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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 09 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113463
Prefixes after maximum aggregation: 73555
Unique aggregates announced to Internet: 54381
Total ASes present in the Internet Routing Table: 13313
Origin-only ASes present in the Internet Routing Table: 11529
Origin ASes announcing only one prefix: 5108
Transit ASes present in the Internet Routing Table: 1784
Transit-only ASes present in the Internet Routing Table: 46
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1192011260
Equivalent to 71 /8s, 12 /16s and 165 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 45849
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18571
Total APNIC prefixes after maximum aggregation: 11091
Prefixes being announced from the APNIC address blocks: 17064
Unique aggregates announced from the APNIC address blocks: 10460
APNIC Region origin ASes present in the Internet Routing Table: 1554
APNIC Region origin ASes announcing only one prefix: 507
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 88170080
Equivalent to 5 /8s, 65 /16s and 94 /24s
Percentage of available APNIC address space announced: 58.0
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75652
Total ARIN prefixes after maximum aggregation: 47963
Prefixes being announced from the ARIN address blocks: 53912
Unique aggregates announced from the ARIN address blocks: 17952
ARIN Region origin ASes present in the Internet Routing Table: 7832
ARIN Region origin ASes announcing only one prefix: 2511
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189144660
Equivalent to 11 /8s, 70 /16s and 30 /24s
Percentage of available ARIN address space announced: 70.5
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: 19240
Total RIPE prefixes after maximum aggregation: 14501
Prefixes being announced from the RIPE address blocks: 15978
Unique aggregates announced from the RIPE address blocks: 10448
RIPE Region origin ASes present in the Internet Routing Table: 3881
RIPE Region origin ASes announcing only one prefix: 2090
RIPE Region transit ASes present in the Internet Routing Table: 720
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 112219680
Equivalent to 6 /8s, 176 /16s and 86 /24s
Percentage of available RIPE address space announced: 74.3
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 1262 1206 903 Telstra Pty Ltd
4538 448 1258 18 China Education and Research
703 404 358 319 UUNET Technologies, Inc.
2907 373 1883 346 SINET Japan
2764 368 358 338 connect.com.au pty ltd
7474 313 292 212 Optus Communications Pty Ltd
4755 304 120 83 Videsh Sanchar Nigam Ltd. Aut
17557 302 20 106 Pakistan Telecom
4134 291 2114 107 Data Communications Bureau
9443 242 44 63 Primus Telecommunications
4766 217 1506 155 Korea Internet Exchange for "
4814 210 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
7539 154 191 149 TANet2, sponsored by NSC, TAI
17676 154 2386 25 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 130 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4713 115 1009 106 NTT Communications Corporatio
4780 112 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 949 2461 783 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
3352 276 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 253 1946 192 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 212 783 169 Sonera Finland Autonomous Sys
1257 205 430 202 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 138 23 136 Romania Data Systems S.A.
3303 137 547 136 Swisscom Ltd
2856 127 787 117 BTnet UK Regional network
12302 121 17 33 MobiFon S.A.
3246 113 317 108 Song Networks / Clinet
3269 113 690 68 TELECOM ITALIA
5511 109 192 87 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1858 9257 1384 UUNET Technologies, Inc.
7018 1292 7423 936 AT&T
3908 925 1643 502 Supernet, Inc.
1239 833 3336 657 Sprint
852 750 1173 447 Telus Advanced Communications
1 695 8075 446 GENUITY
4323 632 438 259 Time Warner Communications, I
7843 615 358 229 Adelphia Corp.
209 612 2011 351 Qwest
7132 579 659 133 Southwestern Bell Internet Se
7046 564 889 360 UUNET Technologies, Inc.
690 512 75 317 Merit Network
7066 481 203 251 Virginia Polytechnic Institut
7029 464 165 56 Alltel Information Services,
2149 441 180 334 Performance Systems, Inc.
3549 439 839 316 Global Crossing
2914 407 2100 384 Verio, Inc.
15290 379 297 194 AT&T Canada IES
6197 351 249 173 BellSouth Network Solutions,
6347 338 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 448 430 China Education and Research
3908 925 423 Supernet, Inc.
7029 464 408 Alltel Information Services,
7843 615 386 Adelphia Corp.
4323 632 373 Time Warner Communications, I
1221 1262 359 Telstra Pty Ltd
7018 1292 356 AT&T
852 750 303 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 612 261 Qwest
6347 338 261 SAVVIS Communications Corpora
1 695 249 GENUITY
4355 301 249 EarthLink, Inc.
3352 276 247 Ibernet, Internet Access Netw
7066 481 230 Virginia Polytechnic Institut
18566 228 224 Covad Communications
4755 304 221 Videsh Sanchar Nigam Ltd. Aut
6198 325 220 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
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.
192.83.16.0/20 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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:418 /16:7235 /17:1457 /18:2651
/19:7675 /20:7339 /21:5149 /22:7919 /23:9620 /24:62926
/25:201 /26:167 /27:87 /28:72 /29:52 /30:74
/31:0 /32:21
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 587 949 UUNET Technologies, Inc.
3908 513 925 Supernet, Inc.
701 509 1858 UUNET Technologies, Inc.
690 453 512 Merit Network
7843 422 615 Adelphia Corp.
7066 386 481 Virginia Polytechnic Institut
7029 367 464 Alltel Information Services,
7018 348 1292 AT&T
209 274 612 Qwest
6197 253 351 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 238 325 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 224 228 Covad Communications
7046 218 564 UUNET Technologies, Inc.
1239 217 833 Sprint
1580 203 216 HQ, 5th Signal Command
3352 200 276 Ibernet, Internet Access Netw
3215 199 266 France Telecom / &Equant
1 192 695 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:504 13:10 15:2 17:6
20:3 24:796 25:1 32:41 38:9 40:6
44:1 57:13 61:274 62:219 63:1890 64:1257
65:1419 66:1003 67:89 68:45 80:249 81:33
128:63 129:133 130:22 131:52 132:11 133:2
134:124 135:8 136:243 137:93 138:149 139:69
140:173 141:123 142:81 143:39 144:153 145:14
146:188 147:138 148:221 149:90 150:40 151:67
152:261 153:34 154:14 155:106 156:77 157:128
158:70 159:135 160:18 161:68 162:214 163:96
164:268 165:131 166:220 167:170 168:126 169:61
170:260 171:3 192:5446 193:2358 194:2069 195:915
196:396 198:3639 199:3179 200:2604 202:3279 203:4654
204:3262 205:2179 206:2685 207:2552 208:2649 209:2670
210:590 211:229 212:904 213:656 214:9 215:19
216:2859 217:466 218:28
End of report
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