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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 Wed 29 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112322
Prefixes after maximum aggregation: 73120
Unique aggregates announced to Internet: 52878
Total ASes present in the Internet Routing Table: 13147
Origin-only ASes present in the Internet Routing Table: 11387
Origin ASes announcing only one prefix: 5010
Transit ASes present in the Internet Routing Table: 1760
Transit-only ASes present in the Internet Routing Table: 61
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: 39
Number of addresses announced to Internet: 1177044688
Equivalent to 70 /8s, 40 /16s and 70 /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: 45299
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18068
Total APNIC prefixes after maximum aggregation: 10962
Prefixes being announced from the APNIC address blocks: 16536
Unique aggregates announced from the APNIC address blocks: 9854
APNIC Region origin ASes present in the Internet Routing Table: 1512
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: 13
Number of APNIC addresses announced to Internet: 88460132
Equivalent to 5 /8s, 69 /16s and 203 /24s
Percentage of available APNIC address space announced: 65.4
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: 75264
Total ARIN prefixes after maximum aggregation: 47736
Prefixes being announced from the ARIN address blocks: 53547
Unique aggregates announced from the ARIN address blocks: 16750
ARIN Region origin ASes present in the Internet Routing Table: 7752
ARIN Region origin ASes announcing only one prefix: 2464
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: 192692036
Equivalent to 11 /8s, 124 /16s and 63 /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: 18990
Total RIPE prefixes after maximum aggregation: 14422
Prefixes being announced from the RIPE address blocks: 15652
Unique aggregates announced from the RIPE address blocks: 10437
RIPE Region origin ASes present in the Internet Routing Table: 3822
RIPE Region origin ASes announcing only one prefix: 2047
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: 15
Number of RIPE addresses announced to Internet: 109980960
Equivalent to 6 /8s, 142 /16s and 45 /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 1272 1223 912 Telstra Pty Ltd
4538 480 1194 17 China Education and Research
2907 428 1861 369 SINET Japan
703 406 339 327 UUNET Technologies, Inc.
2764 396 360 361 connect.com.au pty ltd
7474 306 291 203 Optus Communications Pty Ltd
17557 287 19 111 Pakistan Telecom
4134 277 2084 94 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 245 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 225 1513 156 Korea Internet Exchange for "
9583 185 32 5 Satyam Infoway Ltd.,
4814 169 69 17 China Telecom (Group) - Beiji
7539 154 219 148 TANet2, sponsored by NSC, TAI
9768 148 386 77 Korea Telecom
7657 132 22 85 The Internet Group Limited
17676 131 2018 13 XTAGE CORPORATION
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 1018 2602 844 UUNET Technologies, Inc.
3301 396 908 348 TeliaNet Sweden
3215 265 599 165 France Telecom / &Equant
5515 263 783 175 Sonera Finland Autonomous Sys
3320 234 1947 180 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 132 9 45 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
5511 105 191 87 France Telecom
3246 104 300 98 Song Networks / Clinet
517 101 226 97 KPNQwest Germany GmbH
2830 97 251 73 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1998 8912 1429 UUNET Technologies, Inc.
7018 1284 7546 931 AT&T
3908 895 1640 485 Supernet, Inc.
1239 830 3442 662 Sprint
1 818 8168 454 BBN Planet
852 797 1175 446 Telus Advanced Communications
7046 673 936 453 UUNET Technologies, Inc.
4323 632 436 257 Time Warner Communications, I
690 583 79 380 Merit Network
209 579 1969 321 Qwest
7132 569 606 137 Southwestern Bell Internet Se
3549 516 854 321 Global Crossing
7843 492 356 74 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 397 2108 389 Verio, Inc.
15290 392 300 206 AT&T Canada IES
705 373 100 265 UUNET Technologies, Inc.
3741 346 731 237 The Internet Solution
6197 341 260 164 BellSouth Network Solutions,
2149 339 190 281 Performance Systems, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 480 463 China Education and Research
7132 569 432 Southwestern Bell Internet Se
7843 492 418 Adelphia Corp.
3908 895 410 Supernet, Inc.
4323 632 375 Time Warner Communications, I
1 818 364 BBN Planet
1221 1272 360 Telstra Pty Ltd
7018 1284 353 AT&T
852 797 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 579 258 Qwest
6347 337 258 SAVVIS Communications Corpora
7029 262 247 Alltel Information Services,
4355 277 240 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
7046 673 220 UUNET Technologies, Inc.
18566 219 215 Covad Communications
6198 314 209 BellSouth Network Solutions,
7303 271 209 Telecom Argentina Stet-France
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
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 /11:12 /12:34
/13:85 /14:231 /15:409 /16:7183 /17:1433 /18:2588
/19:7579 /20:7145 /21:5085 /22:7748 /23:9430 /24:62583
/25:207 /26:184 /27:82 /28:85 /29:48 /30:90
/31:1 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 624 1018 UUNET Technologies, Inc.
701 558 1998 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 299 673 UUNET Technologies, Inc.
7843 293 492 Adelphia Corp.
209 266 579 Qwest
1 257 818 BBN Planet
7029 247 262 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 236 396 TeliaNet Sweden
6198 231 314 BellSouth Network Solutions,
6517 221 243 Yipes Communications, Inc.
3549 216 516 Global Crossing
18566 215 219 Covad Communications
1239 210 830 Sprint
1580 204 217 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 24:774 25:1 32:40 38:8 40:6
44:1 57:13 61:227 62:197 63:1949 64:1223
65:1322 66:948 67:79 68:18 80:231 81:24
128:63 129:136 130:23 131:47 132:13 133:3
134:119 135:9 136:245 137:87 138:150 139:57
140:174 141:119 142:77 143:38 144:149 145:11
146:180 147:138 148:200 149:92 150:39 151:67
152:268 153:33 154:14 155:105 156:75 157:130
158:68 159:129 160:18 161:63 162:148 163:100
164:270 165:141 166:229 167:174 168:119 169:58
170:341 171:2 192:5496 193:2348 194:2097 195:836
196:438 198:3689 199:3234 200:2576 202:3126 203:4542
204:3224 205:2145 206:2547 207:2693 208:2661 209:2745
210:606 211:224 212:905 213:618 214:9 215:18
216:3001 217:458 218:28
End of report
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