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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 Fri 16 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113041
Prefixes after maximum aggregation: 73602
Unique aggregates announced to Internet: 54854
Total ASes present in the Internet Routing Table: 13490
Origin-only ASes present in the Internet Routing Table: 11678
Origin ASes announcing only one prefix: 5200
Transit ASes present in the Internet Routing Table: 1812
Transit-only ASes present in the Internet Routing Table: 51
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 21
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: 1182097060
Equivalent to 70 /8s, 117 /16s and 94 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 45646
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18710
Total APNIC prefixes after maximum aggregation: 11058
Prefixes being announced from the APNIC address blocks: 17364
Unique aggregates announced from the APNIC address blocks: 10628
APNIC Region origin ASes present in the Internet Routing Table: 1580
APNIC Region origin ASes announcing only one prefix: 515
APNIC Region transit ASes present in the Internet Routing Table: 280
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 11
Number of APNIC addresses announced to Internet: 92074848
Equivalent to 5 /8s, 124 /16s and 243 /24s
Percentage of available APNIC address space announced: 60.6
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: 75069
Total ARIN prefixes after maximum aggregation: 47943
Prefixes being announced from the ARIN address blocks: 53704
Unique aggregates announced from the ARIN address blocks: 18110
ARIN Region origin ASes present in the Internet Routing Table: 7917
ARIN Region origin ASes announcing only one prefix: 2553
ARIN Region transit ASes present in the Internet Routing Table: 775
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 190602304
Equivalent to 11 /8s, 92 /16s and 92 /24s
Percentage of available ARIN address space announced: 66.8
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19262
Total RIPE prefixes after maximum aggregation: 14601
Prefixes being announced from the RIPE address blocks: 15998
Unique aggregates announced from the RIPE address blocks: 10513
RIPE Region origin ASes present in the Internet Routing Table: 3942
RIPE Region origin ASes announcing only one prefix: 2132
RIPE Region transit ASes present in the Internet Routing Table: 747
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 113276928
Equivalent to 6 /8s, 192 /16s and 120 /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 1218 1189 888 Telstra Pty Ltd
4538 626 1312 28 China Education and Research
703 415 377 323 UUNET
2907 362 1815 341 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 317 292 213 Optus Communications Pty Ltd
4134 299 2183 102 Data Communications Bureau
4755 286 143 75 Videsh Sanchar Nigam Ltd. Aut
17557 268 20 95 Pakistan Telecom
4766 249 1506 156 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 187 2914 34 XTAGE CORPORATION
9583 183 32 5 Satyam Infoway Ltd.,
9443 171 45 68 Primus Telecommunications
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4713 114 1009 105 NTT Communications Corporatio
4739 113 56 104 Commerical Internet eXchange
4795 103 19 54 INDOSATNET-ASN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 894 2430 752 UUNET - Commercial IP service
3301 396 923 345 TeliaNet Sweden
5515 320 783 180 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 211 85 100 BT Ignite European Backbone
1257 207 446 202 SWIPnet Swedish IP Network
719 182 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 145 41 141 Romania Data Systems S.A.
3303 142 548 141 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 124 18 37 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3269 106 658 63 TELECOM ITALIA
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 101 85 38 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 1786 9126 1359 UUNET Technologies, Inc.
7018 1300 7431 937 AT&T
3908 1016 1659 495 Supernet, Inc.
1239 822 3224 645 Sprint
852 724 1175 450 Telus Advanced Communications
1 671 8040 433 GENUITY
7843 646 371 258 Adelphia Corp.
7132 595 663 137 Southwestern Bell Internet Se
4323 544 450 172 Time Warner Communications, I
690 523 76 329 Merit Network
7046 512 882 315 UUNET Technologies, Inc.
209 506 2057 342 Qwest
2548 465 1162 277 Business Internet, Inc.
3549 436 808 312 Global Crossing
6197 381 611 37 BellSouth Network Solutions,
15290 378 297 193 AT&T Canada IES
2914 361 2074 361 Verio, Inc.
6347 350 370 76 SAVVIS Communications Corpora
4355 336 279 72 EarthLink, Inc.
6198 317 158 203 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 626 598 China Education and Research
3908 1016 521 Supernet, Inc.
7132 595 458 Southwestern Bell Internet Se
7843 646 388 Adelphia Corp.
4323 544 372 Time Warner Communications, I
7018 1300 363 AT&T
6197 381 344 BellSouth Network Solutions,
1221 1218 330 Telstra Pty Ltd
4151 299 283 USDA
852 724 274 Telus Advanced Communications
6347 350 274 SAVVIS Communications Corpora
4355 336 264 EarthLink, Inc.
18566 245 241 Covad Communications
1 671 238 GENUITY
4814 231 217 China Telecom (Group)
4755 286 211 Videsh Sanchar Nigam Ltd. Aut
1580 212 200 ANOSCEUR
7046 512 197 UUNET Technologies, Inc.
4134 299 197 Data Communications Bureau
690 523 194 Merit Network
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 - 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
/13:84 /14:232 /15:418 /16:7283 /17:1469 /18:2680
/19:7787 /20:7547 /21:5219 /22:7923 /23:9558 /24:62307
/25:153 /26:139 /27:56 /28:54 /29:31 /30:5
/31:0 /32:16
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 602 1016 Supernet, Inc.
702 544 894 UUNET - Commercial IP service
701 490 1786 UUNET Technologies, Inc.
690 469 523 Merit Network
7843 447 646 Adelphia Corp.
7018 379 1300 AT&T
6197 266 381 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 241 245 Covad Communications
3301 234 396 TeliaNet Sweden
3215 223 291 France Telecom Transpac
1239 221 822 Sprint
7066 205 302 Virginia Polytechnic Institut
1580 199 212 ANOSCEUR
4355 193 336 EarthLink, Inc.
7046 191 512 UUNET Technologies, Inc.
209 188 506 Qwest
4323 185 544 Time Warner Communications, I
5400 185 211 BT Ignite European Backbone
11492 185 189 Cable One
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:538 13:10 15:2 17:6
20:4 24:721 25:1 32:41 38:9 40:6
44:1 57:14 61:328 62:237 63:1864 64:1232
65:1440 66:992 67:97 68:87 80:264 81:46
128:68 129:124 130:21 131:54 132:11 133:2
134:107 135:9 136:425 137:95 138:150 139:62
140:152 141:46 142:61 143:48 144:141 145:18
146:238 147:143 148:237 149:79 150:40 151:57
152:268 153:36 154:11 155:115 156:71 157:108
158:68 159:134 160:20 161:73 162:123 163:78
164:83 165:128 166:107 167:262 168:284 169:60
170:195 171:3 192:5383 193:2347 194:2067 195:808
196:415 198:3579 199:3130 200:2594 202:3332 203:4693
204:3231 205:2134 206:2444 207:2472 208:2600 209:2696
210:605 211:244 212:867 213:710 214:8 215:19
216:2839 217:497 218:33 219:1
End of report
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