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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 Tue 28 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112395
Prefixes after maximum aggregation: 73102
Unique aggregates announced to Internet: 52195
Total ASes present in the Internet Routing Table: 13139
Origin-only ASes present in the Internet Routing Table: 11376
Origin ASes announcing only one prefix: 5007
Transit ASes present in the Internet Routing Table: 1763
Transit-only ASes present in the Internet Routing Table: 58
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: 1182043468
Equivalent to 70 /8s, 116 /16s and 141 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45274
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17925
Total APNIC prefixes after maximum aggregation: 10897
Prefixes being announced from the APNIC address blocks: 16463
Unique aggregates announced from the APNIC address blocks: 9831
APNIC Region origin ASes present in the Internet Routing Table: 1510
APNIC Region origin ASes announcing only one prefix: 502
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: 88387936
Equivalent to 5 /8s, 68 /16s and 177 /24s
Percentage of available APNIC address space announced: 65.3
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: 75374
Total ARIN prefixes after maximum aggregation: 47816
Prefixes being announced from the ARIN address blocks: 53610
Unique aggregates announced from the ARIN address blocks: 16750
ARIN Region origin ASes present in the Internet Routing Table: 7757
ARIN Region origin ASes announcing only one prefix: 2465
ARIN Region transit ASes present in the Internet Routing Table: 767
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 192719556
Equivalent to 11 /8s, 124 /16s and 170 /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: 19096
Total RIPE prefixes after maximum aggregation: 14389
Prefixes being announced from the RIPE address blocks: 15762
Unique aggregates announced from the RIPE address blocks: 9780
RIPE Region origin ASes present in the Internet Routing Table: 3814
RIPE Region origin ASes announcing only one prefix: 2040
RIPE Region transit ASes present in the Internet Routing Table: 705
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 114990624
Equivalent to 6 /8s, 218 /16s and 158 /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 1270 1223 910 Telstra Pty Ltd
4538 480 1194 17 China Education and Research
2907 428 1861 369 SINET Japan
703 402 338 325 UUNET Technologies, Inc.
2764 398 361 363 connect.com.au pty ltd
7474 304 290 202 Optus Communications Pty Ltd
17557 277 19 110 Pakistan Telecom
4134 276 2068 93 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 247 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 227 1517 158 Korea Internet Exchange for "
9583 182 32 5 Satyam Infoway Ltd.,
4814 164 69 19 China Telecom (Group) - Beiji
7539 152 216 146 TANet2, sponsored by NSC, TAI
9768 146 386 76 Korea Telecom
7657 130 22 85 The Internet Group Limited
17676 130 2002 13 XTAGE CORPORATION
4713 115 1009 106 NTT Communications Corporatio
9800 114 186 22 CHINA UNICOM
4739 107 56 99 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1018 2602 844 UUNET Technologies, Inc.
3301 396 908 347 TeliaNet Sweden
3352 278 524 29 Ibernet, Internet Access Netw
3215 266 599 165 France Telecom / &Equant
5515 263 783 175 Sonera Finland Autonomous Sys
3320 235 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 4104 36 MobiFon S.A.
2856 126 789 116 BTnet UK Regional network
3303 117 546 116 Swisscom Ltd
3269 116 694 71 TELECOM ITALIA
8297 116 57 65 Teleglobe Autonomous System i
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 1996 8897 1427 UUNET Technologies, Inc.
7018 1284 7562 931 AT&T
3908 894 1640 485 Supernet, Inc.
1239 830 3442 661 Sprint
1 818 8168 454 BBN Planet
852 797 1175 446 Telus Advanced Communications
7046 677 936 457 UUNET Technologies, Inc.
4323 632 436 257 Time Warner Communications, I
690 583 79 383 Merit Network
209 580 1969 321 Qwest
7132 569 606 137 Southwestern Bell Internet Se
3549 518 854 323 Global Crossing
7843 485 356 74 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 398 2108 389 Verio, Inc.
15290 391 300 205 AT&T Canada IES
705 375 100 267 UUNET Technologies, Inc.
3741 346 731 237 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 569 432 Southwestern Bell Internet Se
7843 485 411 Adelphia Corp.
3908 894 409 Supernet, Inc.
4323 632 375 Time Warner Communications, I
1 818 364 BBN Planet
1221 1270 360 Telstra Pty Ltd
7018 1284 353 AT&T
852 797 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 580 259 Qwest
6347 337 258 SAVVIS Communications Corpora
3352 278 249 Ibernet, Internet Access Netw
7029 262 247 Alltel Information Services,
4355 268 231 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
7046 677 220 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 /11:12 /12:34
/13:85 /14:231 /15:409 /16:7198 /17:1431 /18:2589
/19:7578 /20:7144 /21:5077 /22:7743 /23:9431 /24:62685
/25:207 /26:181 /27:81 /28:80 /29:42 /30:84
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 627 1018 UUNET Technologies, Inc.
701 559 1996 UUNET Technologies, Inc.
3908 483 894 Supernet, Inc.
690 455 583 Merit Network
7066 380 475 Virginia Polytechnic Institut
7018 335 1284 AT&T
7046 303 677 UUNET Technologies, Inc.
7843 286 485 Adelphia Corp.
209 268 580 Qwest
1 257 818 BBN Planet
7029 247 262 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 237 396 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 12:513 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 63:1949 64:1220
65:1324 66:939 67:79 68:15 80:232 81:24
128:50 129:134 130:23 131:47 132:13 133:3
134:118 135:9 136:246 137:91 138:150 139:57
140:174 141:119 142:78 143:38 144:148 145:11
146:180 147:136 148:197 149:92 150:41 151:67
152:269 153:33 154:14 155:105 156:75 157:129
158:68 159:127 160:18 161:63 162:148 163:94
164:255 165:140 166:229 167:174 168:119 169:58
170:349 171:2 192:5500 193:2332 194:2110 195:940
196:438 198:3699 199:3234 200:2567 202:3107 203:4541
204:3246 205:2152 206:2577 207:2727 208:2661 209:2757
210:594 211:208 212:895 213:618 214:9 215:18
216:2979 217:472 218:28
End of report
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