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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 03 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117614
Prefixes after maximum aggregation: 75495
Unique aggregates announced to Internet: 56526
Total ASes present in the Internet Routing Table: 14151
Origin-only ASes present in the Internet Routing Table: 12262
Origin ASes announcing only one prefix: 5544
Transit ASes present in the Internet Routing Table: 1889
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1185373293
Equivalent to 70 /8s, 167 /16s and 92 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 53887
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19075
Total APNIC prefixes after maximum aggregation: 11404
Prefixes being announced from the APNIC address blocks: 17574
Unique aggregates announced from the APNIC address blocks: 11101
APNIC Region origin ASes present in the Internet Routing Table: 1642
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 100783792
Equivalent to 6 /8s, 1 /16s and 214 /24s
Percentage of available APNIC address space announced: 66.3
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: 73531
Total ARIN prefixes after maximum aggregation: 46861
Prefixes being announced from the ARIN address blocks: 51098
Unique aggregates announced from the ARIN address blocks: 15692
ARIN Region origin ASes present in the Internet Routing Table: 7947
ARIN Region origin ASes announcing only one prefix: 2672
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: 17
Number of ARIN addresses announced to Internet: 183741664
Equivalent to 10 /8s, 243 /16s and 172 /24s
Percentage of available ARIN address space announced: 68.4
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: 20100
Total RIPE prefixes after maximum aggregation: 15134
Prefixes being announced from the RIPE address blocks: 16729
Unique aggregates announced from the RIPE address blocks: 11214
RIPE Region origin ASes present in the Internet Routing Table: 4177
RIPE Region origin ASes announcing only one prefix: 2265
RIPE Region transit ASes present in the Internet Routing Table: 766
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 120905920
Equivalent to 7 /8s, 52 /16s and 224 /24s
Percentage of available RIPE address space announced: 80.1
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, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4908
Total LACNIC prefixes after maximum aggregation: 2096
Prefixes being announced from the LACNIC address blocks: 4291
Unique aggregates announced from the LACNIC address blocks: 2774
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11731200
Equivalent to 0 /8s, 179 /16s and 1 /24s
Percentage of available LACNIC address space announced: 69.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1161 1168 843 Telstra Pty Ltd
703 396 364 310 UUNET
2907 354 1751 333 SINET Japan
2764 340 341 309 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 306 280 203 Optus Communications Pty Ltd
4134 299 2377 100 Data Communications Bureau
4755 264 135 67 Videsh Sanchar Nigam Ltd. Aut
4814 247 79 15 China Telecom (Group)
17676 230 3570 27 XTAGE CORPORATION
4766 226 1807 150 Korea Internet Exchange for "
9583 186 33 12 Satyam Infoway Ltd.,
9443 184 57 73 Primus Telecommunications
9768 135 386 64 Korea Telecom
4716 130 724 124 TTnet
9800 129 190 30 CHINA UNICOM
7657 126 25 91 The Internet Group Limited
4621 120 11 67 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
4515 112 102 47 Star Internet Services Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1743 9041 1245 UUNET Technologies, Inc.
7018 1397 7133 976 AT&T
3908 1197 1652 505 Supernet, Inc.
1239 913 3172 654 Sprint
1 663 8090 437 GENUITY
852 659 1146 464 Telus Advanced Communications
7843 655 396 276 Adelphia Corp.
7046 585 860 283 UUNET Technologies, Inc.
4323 526 455 167 Time Warner Communications, I
209 523 2048 337 Qwest
690 506 74 319 Merit Network
7066 491 204 258 Virginia Polytechnic Institut
6197 445 236 203 BellSouth Network Solutions,
705 438 134 198 UUNET Technologies, Inc.
3561 413 2234 354 Cable & Wireless USA
6198 413 177 197 BellSouth Network Solutions,
3549 405 742 296 Global Crossing
4355 403 313 118 EarthLink, Inc.
15290 389 214 174 AT&T Canada IES
18566 383 96 5 Covad Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 816 2329 680 UUNET - Commercial IP service
3301 380 1163 335 TeliaNet Sweden
3215 308 805 171 France Telecom Transpac
3320 245 1964 222 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 213 416 203 SWIPnet Swedish IP Network
5515 210 783 175 Sonera Solution Autonomous Sy
719 192 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 69 98 BT Ignite European Backbone
8708 151 41 145 Romania Data Systems S.A.
3303 145 517 144 Swisscom Ltd
2856 143 1302 131 BTnet UK Regional network
20858 141 17 4 This AS will be used to conne
12302 123 18 30 MobiFon S.A.
8220 120 174 112 COLT Internet - International
3246 119 379 116 Song Networks
3269 111 752 63 TELECOM ITALIA
5511 103 192 84 France Telecom
2874 102 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 269 114 58 ImpSat USA, Inc.
8151 207 332 112 UniNet S.A. de C.V.
7303 182 28 46 Telecom Argentina Stet-France
11172 165 86 33 Servicios Alestra S.A de C.V
6503 156 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
6147 79 57 23 Telefonica Del Peru
11340 78 2 29 Red Universitaria Nacional
1916 73 409 40 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 28 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 65 12 41 Global One Colombia
4926 63 4 51 Telintar S.A.
15034 61 6 33 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1197 692 Supernet, Inc.
7018 1397 421 AT&T
7843 655 379 Adelphia Corp.
18566 383 378 Covad Communications
4323 526 359 Time Warner Communications, I
1221 1161 318 Telstra Pty Ltd
7046 585 302 UUNET Technologies, Inc.
1580 315 302 ANOSCEUR
4151 353 295 USDA
6347 364 289 SAVVIS Communications Corpora
4355 403 285 EarthLink, Inc.
22927 283 263 TELEFONICA DE ARGENTINA
11492 272 260 Cable One
1239 913 259 Sprint
6197 445 242 BellSouth Network Solutions,
705 438 240 UUNET Technologies, Inc.
376 342 238 Reseau Interordinateurs Scien
7066 491 233 Virginia Polytechnic Institut
4814 247 232 China Telecom (Group)
1 663 226 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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
156.108.0.0/16 14041 Colorado State University / A
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 /9:3 /10:8 /11:11 /12:46
/13:91 /14:239 /15:439 /16:7312 /17:1522 /18:2763
/19:7947 /20:7610 /21:5423 /22:8275 /23:9962 /24:65051
/25:144 /26:177 /27:89 /28:96 /29:69 /30:246
/31:19 /32:55
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 746 1197 Supernet, Inc.
701 509 1743 UUNET Technologies, Inc.
702 499 816 UUNET - Commercial IP service
7018 460 1397 AT&T
690 455 506 Merit Network
7843 447 655 Adelphia Corp.
7066 388 491 Virginia Polytechnic Institut
18566 376 383 Covad Communications
6197 334 445 BellSouth Network Solutions,
6198 332 413 BellSouth Network Solutions,
1239 306 913 Sprint
1580 301 315 ANOSCEUR
22927 282 283 TELEFONICA DE ARGENTINA
7046 278 585 UUNET Technologies, Inc.
11492 270 272 Cable One
6140 257 269 ImpSat USA, Inc.
3215 235 308 France Telecom Transpac
3301 227 380 TeliaNet Sweden
11537 227 233 University Corporation for Ad
4355 223 403 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:608 13:10 15:4 17:3 20:5
24:845 25:1 32:46 38:28 40:15 44:1
55:1 57:15 61:373 62:405 63:1865 64:1295
65:1657 66:1228 67:188 68:182 69:23 80:320
81:77 128:119 129:170 130:19 131:67 132:9
133:2 134:154 135:7 136:494 137:111 138:216
139:81 140:154 141:92 142:90 143:46 144:148
145:18 146:250 147:246 148:268 149:76 150:43
151:86 152:288 153:36 154:7 155:100 156:106
157:50 158:111 159:156 160:21 161:71 162:139
163:88 164:257 165:127 166:94 167:295 168:382
169:56 170:272 171:6 192:5419 193:2338 194:2012
195:847 196:458 198:3584 199:3077 200:2637 202:3491
203:4800 204:3217 205:2102 206:2361 207:2467 208:2583
209:2636 210:618 211:279 212:874 213:766 214:12
215:21 216:3021 217:529 218:64 219:13 220:1
End of report
