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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 25 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116108
Prefixes after maximum aggregation: 74750
Unique aggregates announced to Internet: 55671
Total ASes present in the Internet Routing Table: 13958
Origin-only ASes present in the Internet Routing Table: 12096
Origin ASes announcing only one prefix: 5427
Transit ASes present in the Internet Routing Table: 1862
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 7
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: 1180872648
Equivalent to 70 /8s, 98 /16s and 175 /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: 48190
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19058
Total APNIC prefixes after maximum aggregation: 11448
Prefixes being announced from the APNIC address blocks: 17554
Unique aggregates announced from the APNIC address blocks: 11079
APNIC Region origin ASes present in the Internet Routing Table: 1625
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 99396768
Equivalent to 5 /8s, 236 /16s and 172 /24s
Percentage of available APNIC address space announced: 65.4
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: 72547
Total ARIN prefixes after maximum aggregation: 46347
Prefixes being announced from the ARIN address blocks: 50983
Unique aggregates announced from the ARIN address blocks: 15434
ARIN Region origin ASes present in the Internet Routing Table: 7851
ARIN Region origin ASes announcing only one prefix: 2596
ARIN Region transit ASes present in the Internet Routing Table: 743
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 182107488
Equivalent to 10 /8s, 218 /16s and 189 /24s
Percentage of available ARIN address space announced: 67.8
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 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19704
Total RIPE prefixes after maximum aggregation: 14882
Prefixes being announced from the RIPE address blocks: 16377
Unique aggregates announced from the RIPE address blocks: 10960
RIPE Region origin ASes present in the Internet Routing Table: 4108
RIPE Region origin ASes announcing only one prefix: 2232
RIPE Region transit ASes present in the Internet Routing Table: 759
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 118363328
Equivalent to 7 /8s, 14 /16s and 20 /24s
Percentage of available RIPE address space announced: 78.4
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4793
Total LACNIC prefixes after maximum aggregation: 2073
Prefixes being announced from the LACNIC address blocks: 4131
Unique aggregates announced from the LACNIC address blocks: 2639
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11532544
Equivalent to 0 /8s, 175 /16s and 249 /24s
Percentage of available LACNIC address space announced: 68.7
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1190 1169 868 Telstra Pty Ltd
703 395 368 313 UUNET
2907 350 1751 330 SINET Japan
2764 335 356 307 connect.com.au pty ltd
17557 312 23 115 Pakistan Telecom
4134 296 2286 97 Data Communications Bureau
7474 294 275 201 Optus Communications Pty Ltd
4755 276 138 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1806 157 Korea Internet Exchange for "
4814 232 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 185 57 73 Primus Telecommunications
9583 162 32 5 Satyam Infoway Ltd.,
4515 138 102 76 Star Internet Services Ltd.
9768 136 385 75 Korea Telecom
4716 129 736 123 TTnet
7657 128 23 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1779 9141 1266 UUNET Technologies, Inc.
7018 1359 7187 946 AT&T
3908 1077 1668 513 Supernet, Inc.
1239 886 3186 662 Sprint
7843 760 373 318 Adelphia Corp.
852 738 1146 457 Telus Advanced Communications
1 660 8042 435 GENUITY
7046 590 892 291 UUNET Technologies, Inc.
209 576 2064 336 Qwest
4323 519 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
705 444 135 204 UUNET Technologies, Inc.
7132 416 673 70 Southwestern Bell Internet Se
3549 410 726 296 Global Crossing
2548 400 1115 243 Business Internet, Inc.
6197 398 601 40 BellSouth Network Solutions,
6198 397 180 197 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 370 2022 363 Verio, Inc.
15290 355 212 174 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 870 2374 722 UUNET - Commercial IP service
3301 381 1163 334 TeliaNet Sweden
3215 309 789 172 France Telecom Transpac
3320 243 1964 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 211 783 176 Sonera Solution Autonomous Sy
1257 208 414 203 SWIPnet Swedish IP Network
5400 200 83 95 BT Ignite European Backbone
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 170 1302 132 BTnet UK Regional network
8708 159 41 147 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
12302 122 17 29 MobiFon S.A.
3246 120 373 115 Song Networks
8220 114 168 105 COLT Internet - International
3233 106 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
5511 102 192 85 France Telecom
2874 99 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 248 114 58 ImpSat USA, Inc.
8151 201 330 110 UniNet S.A. de C.V.
7303 179 27 49 Telecom Argentina Stet-France
11172 168 72 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
13999 101 20 7 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11992 83 8 31 Integrated Systems
11340 80 2 25 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
4270 68 18 10 Red de Interconexion Universi
7984 64 27 42 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 62 16 3 ECUANET - CORPORACION ECUATOR
15034 60 5 32 TIBA SA
7927 59 5 40 Global One Venezuela
8065 59 6 15 Empresas Publicas de Medellin
6535 54 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1077 564 Supernet, Inc.
7843 760 442 Adelphia Corp.
7018 1359 413 AT&T
6197 398 358 BellSouth Network Solutions,
4323 519 355 Time Warner Communications, I
7132 416 346 Southwestern Bell Internet Se
1221 1190 322 Telstra Pty Ltd
18566 325 321 Covad Communications
1580 319 306 ANOSCEUR
7046 590 299 UUNET Technologies, Inc.
852 738 281 Telus Advanced Communications
6347 351 278 SAVVIS Communications Corpora
4355 385 276 EarthLink, Inc.
4151 292 276 USDA
209 576 240 Qwest
705 444 240 UUNET Technologies, Inc.
376 334 231 Reseau Interordinateurs Scien
1 660 225 GENUITY
1239 886 224 Sprint
4814 232 217 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65025 PRIVATE 81.26.65.0/24 11042 Orion Network System
65010 PRIVATE 168.167.21.0/24 11042 Orion Network System
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:12 /12:46
/13:90 /14:238 /15:426 /16:7291 /17:1514 /18:2737
/19:7919 /20:7504 /21:5345 /22:8145 /23:9866 /24:64198
/25:177 /26:206 /27:103 /28:78 /29:55 /30:95
/31:1 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 639 1077 Supernet, Inc.
7843 572 760 Adelphia Corp.
702 540 870 UUNET - Commercial IP service
701 494 1779 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 438 1359 AT&T
18566 319 325 Covad Communications
6198 313 397 BellSouth Network Solutions,
1580 305 319 ANOSCEUR
6197 281 398 BellSouth Network Solutions,
7046 276 590 UUNET Technologies, Inc.
1239 270 886 Sprint
209 259 576 Qwest
3215 234 309 France Telecom Transpac
3301 227 381 TeliaNet Sweden
11492 224 229 Cable One
4355 218 385 EarthLink, Inc.
7066 205 306 Virginia Polytechnic Institut
19029 192 220 New Edge Networks
3320 186 243 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:578 13:10 15:4 17:7 20:3
24:899 25:1 32:42 38:26 40:11 44:1
55:1 57:17 61:368 62:241 63:1903 64:1323
65:1608 66:1200 67:117 68:175 69:16 80:286
81:60 128:129 129:106 130:18 131:63 132:9
133:2 134:131 135:7 136:406 137:108 138:205
139:71 140:156 141:78 142:82 143:46 144:148
145:18 146:241 147:224 148:253 149:76 150:41
151:89 152:294 153:36 154:8 155:107 156:103
157:106 158:75 159:149 160:20 161:74 162:126
163:84 164:81 165:134 166:103 167:300 168:302
169:60 170:212 171:6 192:5427 193:2378 194:2006
195:829 196:431 198:3634 199:3101 200:2512 202:3521
203:4842 204:3276 205:2122 206:2365 207:2464 208:2549
209:2641 210:604 211:282 212:859 213:768 214:10
215:19 216:3008 217:506 218:52 219:3
End of report
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