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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 11 Apr, 2003
Analysis Summary
----------------
BGP routing table entries examined: 123936
Prefixes after maximum aggregation: 78266
Unique aggregates announced to Internet: 59188
Total ASes present in the Internet Routing Table: 14966
Origin-only ASes present in the Internet Routing Table: 12968
Origin ASes announcing only one prefix: 5874
Transit ASes present in the Internet Routing Table: 1998
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 22
Number of addresses announced to Internet: 1223862048
Equivalent to 72 /8s, 242 /16s and 167 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 58398
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20706
Total APNIC prefixes after maximum aggregation: 12164
Prefixes being announced from the APNIC address blocks: 19125
Unique aggregates announced from the APNIC address blocks: 11855
APNIC Region origin ASes present in the Internet Routing Table: 1766
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 109821440
Equivalent to 6 /8s, 139 /16s and 190 /24s
Percentage of available APNIC address space announced: 59.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76578
Total ARIN prefixes after maximum aggregation: 48152
Prefixes being announced from the ARIN address blocks: 54839
Unique aggregates announced from the ARIN address blocks: 16707
ARIN Region origin ASes present in the Internet Routing Table: 8299
ARIN Region origin ASes announcing only one prefix: 2822
ARIN Region transit ASes present in the Internet Routing Table: 800
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190156544
Equivalent to 11 /8s, 85 /16s and 143 /24s
Percentage of available ARIN address space announced: 70.8
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, 29695 - 30719
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: 21391
Total RIPE prefixes after maximum aggregation: 15745
Prefixes being announced from the RIPE address blocks: 17898
Unique aggregates announced from the RIPE address blocks: 11974
RIPE Region origin ASes present in the Internet Routing Table: 4497
RIPE Region origin ASes announcing only one prefix: 2448
RIPE Region transit ASes present in the Internet Routing Table: 808
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 129014784
Equivalent to 7 /8s, 176 /16s and 156 /24s
Percentage of available RIPE address space announced: 76.9
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, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5259
Total LACNIC prefixes after maximum aggregation: 2205
Prefixes being announced from the LACNIC address blocks: 4681
Unique aggregates announced from the LACNIC address blocks: 2964
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12425728
Equivalent to 0 /8s, 189 /16s and 154 /24s
Percentage of available LACNIC address space announced: 37.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1098 1105 788 Telstra Pty Ltd
703 394 365 313 UUNET
2907 379 1974 358 SINET Japan
17557 379 28 140 Pakistan Telecom
2764 323 341 291 connect.com.au pty ltd
7474 271 276 207 Optus Communications Pty Ltd
4814 270 79 15 China Telecom (Group)
3786 245 775 212 DACOM Corporation
17676 239 3686 26 XTAGE CORPORATION
4755 234 135 74 Videsh Sanchar Nigam Ltd. Aut
4134 233 1999 122 Data Communications Bureau
9583 220 33 14 Satyam Infoway Ltd.,
4766 212 2078 157 Korea Internet Exchange for "
9443 180 58 79 Primus Telecommunications
9800 175 244 53 CHINA UNICOM
9238 140 8 17 TATA ISP
7476 137 182 29 The University of Queensland
4716 128 731 122 TTnet
4739 128 57 117 Commerical Internet eXchange
9498 126 9 10 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1585 8910 1120 UUNET Technologies, Inc.
7018 1358 7154 939 AT&T
1239 966 3120 680 Sprint
3908 934 1571 478 Supernet, Inc.
7132 801 6147 413 Southwestern Bell Internet Se
1 771 2846 493 GENUITY
189 706 341 291 Genuity
4151 680 691 58 USDA
7843 645 401 163 Adelphia Corp.
3561 585 2351 337 Cable & Wireless USA
4323 569 514 166 Time Warner Communications, I
852 549 1110 430 Telus Advanced Communications
18566 539 128 6 Covad Communications
209 535 2140 302 Qwest
2386 506 481 273 AT&T Data Communications Serv
690 502 73 318 Merit Network
705 486 229 214 UUNET Technologies, Inc.
7066 484 204 255 Virginia Polytechnic Institut
6197 476 338 196 BellSouth Network Solutions,
6198 454 226 174 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 776 2202 643 UUNET - Commercial IP service
3215 320 851 175 France Telecom Transpac
3301 311 1174 301 TeliaNet Sweden
3320 269 1997 231 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 216 327 190 SWIPnet Swedish IP Network
5400 196 97 110 BT Ignite European Backbone
5515 196 779 168 Sonera Solution Autonomous Sy
719 195 307 125 LANLINK autonomous system
786 180 1874 180 The JANET IP Service
8220 169 298 159 COLT Internet - International
20858 161 17 3 This AS will be used to conne
8708 151 44 147 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
12302 126 18 33 MobiFon S.A.
2856 119 1298 109 BTnet UK Regional network
3269 112 755 63 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 107 11 12 RNC - Romanian Natioanal R&D
3352 106 734 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 294 99 105 ImpSat
7303 243 36 57 Telecom Argentina Stet-France
8151 217 334 119 UniNet S.A. de C.V.
11172 163 66 33 Servicios Alestra S.A de C.V
6503 154 207 108 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 109 3 37 Red Universitaria Nacional
6147 90 62 20 Telefonica Del Peru
11992 90 9 36 Integrated Systems
1916 75 306 45 Fundacao de Amparo a Pesquisa
6535 74 5 19 Chilesat Servicios Empresari
8065 74 6 15 Empresas Publicas de Medellin
13999 74 36 8 Mega Cable S.A. de C.V.
15311 72 28 36 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
11830 65 4 26 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
7984 61 11 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 680 622 USDA
18566 539 533 Covad Communications
7843 645 482 Adelphia Corp.
3908 934 456 Supernet, Inc.
7018 1358 419 AT&T
189 706 415 Genuity
4323 569 403 Time Warner Communications, I
7132 801 388 Southwestern Bell Internet Se
1221 1098 310 Telstra Pty Ltd
6347 370 288 SAVVIS Communications Corpora
1239 966 286 Sprint
6197 476 280 BellSouth Network Solutions,
6198 454 280 BellSouth Network Solutions,
1 771 278 GENUITY
705 486 272 UUNET Technologies, Inc.
4355 373 272 EarthLink, Inc.
22927 286 272 TELEFONICA DE ARGENTINA
4814 270 255 China Telecom (Group)
3561 585 248 Cable & Wireless USA
27364 266 248 Armstrong Cable Services
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
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.16.52.0/24 1239 Sprint
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.75.199.0/24 25745 Alentus Corporation
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.158.251.0/24 27321 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
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 /9:5 /10:8 /11:13 /12:47
/13:92 /14:251 /15:463 /16:7386 /17:1639 /18:2955
/19:8310 /20:8192 /21:5918 /22:8850 /23:10622 /24:68602
/25:172 /26:192 /27:58 /28:37 /29:22 /30:47
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 706 Genuity
3908 593 934 Supernet, Inc.
18566 533 539 Covad Communications
702 482 776 UUNET - Commercial IP service
7018 476 1358 AT&T
701 465 1585 UUNET Technologies, Inc.
690 451 502 Merit Network
7843 392 645 Adelphia Corp.
7066 383 484 Virginia Polytechnic Institut
1239 366 966 Sprint
6198 358 454 BellSouth Network Solutions,
6197 355 476 BellSouth Network Solutions,
11305 318 341 Interland Incorporated
2386 302 506 AT&T Data Communications Serv
20115 299 426 Charter Communications
22927 285 286 TELEFONICA DE ARGENTINA
6140 281 294 ImpSat
1 272 771 GENUITY
27364 259 266 Armstrong Cable Services
3215 243 320 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 12:675 13:1 15:4 17:2 20:9
24:801 25:1 32:86 38:64 40:18 44:2
55:1 57:17 61:407 62:517 63:1879 64:1553
65:1915 66:2336 67:161 68:337 69:101 80:330
81:128 128:149 129:180 130:45 131:134 132:11
133:2 134:150 135:4 136:113 137:111 138:106
139:66 140:119 141:91 142:95 143:48 144:111
145:16 146:266 147:93 148:249 149:71 150:46
151:68 152:248 153:57 154:2 155:107 156:46
157:46 158:124 159:141 160:34 161:60 162:128
163:80 164:311 165:136 166:75 167:326 168:366
169:56 170:309 171:7 192:5359 193:2417 194:1987
195:994 196:464 198:3560 199:3373 200:2908 202:3675
203:5069 204:3073 205:2019 206:2430 207:2416 208:2662
209:2872 210:748 211:338 212:990 213:772 214:20
215:21 216:3298 217:637 218:84 219:13 220:54
End of report
