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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 08 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 112068
Prefixes after maximum aggregation: 72970
Unique aggregates announced to Internet: 52725
Total ASes present in the Internet Routing Table: 13027
Origin-only ASes present in the Internet Routing Table: 11298
Origin ASes announcing only one prefix: 4953
Transit ASes present in the Internet Routing Table: 1729
Transit-only ASes present in the Internet Routing Table: 48
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 43
Number of addresses announced to Internet: 1193194300
Equivalent to 71 /8s, 30 /16s and 179 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45167
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18180
Total APNIC prefixes after maximum aggregation: 10885
Prefixes being announced from the APNIC address blocks: 16682
Unique aggregates announced from the APNIC address blocks: 9825
APNIC Region origin ASes present in the Internet Routing Table: 1497
APNIC Region origin ASes announcing only one prefix: 487
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: 17
Number of APNIC addresses announced to Internet: 88009792
Equivalent to 5 /8s, 62 /16s and 236 /24s
Percentage of available APNIC address space announced: 65.1
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: 75087
Total ARIN prefixes after maximum aggregation: 47753
Prefixes being announced from the ARIN address blocks: 53118
Unique aggregates announced from the ARIN address blocks: 16720
ARIN Region origin ASes present in the Internet Routing Table: 7697
ARIN Region origin ASes announcing only one prefix: 2425
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 191497412
Equivalent to 11 /8s, 106 /16s and 4 /24s
Percentage of available ARIN address space announced: 71.3
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: 18801
Total RIPE prefixes after maximum aggregation: 14332
Prefixes being announced from the RIPE address blocks: 15462
Unique aggregates announced from the RIPE address blocks: 10323
RIPE Region origin ASes present in the Internet Routing Table: 3785
RIPE Region origin ASes announcing only one prefix: 2041
RIPE Region transit ASes present in the Internet Routing Table: 694
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108973360
Equivalent to 6 /8s, 126 /16s and 205 /24s
Percentage of available RIPE address space announced: 72.2
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 1271 1210 936 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 435 1894 371 SINET Japan
703 412 337 328 UUNET Technologies, Inc.
2764 392 360 360 connect.com.au pty ltd
7474 307 291 209 Optus Communications Pty Ltd
4134 280 2036 94 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
17557 275 19 110 Pakistan Telecom
4755 262 109 74 Videsh Sanchar Nigam Ltd. Aut
4766 222 1518 158 Korea Internet Exchange for "
9583 169 32 5 Satyam Infoway Ltd.,
4804 167 92 66 Microplex PTY LTD
7539 165 238 159 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 126 22 89 The Internet Group Limited
4814 125 64 5 China Telecom (Group) - Beiji
17676 122 1952 9 XTAGE CORPORATION
4713 115 993 106 NTT Communications Corporatio
9800 109 4223 12 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1038 2615 853 UUNET Technologies, Inc.
3301 393 908 345 TeliaNet Sweden
5515 275 761 173 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 230 1947 177 Deutsche Telekom AG
1257 209 462 206 SWIPnet Swedish IP Network
5400 208 83 96 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 165 289 119 LANLINK autonomous system
8708 142 22 136 Romania Data Systems S.A.
12302 130 9 49 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 124 53 68 Teleglobe Autonomous System i
3303 116 546 115 Swisscom Ltd
3269 114 694 71 TELECOM ITALIA
5511 107 191 94 France Telecom
517 102 226 98 KPNQwest Germany GmbH
2830 98 227 74 UUNET Dual-Homed customers
2874 97 84 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2064 8410 1463 UUNET Technologies, Inc.
7018 1288 7525 939 AT&T
3908 875 1658 485 Supernet, Inc.
1239 846 3391 668 Sprint
1 811 8187 455 BBN Planet
7046 759 877 531 UUNET Technologies, Inc.
852 669 1148 424 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 580 1935 319 Qwest
7132 569 604 140 Southwestern Bell Internet Se
3549 519 856 322 Global Crossing
690 504 73 319 Merit Network
7066 472 202 248 Virginia Polytechnic Institut
7843 453 350 50 Adelphia Corp.
2914 417 2145 404 Verio, Inc.
705 373 100 265 UUNET Technologies, Inc.
2149 345 207 287 Performance Systems, Inc.
3741 344 731 236 The Internet Solution
6197 341 243 162 BellSouth Network Solutions,
6347 336 370 81 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 477 460 China Education and Research
7132 569 429 Southwestern Bell Internet Se
7843 453 403 Adelphia Corp.
3908 875 390 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 811 356 BBN Planet
7018 1288 349 AT&T
1221 1271 335 Telstra Pty Ltd
4151 302 286 USDA
11371 292 286 Rhythms NetConnections
209 580 261 Qwest
6347 336 255 SAVVIS Communications Corpora
852 669 245 Telus Advanced Communications
7029 259 244 Alltel Information Services,
7046 759 228 UUNET Technologies, Inc.
7066 472 224 Virginia Polytechnic Institut
4355 260 224 EarthLink, Inc.
9443 275 212 Primus Telecommunications
6517 245 211 Yipes Communications, Inc.
1580 214 201 HQ, 5th Signal Command
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25707 UNALLOCATED 12.17.14.0/24 1239 Sprint
25707 UNALLOCATED 12.17.15.0/24 1239 Sprint
25707 UNALLOCATED 12.96.90.0/24 1239 Sprint
25707 UNALLOCATED 63.167.148.0/24 1239 Sprint
112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23399 UNALLOCATED 208.18.224.0/24 1239 Sprint
23399 UNALLOCATED 208.18.236.0/24 1239 Sprint
23399 UNALLOCATED 208.18.237.0/24 1239 Sprint
23399 UNALLOCATED 208.18.238.0/24 1239 Sprint
23399 UNALLOCATED 208.18.239.0/24 1239 Sprint
25733 UNALLOCATED 208.33.184.0/22 1239 Sprint
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
153.147.0.0/16 3561 Cable & Wireless USA
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.31.126.0/23 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.
192.83.1.0/24 5515 Sonera Finland Autonomous Sys
192.83.2.0/24 5515 Sonera Finland Autonomous Sys
192.83.8.0/21 5515 Sonera Finland Autonomous Sys
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 /9:8 /10:7 /11:13 /12:32
/13:85 /14:231 /15:404 /16:7196 /17:1430 /18:2564
/19:7486 /20:7064 /21:5034 /22:7728 /23:9398 /24:62563
/25:224 /26:196 /27:90 /28:91 /29:53 /30:96
/31:0 /32:54
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 646 1038 UUNET Technologies, Inc.
701 627 2064 UUNET Technologies, Inc.
3908 453 875 Supernet, Inc.
690 443 504 Merit Network
7046 384 759 UUNET Technologies, Inc.
7066 380 472 Virginia Polytechnic Institut
7018 335 1288 AT&T
209 270 580 Qwest
7843 262 453 Adelphia Corp.
6197 246 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
7029 244 259 Alltel Information Services,
1 243 811 BBN Planet
1239 238 846 Sprint
3301 236 393 TeliaNet Sweden
6198 228 310 BellSouth Network Solutions,
6517 223 245 Yipes Communications, Inc.
3549 218 519 Global Crossing
1580 202 214 HQ, 5th Signal Command
3215 200 265 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:505 13:10 15:2 17:7
20:2 24:759 25:1 32:67 38:8 40:6
44:1 57:13 61:200 62:199 63:2037 64:1212
65:1298 66:914 67:69 68:9 80:240 81:19
128:59 129:138 130:23 131:47 132:13 133:3
134:120 135:9 136:315 137:93 138:148 139:53
140:184 141:119 142:80 143:38 144:147 145:12
146:225 147:135 148:163 149:92 150:41 151:60
152:312 153:33 154:9 155:99 156:74 157:126
158:69 159:130 160:24 161:64 162:149 163:102
164:274 165:127 166:227 167:171 168:124 169:54
170:305 171:2 192:5457 193:2329 194:2108 195:802
196:443 198:3744 199:3216 200:2478 202:3171 203:4543
204:3281 205:2165 206:2572 207:2660 208:2620 209:2699
210:666 211:239 212:874 213:603 214:9 215:18
216:3018 217:453 218:21
End of report
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