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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 Sun 25 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114617
Prefixes after maximum aggregation: 74217
Unique aggregates announced to Internet: 55099
Total ASes present in the Internet Routing Table: 13606
Origin-only ASes present in the Internet Routing Table: 11776
Origin ASes announcing only one prefix: 5249
Transit ASes present in the Internet Routing Table: 1830
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: 1
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: 1183696036
Equivalent to 70 /8s, 141 /16s and 196 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46606
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18867
Total APNIC prefixes after maximum aggregation: 11167
Prefixes being announced from the APNIC address blocks: 17448
Unique aggregates announced from the APNIC address blocks: 10660
APNIC Region origin ASes present in the Internet Routing Table: 1588
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 272
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 93388896
Equivalent to 5 /8s, 145 /16s and 0 /24s
Percentage of available APNIC address space announced: 61.4
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76352
Total ARIN prefixes after maximum aggregation: 48344
Prefixes being announced from the ARIN address blocks: 54287
Unique aggregates announced from the ARIN address blocks: 18187
ARIN Region origin ASes present in the Internet Routing Table: 7990
ARIN Region origin ASes announcing only one prefix: 2581
ARIN Region transit ASes present in the Internet Routing Table: 798
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 191317104
Equivalent to 11 /8s, 103 /16s and 68 /24s
Percentage of available ARIN address space announced: 67.1
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19398
Total RIPE prefixes after maximum aggregation: 14706
Prefixes being announced from the RIPE address blocks: 16115
Unique aggregates announced from the RIPE address blocks: 10606
RIPE Region origin ASes present in the Internet Routing Table: 3967
RIPE Region origin ASes announcing only one prefix: 2148
RIPE Region transit ASes present in the Internet Routing Table: 743
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113421056
Equivalent to 6 /8s, 194 /16s and 171 /24s
Percentage of available RIPE address space announced: 75.1
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 1206 1189 886 Telstra Pty Ltd
4538 577 1330 18 China Education and Research
703 411 376 320 UUNET
2907 365 1833 343 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 318 292 213 Optus Communications Pty Ltd
4134 301 2222 96 Data Communications Bureau
4755 284 142 74 Videsh Sanchar Nigam Ltd. Aut
17557 273 20 97 Pakistan Telecom
4766 250 1507 157 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 191 2978 34 XTAGE CORPORATION
9443 174 57 65 Primus Telecommunications
9583 173 32 5 Satyam Infoway Ltd.,
9768 144 385 74 Korea Telecom
7657 131 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4713 113 993 104 NTT Communications Corporatio
4621 112 11 62 UNINET-TH
4739 112 56 103 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 891 2429 748 UUNET - Commercial IP service
3301 399 924 346 TeliaNet Sweden
5515 319 783 179 Sonera Solution Autonomous Sy
3215 291 641 180 France Telecom Transpac
3320 246 1964 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 213 85 101 BT Ignite European Backbone
1257 210 444 205 SWIPnet Swedish IP Network
719 185 306 129 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 145 41 141 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 119 372 112 Song Networks
5511 110 192 88 France Telecom
3233 108 10 9 RNC - Romanian Natioanal R&D
3269 106 658 63 TELECOM ITALIA
2874 102 85 39 Global One Services AB
8220 100 166 96 COLT Internet - International
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1787 9110 1360 UUNET Technologies, Inc.
7018 1289 7197 918 AT&T
3908 1021 1661 499 Supernet, Inc.
1239 828 3192 642 Sprint
852 729 1175 451 Telus Advanced Communications
1 666 8023 430 GENUITY
7843 652 371 274 Adelphia Corp.
7046 614 882 315 UUNET Technologies, Inc.
7132 594 664 137 Southwestern Bell Internet Se
4323 557 450 176 Time Warner Communications, I
690 518 75 325 Merit Network
209 512 2074 346 Qwest
7066 489 203 256 Virginia Polytechnic Institut
2548 461 1145 273 Business Internet, Inc.
3549 419 726 301 Global Crossing
15290 374 249 188 AT&T Canada IES
6197 362 254 182 BellSouth Network Solutions,
2914 359 2042 359 Verio, Inc.
6347 349 370 76 SAVVIS Communications Corpora
4355 340 281 72 EarthLink, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 577 559 China Education and Research
3908 1021 522 Supernet, Inc.
7132 594 457 Southwestern Bell Internet Se
4323 557 381 Time Warner Communications, I
7843 652 378 Adelphia Corp.
7018 1289 371 AT&T
1221 1206 320 Telstra Pty Ltd
7046 614 299 UUNET Technologies, Inc.
4151 305 289 USDA
852 729 278 Telus Advanced Communications
6347 349 273 SAVVIS Communications Corpora
4355 340 268 EarthLink, Inc.
18566 263 259 Covad Communications
1 666 236 GENUITY
7066 489 233 Virginia Polytechnic Institut
376 339 233 Reseau Interordinateurs Scien
4814 231 217 China Telecom (Group)
4755 284 210 Videsh Sanchar Nigam Ltd. Aut
4134 301 205 Data Communications Bureau
1580 212 200 ANOSCEUR
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
192.44.0.0/19 702 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
192.119.135.0/24 270 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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.208.29.0/24 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 /9:6 /10:7 /11:12 /12:37
/13:86 /14:235 /15:424 /16:7298 /17:1480 /18:2679
/19:7809 /20:7592 /21:5287 /22:8009 /23:9682 /24:63169
/25:211 /26:222 /27:125 /28:78 /29:42 /30:76
/31:1 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 603 1021 Supernet, Inc.
702 544 891 UUNET - Commercial IP service
701 494 1787 UUNET Technologies, Inc.
690 464 518 Merit Network
7843 452 652 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 385 1289 AT&T
7046 291 614 UUNET Technologies, Inc.
6197 263 362 BellSouth Network Solutions,
18566 259 263 Covad Communications
6198 242 318 BellSouth Network Solutions,
3301 237 399 TeliaNet Sweden
1239 224 828 Sprint
3215 223 291 France Telecom Transpac
1580 199 212 ANOSCEUR
4355 195 340 EarthLink, Inc.
4323 191 557 Time Warner Communications, I
209 190 512 Qwest
5400 187 213 BT Ignite European Backbone
4538 186 577 China Education and Research
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:546 13:10 15:2 17:6
20:4 24:814 25:1 32:41 38:9 40:6
44:1 55:1 57:14 61:317 62:236 63:1844
64:1240 65:1468 66:1052 67:97 68:92 80:261
81:46 128:65 129:157 130:21 131:55 132:11
133:2 134:124 135:9 136:492 137:95 138:147
139:67 140:158 141:73 142:68 143:50 144:140
145:17 146:255 147:142 148:249 149:80 150:41
151:57 152:265 153:36 154:11 155:116 156:71
157:113 158:67 159:140 160:20 161:77 162:123
163:87 164:264 165:124 166:103 167:264 168:120
169:62 170:192 171:3 192:5487 193:2377 194:2080
195:818 196:415 198:3673 199:3128 200:2629 202:3326
203:4738 204:3254 205:2144 206:2495 207:2508 208:2598
209:2697 210:605 211:238 212:881 213:721 214:8
215:20 216:2849 217:500 218:34 219:1
End of report
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