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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 Thu 08 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114824
Prefixes after maximum aggregation: 74020
Unique aggregates announced to Internet: 54836
Total ASes present in the Internet Routing Table: 13520
Origin-only ASes present in the Internet Routing Table: 11698
Origin ASes announcing only one prefix: 5201
Transit ASes present in the Internet Routing Table: 1822
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: 23
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1188129061
Equivalent to 70 /8s, 209 /16s and 105 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46627
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18892
Total APNIC prefixes after maximum aggregation: 11194
Prefixes being announced from the APNIC address blocks: 17401
Unique aggregates announced from the APNIC address blocks: 10622
APNIC Region origin ASes present in the Internet Routing Table: 1583
APNIC Region origin ASes announcing only one prefix: 515
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90648544
Equivalent to 5 /8s, 103 /16s and 47 /24s
Percentage of available APNIC address space announced: 59.6
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76516
Total ARIN prefixes after maximum aggregation: 48191
Prefixes being announced from the ARIN address blocks: 54192
Unique aggregates announced from the ARIN address blocks: 18171
ARIN Region origin ASes present in the Internet Routing Table: 7950
ARIN Region origin ASes announcing only one prefix: 2562
ARIN Region transit ASes present in the Internet Routing Table: 790
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190328896
Equivalent to 11 /8s, 88 /16s and 48 /24s
Percentage of available ARIN address space announced: 70.9
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: 19415
Total RIPE prefixes after maximum aggregation: 14635
Prefixes being announced from the RIPE address blocks: 16080
Unique aggregates announced from the RIPE address blocks: 10524
RIPE Region origin ASes present in the Internet Routing Table: 3933
RIPE Region origin ASes announcing only one prefix: 2124
RIPE Region transit ASes present in the Internet Routing Table: 740
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 113202176
Equivalent to 6 /8s, 191 /16s and 84 /24s
Percentage of available RIPE address space announced: 75.0
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 1249 1194 899 Telstra Pty Ltd
4538 564 1279 27 China Education and Research
703 408 376 320 UUNET
2907 365 1848 343 SINET Japan
2764 360 358 331 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 294 20 95 Pakistan Telecom
4134 293 2166 103 Data Communications Bureau
4755 280 111 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 181 32 5 Satyam Infoway Ltd.,
17676 177 2754 34 XTAGE CORPORATION
9443 170 45 68 Primus Telecommunications
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 115 11 63 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 907 2434 757 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 269 1965 208 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 210 85 98 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 142 24 138 Romania Data Systems S.A.
3303 141 548 140 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 107 10 9 RNC - Romanian Natioanal R&D
2874 101 85 38 Global One Services AB
8297 94 46 51 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1801 9227 1367 UUNET Technologies, Inc.
7018 1316 7434 940 AT&T
3908 1015 1659 500 Supernet, Inc.
1239 810 3248 645 Sprint
852 753 1175 451 Telus Advanced Communications
1 699 8051 448 GENUITY
4323 639 442 263 Time Warner Communications, I
7843 628 367 229 Adelphia Corp.
7132 592 663 137 Southwestern Bell Internet Se
690 521 75 332 Merit Network
7046 516 886 320 UUNET Technologies, Inc.
209 506 2057 343 Qwest
7066 486 203 254 Virginia Polytechnic Institut
7029 451 164 54 Alltel Information Services,
3549 437 824 313 Global Crossing
6197 378 599 48 BellSouth Network Solutions,
15290 378 297 194 AT&T Canada IES
2149 368 166 271 Performance Systems, Inc.
2914 364 2077 364 Verio, Inc.
6347 347 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 564 537 China Education and Research
3908 1015 515 Supernet, Inc.
7132 592 455 Southwestern Bell Internet Se
7843 628 399 Adelphia Corp.
7029 451 397 Alltel Information Services,
7018 1316 376 AT&T
4323 639 376 Time Warner Communications, I
1221 1249 350 Telstra Pty Ltd
6197 378 330 BellSouth Network Solutions,
852 753 302 Telus Advanced Communications
1657 279 277 University of Louisville
6347 347 272 SAVVIS Communications Corpora
4151 285 270 USDA
4355 328 258 EarthLink, Inc.
1 699 251 GENUITY
18566 239 235 Covad Communications
7066 486 232 Virginia Polytechnic Institut
376 326 225 Reseau Interordinateurs Scien
4755 280 206 Videsh Sanchar Nigam Ltd. Aut
4814 220 206 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26705 UNALLOCATED 12.111.19.0/24 701 UUNET Technologies,
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
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 Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
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
192.136.79.0/24 719 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
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
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 /8:18 /9:7 /10:7 /11:12 /12:37
/13:84 /14:231 /15:419 /16:7291 /17:1473 /18:2678
/19:7726 /20:7551 /21:5282 /22:7981 /23:9681 /24:63511
/25:199 /26:180 /27:100 /28:94 /29:70 /30:113
/31:0 /32:79
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 600 1015 Supernet, Inc.
702 553 907 UUNET - Commercial IP service
701 487 1801 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 427 628 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 377 1316 AT&T
7029 356 451 Alltel Information Services,
1657 278 279 University of Louisville
6197 264 378 BellSouth Network Solutions,
6198 243 316 BellSouth Network Solutions,
18566 235 239 Covad Communications
3301 234 396 TeliaNet Sweden
3215 221 289 France Telecom Transpac
1239 214 810 Sprint
1580 202 215 ANOSCEUR
3320 201 269 Deutsche Telekom AG
1 195 699 GENUITY
4355 187 328 EarthLink, Inc.
7046 187 516 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:529 13:10 15:2 17:6
20:3 24:707 25:1 32:41 38:9 40:6
44:1 57:14 61:320 62:239 63:1862 64:1233
65:1421 66:975 67:95 68:80 80:259 81:43
128:67 129:151 130:21 131:55 132:11 133:2
134:121 135:10 136:344 137:95 138:147 139:71
140:175 141:46 142:70 143:50 144:142 145:17
146:240 147:142 148:243 149:79 150:40 151:69
152:270 153:36 154:11 155:114 156:69 157:118
158:69 159:134 160:20 161:77 162:213 163:87
164:264 165:130 166:217 167:259 168:293 169:60
170:235 171:3 192:5466 193:2375 194:2072 195:804
196:414 198:3674 199:3161 200:2720 202:3315 203:4750
204:3242 205:2184 206:2679 207:2569 208:2599 209:2713
210:578 211:236 212:899 213:719 214:9 215:20
216:2844 217:492 218:30 219:1
End of report
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