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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126676
Prefixes after maximum aggregation: 79239
Unique aggregates announced to Internet: 59891
Total ASes present in the Internet Routing Table: 15448
Origin-only ASes present in the Internet Routing Table: 13388
Origin ASes announcing only one prefix: 6066
Transit ASes present in the Internet Routing Table: 2060
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1252853344
Equivalent to 74 /8s, 173 /16s and 6 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 56147
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21743
Total APNIC prefixes after maximum aggregation: 12656
Prefixes being announced from the APNIC address blocks: 20160
Unique aggregates announced from the APNIC address blocks: 12346
APNIC Region origin ASes present in the Internet Routing Table: 1849
APNIC Region origin ASes announcing only one prefix: 529
APNIC Region transit ASes present in the Internet Routing Table: 304
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 116739872
Equivalent to 6 /8s, 245 /16s and 79 /24s
Percentage of available APNIC address space announced: 62.9
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: 77225
Total ARIN prefixes after maximum aggregation: 48155
Prefixes being announced from the ARIN address blocks: 55093
Unique aggregates announced from the ARIN address blocks: 16551
ARIN Region origin ASes present in the Internet Routing Table: 8490
ARIN Region origin ASes announcing only one prefix: 2896
ARIN Region transit ASes present in the Internet Routing Table: 818
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 194009600
Equivalent to 11 /8s, 144 /16s and 90 /24s
Percentage of available ARIN address space announced: 72.3
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: 22317
Total RIPE prefixes after maximum aggregation: 16140
Prefixes being announced from the RIPE address blocks: 18731
Unique aggregates announced from the RIPE address blocks: 12364
RIPE Region origin ASes present in the Internet Routing Table: 4693
RIPE Region origin ASes announcing only one prefix: 2552
RIPE Region transit ASes present in the Internet Routing Table: 838
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132791232
Equivalent to 7 /8s, 234 /16s and 59 /24s
Percentage of available RIPE address space announced: 72.0
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: 5389
Total LACNIC prefixes after maximum aggregation: 2288
Prefixes being announced from the LACNIC address blocks: 4822
Unique aggregates announced from the LACNIC address blocks: 3065
LACNIC Region origin ASes present in the Internet Routing Table: 338
LACNIC Region origin ASes announcing only one prefix: 89
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 12817920
Equivalent to 0 /8s, 195 /16s and 150 /24s
Percentage of available LACNIC address space announced: 38.2
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 1055 1069 746 Telstra Pty Ltd
4755 404 132 59 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 345 24 150 Pakistan Telecom
703 334 370 267 UUNET
2764 305 325 272 connect.com.au pty ltd
7474 268 306 200 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 777 210 DACOM Corporation
9583 232 37 20 Satyam Infoway Ltd.,
4134 227 1916 113 Data Communications Bureau
4766 222 2475 166 Korea Internet Exchange for "
9800 190 307 58 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 168 11 28 BHARTI BT INTERNET LTD.
9929 158 170 34 China Netcom Corp.
4739 141 58 130 Commerical Internet eXchange
9238 138 8 20 TATA ISP
4716 132 745 126 TTnet
7539 128 139 102 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1528 8800 1074 UUNET Technologies, Inc.
7018 1334 7183 919 AT&T
1239 951 2998 665 Sprint
3908 901 1517 471 Supernet, Inc.
7132 838 6606 232 Southwestern Bell Internet Se
189 689 372 298 Genuity
18566 613 160 8 Covad Communications
4323 610 526 177 Time Warner Communications, I
7843 607 360 237 Adelphia Corp.
1 582 2474 387 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 523 366 219 BellSouth Network Solutions,
209 517 2126 304 Qwest
705 510 271 327 UUNET Technologies, Inc.
7066 488 204 261 Virginia Polytechnic Institut
6198 477 267 181 BellSouth Network Solutions,
20115 460 195 282 Charter Communications
690 448 64 294 Merit Network
2386 408 541 230 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1021 2170 627 UUNET - Commercial IP service
3301 293 1169 281 TeliaNet Sweden
3320 268 2004 229 Deutsche Telekom AG
719 266 307 125 LANLINK autonomous system
3215 245 785 140 France Telecom Transpac
8220 233 386 221 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 223 307 185 SWIPnet Swedish IP Network
5400 202 140 121 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 154 44 150 Romania Data Systems S.A.
3303 141 549 138 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 115 BTnet UK Regional network
3246 122 373 118 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 110 796 32 Ibernet, Internet Access Netw
5511 96 177 74 France Telecom
6746 88 12 75 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 106 ImpSat
7303 236 37 60 Telecom Argentina Stet-France
8151 213 334 114 UniNet S.A. de C.V.
11172 170 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 134 205 96 AVANTEL, S.A.
11340 122 3 42 Red Universitaria Nacional
10620 115 7 32 TVCABLE BOGOTA
6147 98 70 20 Telefonica Del Peru
11992 87 8 37 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 80 9 16 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 72 12 36 Telefonica Empresas
4270 68 18 9 Red de Interconexion Universi
11830 68 5 28 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 6 39 Global One Venezuela
15034 62 5 34 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 838 606 Southwestern Bell Internet Se
18566 613 605 Covad Communications
11305 549 477 Interland Incorporated
4323 610 433 Time Warner Communications, I
3908 901 430 Supernet, Inc.
7018 1334 415 AT&T
702 1021 394 UUNET - Commercial IP service
189 689 391 Genuity
7843 607 370 Adelphia Corp.
4755 404 345 Videsh Sanchar Nigam Ltd. Aut
1221 1055 309 Telstra Pty Ltd
6197 523 304 BellSouth Network Solutions,
6198 477 296 BellSouth Network Solutions,
4355 400 291 EarthLink, Inc.
27364 305 287 Armstrong Cable Services
1239 951 286 Sprint
6347 363 282 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 380 251 Reseau Interordinateurs Scien
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
64732 PRIVATE 202.38.166.0/23 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
172.208.0.0/14 1668 GNN Hosting Service
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.149.62.0/23 29839 RegistryPro, Inc.
192.153.136.0/21 568 DISO-UNRRA
192.158.254.0/24 705 UUNET Technologies, Inc.
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:7 /10:8 /11:13 /12:54
/13:97 /14:258 /15:473 /16:7419 /17:1717 /18:3041
/19:8526 /20:8530 /21:6254 /22:9179 /23:10735 /24:69751
/25:159 /26:258 /27:67 /28:39 /29:22 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 715 1021 UUNET - Commercial IP service
189 610 689 Genuity
18566 607 613 Covad Communications
3908 576 901 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 469 1334 AT&T
701 431 1528 UUNET Technologies, Inc.
690 406 448 Merit Network
6197 394 523 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
6198 373 477 BellSouth Network Solutions,
7843 370 607 Adelphia Corp.
1239 355 951 Sprint
20115 320 460 Charter Communications
27364 299 305 Armstrong Cable Services
25844 258 258 Skadden, Arps, Slate, Meagher
1 221 582 GENUITY
4355 215 400 EarthLink, Inc.
3320 209 268 Deutsche Telekom AG
705 208 510 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:703 13:1 15:4 16:1 17:3
20:7 24:852 25:1 32:93 38:42 40:21
44:2 57:17 61:264 62:357 63:1871 64:1771
65:1965 66:2551 67:194 68:382 69:172 80:395
81:128 82:3 128:142 129:166 130:52 131:80
132:26 134:175 135:4 136:114 137:105 138:113
139:67 140:167 141:117 142:94 143:44 144:106
145:13 146:281 147:95 148:289 149:62 150:83
151:70 152:233 153:101 154:3 155:119 156:57
157:45 158:129 159:140 160:45 161:75 162:378
163:80 164:321 165:143 166:95 167:322 168:175
169:105 170:323 171:8 192:5340 193:2598 194:1986
195:1095 196:472 198:3592 199:2702 200:2957 202:3875
203:5226 204:2976 205:2047 206:2335 207:2434 208:2607
209:2877 210:853 211:364 212:1015 213:864 214:19
215:23 216:3428 217:649 218:91 219:57 220:97
221:8
End of report
