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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 06 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115547
Prefixes after maximum aggregation: 74400
Unique aggregates announced to Internet: 55187
Total ASes present in the Internet Routing Table: 13864
Origin-only ASes present in the Internet Routing Table: 11995
Origin ASes announcing only one prefix: 5375
Transit ASes present in the Internet Routing Table: 1869
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.3
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: 35
Number of addresses announced to Internet: 1190764712
Equivalent to 70 /8s, 249 /16s and 160 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 47860
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18697
Total APNIC prefixes after maximum aggregation: 11364
Prefixes being announced from the APNIC address blocks: 17217
Unique aggregates announced from the APNIC address blocks: 10956
APNIC Region origin ASes present in the Internet Routing Table: 1617
APNIC Region origin ASes announcing only one prefix: 527
APNIC Region transit ASes present in the Internet Routing Table: 282
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 97975200
Equivalent to 5 /8s, 214 /16s and 251 /24s
Percentage of available APNIC address space announced: 64.4
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: 72406
Total ARIN prefixes after maximum aggregation: 46088
Prefixes being announced from the ARIN address blocks: 50632
Unique aggregates announced from the ARIN address blocks: 15298
ARIN Region origin ASes present in the Internet Routing Table: 7792
ARIN Region origin ASes announcing only one prefix: 2562
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 181317440
Equivalent to 10 /8s, 206 /16s and 175 /24s
Percentage of available ARIN address space announced: 67.5
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 - 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: 19640
Total RIPE prefixes after maximum aggregation: 14873
Prefixes being announced from the RIPE address blocks: 16317
Unique aggregates announced from the RIPE address blocks: 10820
RIPE Region origin ASes present in the Internet Routing Table: 4079
RIPE Region origin ASes announcing only one prefix: 2206
RIPE Region transit ASes present in the Internet Routing Table: 755
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 114357440
Equivalent to 6 /8s, 208 /16s and 244 /24s
Percentage of available RIPE address space announced: 75.7
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: 4804
Total LACNIC prefixes after maximum aggregation: 2075
Prefixes being announced from the LACNIC address blocks: 4222
Unique aggregates announced from the LACNIC address blocks: 2623
LACNIC Region origin ASes present in the Internet Routing Table: 314
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11370752
Equivalent to 0 /8s, 173 /16s and 129 /24s
Percentage of available LACNIC address space announced: 67.8
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 1198 1187 881 Telstra Pty Ltd
703 397 375 313 UUNET
2907 361 1831 341 SINET Japan
2764 342 356 314 connect.com.au pty ltd
7474 302 275 206 Optus Communications Pty Ltd
4134 292 2268 96 Data Communications Bureau
17557 283 21 109 Pakistan Telecom
4755 263 139 72 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
17676 224 3506 33 XTAGE CORPORATION
4814 223 79 15 China Telecom (Group)
9443 186 57 72 Primus Telecommunications
9583 167 32 5 Satyam Infoway Ltd.,
4515 136 102 77 Star Internet Services Ltd.
9768 133 383 72 Korea Telecom
7657 128 22 85 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
9498 109 8 21 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1788 9232 1285 UUNET Technologies, Inc.
7018 1339 7196 939 AT&T
3908 1050 1652 508 Supernet, Inc.
1239 847 3170 649 Sprint
852 756 1145 457 Telus Advanced Communications
7843 722 372 302 Adelphia Corp.
1 660 8075 437 GENUITY
7132 595 672 71 Southwestern Bell Internet Se
7046 575 878 296 UUNET Technologies, Inc.
4323 526 439 165 Time Warner Communications, I
209 525 2066 340 Qwest
690 518 75 325 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
2548 448 1134 278 Business Internet, Inc.
705 409 130 199 UUNET Technologies, Inc.
3549 407 725 294 Global Crossing
6197 390 601 40 BellSouth Network Solutions,
4355 382 292 104 EarthLink, Inc.
2914 368 2027 361 Verio, Inc.
15290 358 230 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 873 2406 727 UUNET - Commercial IP service
3301 387 907 339 TeliaNet Sweden
3215 294 677 170 France Telecom Transpac
3320 248 1966 225 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 214 783 177 Sonera Solution Autonomous Sy
5400 208 84 98 BT Ignite European Backbone
1257 205 444 201 SWIPnet Swedish IP Network
719 190 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
8708 161 41 145 Romania Data Systems S.A.
2856 158 790 137 BTnet UK Regional network
3303 144 532 143 Swisscom Ltd
3246 123 373 116 Song Networks
12302 121 17 28 MobiFon S.A.
8220 112 168 104 COLT Internet - International
5511 111 192 89 France Telecom
3233 107 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 103 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 202 314 112 UniNet S.A. de C.V.
7303 173 27 49 Telecom Argentina Stet-France
11172 170 88 35 Servicios Alestra S.A de C.V
6503 150 190 108 AVANTEL, S.A.
10834 147 75 35 ADVANCE TELECOMUNICACIONES S.
6140 115 76 28 ImpSat USA, Inc.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
10620 93 6 29 TVCABLE BOGOTA
11340 78 2 23 Red Universitaria Nacional
15311 74 24 31 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
15034 73 5 33 TIBA SA
11992 72 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
7984 64 27 42 Global One Colombia
2277 63 16 3 ECUANET - CORPORACION ECUATOR
4926 63 4 51 Telintar S.A.
8065 60 6 16 Empresas Publicas de Medellin
16528 57 5 35 ImpSat S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1050 542 Supernet, Inc.
7132 595 524 Southwestern Bell Internet Se
7843 722 420 Adelphia Corp.
7018 1339 400 AT&T
4323 526 361 Time Warner Communications, I
6197 390 350 BellSouth Network Solutions,
1221 1198 317 Telstra Pty Ltd
1580 320 308 ANOSCEUR
852 756 299 Telus Advanced Communications
18566 292 288 Covad Communications
7046 575 279 UUNET Technologies, Inc.
4355 382 278 EarthLink, Inc.
6347 342 268 SAVVIS Communications Corpora
4151 281 265 USDA
7066 490 233 Virginia Polytechnic Institut
376 341 231 Reseau Interordinateurs Scien
1 660 223 GENUITY
705 409 210 UUNET Technologies, Inc.
11492 224 210 Cable One
4814 223 208 China Telecom (Group)
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
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:90 /14:238 /15:429 /16:7271 /17:1501 /18:2713
/19:7860 /20:7518 /21:5306 /22:8125 /23:9866 /24:63807
/25:173 /26:206 /27:115 /28:71 /29:50 /30:96
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 621 1050 Supernet, Inc.
702 537 873 UUNET - Commercial IP service
7843 533 722 Adelphia Corp.
701 488 1788 UUNET Technologies, Inc.
690 465 518 Merit Network
7018 421 1339 AT&T
7066 388 490 Virginia Polytechnic Institut
1580 307 320 ANOSCEUR
18566 286 292 Covad Communications
6197 274 390 BellSouth Network Solutions,
7046 265 575 UUNET Technologies, Inc.
6198 244 314 BellSouth Network Solutions,
1239 240 847 Sprint
3301 231 387 TeliaNet Sweden
3215 225 294 France Telecom Transpac
4355 220 382 EarthLink, Inc.
11492 219 224 Cable One
209 203 525 Qwest
3320 189 248 Deutsche Telekom AG
5400 188 208 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:554 13:10 15:4 17:7 20:4
24:843 25:1 32:41 38:24 40:8 44:1
55:1 57:14 61:356 62:241 63:1861 64:1289
65:1529 66:1201 67:110 68:128 69:1 80:299
81:58 128:118 129:125 130:19 131:54 132:9
133:2 134:129 135:9 136:593 137:104 138:152
139:70 140:166 141:67 142:70 143:49 144:153
145:17 146:240 147:226 148:249 149:78 150:42
151:73 152:297 153:37 154:9 155:105 156:102
157:106 158:69 159:139 160:23 161:74 162:123
163:87 164:261 165:127 166:104 167:273 168:301
169:61 170:180 171:2 192:5374 193:2380 194:2014
195:821 196:438 198:3613 199:3068 200:2626 202:3420
203:4788 204:3237 205:2130 206:2378 207:2477 208:2557
209:2592 210:585 211:240 212:887 213:755 214:7
215:19 216:2961 217:508 218:47 219:2
End of report
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