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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 10 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115606
Prefixes after maximum aggregation: 74539
Unique aggregates announced to Internet: 55328
Total ASes present in the Internet Routing Table: 13896
Origin-only ASes present in the Internet Routing Table: 12015
Origin ASes announcing only one prefix: 5389
Transit ASes present in the Internet Routing Table: 1881
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 19
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: 1192235592
Equivalent to 71 /8s, 16 /16s and 18 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48100
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18789
Total APNIC prefixes after maximum aggregation: 11394
Prefixes being announced from the APNIC address blocks: 17297
Unique aggregates announced from the APNIC address blocks: 10982
APNIC Region origin ASes present in the Internet Routing Table: 1616
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 283
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 98088352
Equivalent to 5 /8s, 216 /16s and 181 /24s
Percentage of available APNIC address space announced: 64.5
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: 72372
Total ARIN prefixes after maximum aggregation: 46140
Prefixes being announced from the ARIN address blocks: 50577
Unique aggregates announced from the ARIN address blocks: 15346
ARIN Region origin ASes present in the Internet Routing Table: 7808
ARIN Region origin ASes announcing only one prefix: 2568
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 181418592
Equivalent to 10 /8s, 208 /16s and 58 /24s
Percentage of available ARIN address space announced: 67.6
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: 19739
Total RIPE prefixes after maximum aggregation: 14932
Prefixes being announced from the RIPE address blocks: 16413
Unique aggregates announced from the RIPE address blocks: 10866
RIPE Region origin ASes present in the Internet Routing Table: 4095
RIPE Region origin ASes announcing only one prefix: 2220
RIPE Region transit ASes present in the Internet Routing Table: 764
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 115626048
Equivalent to 6 /8s, 228 /16s and 80 /24s
Percentage of available RIPE address space announced: 76.6
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: 4706
Total LACNIC prefixes after maximum aggregation: 2073
Prefixes being announced from the LACNIC address blocks: 4145
Unique aggregates announced from the LACNIC address blocks: 2627
LACNIC Region origin ASes present in the Internet Routing Table: 316
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11428096
Equivalent to 0 /8s, 174 /16s and 97 /24s
Percentage of available LACNIC address space announced: 68.1
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 1201 1187 883 Telstra Pty Ltd
703 399 375 315 UUNET
2907 361 1831 341 SINET Japan
2764 342 356 314 connect.com.au pty ltd
7474 303 275 207 Optus Communications Pty Ltd
4134 293 2268 96 Data Communications Bureau
17557 293 22 114 Pakistan Telecom
4755 269 139 75 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 224 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 187 57 72 Primus Telecommunications
9583 176 32 5 Satyam Infoway Ltd.,
4515 136 102 77 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 128 736 122 TTnet
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
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1792 9216 1286 UUNET Technologies, Inc.
7018 1342 7180 936 AT&T
3908 1053 1652 507 Supernet, Inc.
1239 873 3186 653 Sprint
852 736 1145 457 Telus Advanced Communications
7843 722 371 308 Adelphia Corp.
1 661 8059 438 GENUITY
7132 593 672 69 Southwestern Bell Internet Se
209 577 2064 334 Qwest
7046 574 878 299 UUNET Technologies, Inc.
4323 520 439 165 Time Warner Communications, I
690 518 75 325 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
2548 445 1118 275 Business Internet, Inc.
705 409 130 199 UUNET Technologies, Inc.
3549 407 725 293 Global Crossing
6197 391 601 40 BellSouth Network Solutions,
4355 379 292 104 EarthLink, Inc.
2914 367 2027 360 Verio, Inc.
15290 358 230 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 872 2407 726 UUNET - Commercial IP service
3301 385 1164 337 TeliaNet Sweden
3215 296 677 172 France Telecom Transpac
3320 248 1966 225 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 213 783 176 Sonera Solution Autonomous Sy
1257 205 444 201 SWIPnet Swedish IP Network
5400 205 83 97 BT Ignite European Backbone
719 192 307 131 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
8708 164 41 147 Romania Data Systems S.A.
2856 160 790 138 BTnet UK Regional network
3303 144 532 143 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
3246 122 373 115 Song Networks
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 203 314 112 UniNet S.A. de C.V.
7303 174 27 49 Telecom Argentina Stet-France
11172 170 88 35 Servicios Alestra S.A de C.V
6503 150 174 108 AVANTEL, S.A.
6140 115 76 28 ImpSat USA, Inc.
16814 106 7 12 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11340 79 2 24 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 74 425 41 Fundacao de Amparo a Pesquisa
11992 73 7 31 Integrated Systems
15034 73 5 33 TIBA SA
4270 68 18 10 Red de Interconexion Universi
7984 64 27 42 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 61 16 3 ECUANET - CORPORACION ECUATOR
8065 60 6 16 Empresas Publicas de Medellin
7927 58 4 40 Global One Venezuela
16528 57 5 35 ImpSat S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1053 546 Supernet, Inc.
7132 593 524 Southwestern Bell Internet Se
7843 722 414 Adelphia Corp.
7018 1342 406 AT&T
4323 520 355 Time Warner Communications, I
6197 391 351 BellSouth Network Solutions,
1221 1201 318 Telstra Pty Ltd
1580 319 307 ANOSCEUR
18566 297 293 Covad Communications
852 736 279 Telus Advanced Communications
4151 292 276 USDA
7046 574 275 UUNET Technologies, Inc.
4355 379 275 EarthLink, Inc.
6347 343 268 SAVVIS Communications Corpora
209 577 243 Qwest
7066 490 233 Virginia Polytechnic Institut
376 341 231 Reseau Interordinateurs Scien
1 661 223 GENUITY
1239 873 220 Sprint
705 409 210 UUNET Technologies, Inc.
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 /12:38
/13:90 /14:238 /15:429 /16:7276 /17:1500 /18:2717
/19:7874 /20:7528 /21:5306 /22:8137 /23:9904 /24:63745
/25:176 /26:215 /27:116 /28:76 /29:53 /30:101
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 624 1053 Supernet, Inc.
702 537 872 UUNET - Commercial IP service
7843 534 722 Adelphia Corp.
701 492 1792 UUNET Technologies, Inc.
690 465 518 Merit Network
7018 425 1342 AT&T
7066 388 490 Virginia Polytechnic Institut
1580 306 319 ANOSCEUR
18566 291 297 Covad Communications
6197 275 391 BellSouth Network Solutions,
7046 261 574 UUNET Technologies, Inc.
1239 259 873 Sprint
209 258 577 Qwest
6198 247 318 BellSouth Network Solutions,
3301 230 385 TeliaNet Sweden
3215 227 296 France Telecom Transpac
11492 219 224 Cable One
4355 217 379 EarthLink, Inc.
3320 189 248 Deutsche Telekom AG
705 186 409 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:559 13:10 15:4 17:7 20:4
24:837 25:1 32:42 38:24 40:8 44:1
55:1 57:14 61:356 62:247 63:1892 64:1294
65:1572 66:1208 67:110 68:132 69:1 80:300
81:62 128:119 129:126 130:19 131:54 132:9
133:2 134:126 135:9 136:513 137:104 138:164
139:71 140:167 141:66 142:70 143:49 144:153
145:17 146:240 147:223 148:249 149:80 150:41
151:73 152:295 153:38 154:8 155:104 156:102
157:104 158:72 159:139 160:21 161:74 162:123
163:87 164:260 165:127 166:104 167:274 168:299
169:62 170:185 171:3 192:5389 193:2385 194:2022
195:819 196:439 198:3621 199:3084 200:2553 202:3447
203:4807 204:3042 205:2116 206:2389 207:2489 208:2557
209:2577 210:595 211:248 212:888 213:776 214:9
215:19 216:2983 217:526 218:48 219:2
End of report
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