregates announced from the APNIC address blocks: 9821
APNIC Region origin ASes present in the Internet Routing Table: 1528
APNIC Region origin ASes announcing only one prefix: 501
APNIC Region transit ASes present in the Internet Routing Table: 265
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90120032
Equivalent to 5 /8s, 95 /16s and 31 /24s
Percentage of available APNIC address space announced: 66.6
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: 76078
Total ARIN prefixes after maximum aggregation: 47764
Prefixes being announced from the ARIN address blocks: 54242
Unique aggregates announced from the ARIN address blocks: 16646
ARIN Region origin ASes present in the Internet Routing Table: 7786
ARIN Region origin ASes announcing only one prefix: 2477
ARIN Region transit ASes present in the Internet Routing Table: 763
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 193141316
Equivalent to 11 /8s, 131 /16s and 26 /24s
Percentage of available ARIN address space announced: 72.0
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: 19292
Total RIPE prefixes after maximum aggregation: 14506
Prefixes being announced from the RIPE address blocks: 15995
Unique aggregates announced from the RIPE address blocks: 10533
RIPE Region origin ASes present in the Internet Routing Table: 3832
RIPE Region origin ASes announcing only one prefix: 2050
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: 16
Number of RIPE addresses announced to Internet: 110191136
Equivalent to 6 /8s, 145 /16s and 98 /24s
Percentage of available RIPE address space announced: 73.0
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 904 Telstra Pty Ltd
4538 489 1258 18 China Education and Research
703 401 349 322 UUNET Technologies, Inc.
2907 394 1861 367 SINET Japan
2764 378 359 344 connect.com.au pty ltd
7474 310 291 203 Optus Communications Pty Ltd
17557 295 20 107 Pakistan Telecom
4134 289 2132 102 Data Communications Bureau
4755 271 114 77 Videsh Sanchar Nigam Ltd. Aut
9443 269 45 65 Primus Telecommunications
4766 225 1516 156 Korea Internet Exchange for "
4814 184 71 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 180 32 5 Satyam Infoway Ltd.,
9768 147 387 76 Korea Telecom
7539 146 216 140 TANet2, sponsored by NSC, TAI
17676 146 2258 23 XTAGE CORPORATION
7657 136 22 86 The Internet Group Limited
4780 116 186 39 Digital United Inc.
9800 115 187 23 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1014 2620 840 UUNET Technologies, Inc.
3301 397 908 348 TeliaNet Sweden
3352 278 537 27 Ibernet, Internet Access Netw
5515 266 783 176 Sonera Finland Autonomous Sys
3215 263 598 162 France Telecom / &Equant
680 234 2149 230 DFN-IP service G-WiN
3320 233 1948 186 Deutsche Telekom AG
1257 206 430 203 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 190 290 128 LANLINK autonomous system
786 180 1873 179 The JANET IP Service
8708 147 23 139 Romania Data Systems S.A.
12302 130 10 46 MobiFon S.A.
2856 125 789 115 BTnet UK Regional network
3303 117 546 116 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 107 300 101 Song Networks / Clinet
3233 103 7 53 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
701 2017 9085 1427 UUNET Technologies, Inc.
7018 1297 7548 937 AT&T
3908 900 1642 493 Supernet, Inc.
1239 818 3430 652 Sprint
1 803 8148 449 GENUITY
705 802 181 279 UUNET Technologies, Inc.
852 802 1192 451 Telus Advanced Communications
7046 632 901 424 UUNET Technologies, Inc.
4323 627 436 257 Time Warner Communications, I
209 604 1973 337 Qwest
690 584 80 372 Merit Network
7132 572 609 136 Southwestern Bell Internet Se
7843 512 359 77 Adelphia Corp.
3549 504 857 324 Global Crossing
7066 476 202 249 Virginia Polytechnic Institut
2914 394 2108 387 Verio, Inc.
15290 388 299 202 AT&T Canada IES
3741 344 731 236 The Internet Solution
6197 344 246 169 BellSouth Network Solutions,
2149 341 190 282 Performance Systems, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
705 802 523 UUNET Technologies, Inc.
4538 489 471 China Education and Research
7132 572 436 Southwestern Bell Internet Se
7843 512 435 Adelphia Corp.
3908 900 407 Supernet, Inc.
4323 627 370 Time Warner Communications, I
7018 1297 360 AT&T
1221 1259 355 Telstra Pty Ltd
1 803 354 GENUITY
852 802 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
209 604 267 Qwest
6347 341 262 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
7029 263 248 Alltel Information Services,
4355 285 242 EarthLink, Inc.
7066 476 227 Virginia Polytechnic Institut
18566 222 218 Covad Communications
6198 320 215 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65011 PRIVATE 207.8.204.0/24 4969 Net Access
65011 PRIVATE 207.8.227.0/24 4969 Net Access
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65011 PRIVATE 207.106.58.0/24 4969 Net Access
65011 PRIVATE 207.106.90.0/24 4969 Net Access
65011 PRIVATE 207.106.122.0/24 4969 Net Access
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 GENUITY
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
/13:86 /14:233 /15:415 /16:7236 /17:1445 /18:2606
/19:7598 /20:7208 /21:5097 /22:7827 /23:9540 /24:63608
/25:214 /26:180 /27:84 /28:85 /29:47 /30:88
/31:1 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 619 1014 UUNET Technologies, Inc.
705 598 802 UUNET Technologies, Inc.
701 567 2017 UUNET Technologies, Inc.
3908 486 900 Supernet, Inc.
690 462 584 Merit Network
7066 381 476 Virginia Polytechnic Institut
7018 344 1297 AT&T
7843 311 512 Adelphia Corp.
209 272 604 Qwest
7046 272 632 UUNET Technologies, Inc.
1 261 803 GENUITY
7029 248 263 Alltel Information Services,
6197 247 344 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 397 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
6517 218 240 Yipes Communications, Inc.
18566 218 222 Covad Communications
1239 210 818 Sprint
1580 203 233 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:510 13:10 15:2 17:6
20:2 24:784 25:1 32:41 38:8 40:6
44:1 57:13 61:251 62:200 63:1943 64:1242
65:1613 66:940 67:83 68:162 80:238 81:30
128:61 129:137 130:23 131:51 132:11 133:3
134:118 135:8 136:244 137:91 138:150 139:58
140:175 141:120 142:82 143:37 144:151 145:13
146:174 147:138 148:206 149:92 150:40 151:97
152:268 153:35 154:14 155:102 156:76 157:133
158:69 159:127 160:18 161:69 162:154 163:96
164:275 165:130 166:229 167:171 168:119 169:58
170:358 171:2 192:5490 193:2389 194:2150 195:952
196:433 198:3708 199:3229 200:2510 202:3149 203:4579
204:3262 205:2178 206:2575 207:2729 208:2672 209:2754
210:604 211:224 212:930 213:632 214:9 215:19
216:3017 217:461 218:39 219:41
End of report
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