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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 13 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127226
Prefixes after maximum aggregation: 79361
Unique aggregates announced to Internet: 60105
Total ASes present in the Internet Routing Table: 15497
Origin-only ASes present in the Internet Routing Table: 13428
Origin ASes announcing only one prefix: 6101
Transit ASes present in the Internet Routing Table: 2069
Transit-only ASes present in the Internet Routing Table: 69
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: 15
Number of addresses announced to Internet: 1238115168
Equivalent to 73 /8s, 204 /16s and 35 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56418
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21942
Total APNIC prefixes after maximum aggregation: 12644
Prefixes being announced from the APNIC address blocks: 20378
Unique aggregates announced from the APNIC address blocks: 12353
APNIC Region origin ASes present in the Internet Routing Table: 1854
APNIC Region origin ASes announcing only one prefix: 533
APNIC Region transit ASes present in the Internet Routing Table: 301
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 117110816
Equivalent to 6 /8s, 250 /16s and 248 /24s
Percentage of available APNIC address space announced: 63.1
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: 77490
Total ARIN prefixes after maximum aggregation: 48269
Prefixes being announced from the ARIN address blocks: 55228
Unique aggregates announced from the ARIN address blocks: 16666
ARIN Region origin ASes present in the Internet Routing Table: 8513
ARIN Region origin ASes announcing only one prefix: 2908
ARIN Region transit ASes present in the Internet Routing Table: 824
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 194865664
Equivalent to 11 /8s, 157 /16s and 106 /24s
Percentage of available ARIN address space announced: 72.6
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, 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: 22423
Total RIPE prefixes after maximum aggregation: 16171
Prefixes being announced from the RIPE address blocks: 18830
Unique aggregates announced from the RIPE address blocks: 12451
RIPE Region origin ASes present in the Internet Routing Table: 4721
RIPE Region origin ASes announcing only one prefix: 2567
RIPE Region transit ASes present in the Internet Routing Table: 844
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 133208256
Equivalent to 7 /8s, 240 /16s and 152 /24s
Percentage of available RIPE address space announced: 72.2
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: 5369
Total LACNIC prefixes after maximum aggregation: 2277
Prefixes being announced from the LACNIC address blocks: 4827
Unique aggregates announced from the LACNIC address blocks: 3087
LACNIC Region origin ASes present in the Internet Routing Table: 340
LACNIC Region origin ASes announcing only one prefix: 93
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12836096
Equivalent to 0 /8s, 195 /16s and 221 /24s
Percentage of available LACNIC address space announced: 38.3
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 1045 1069 737 Telstra Pty Ltd
4755 409 132 60 Videsh Sanchar Nigam Ltd. Aut
2907 373 1895 349 SINET Japan
17557 350 24 150 Pakistan Telecom
703 333 370 266 UUNET
2764 307 325 274 connect.com.au pty ltd
7474 269 306 201 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 777 210 DACOM Corporation
9583 237 37 22 Satyam Infoway Ltd.,
4134 227 1912 112 Data Communications Bureau
4766 223 2476 166 Korea Internet Exchange for "
9800 189 306 58 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 173 11 22 BHARTI BT INTERNET LTD.
4538 168 1506 21 China Education and Research
9929 167 170 34 China Netcom Corp.
4739 141 58 130 Commerical Internet eXchange
9238 137 8 23 TATA ISP
4716 132 745 126 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1528 8831 1074 UUNET Technologies, Inc.
7018 1341 7165 925 AT&T
1239 958 2998 668 Sprint
3908 894 1515 469 Supernet, Inc.
7132 840 6591 232 Southwestern Bell Internet Se
189 685 372 307 Genuity
18566 639 160 8 Covad Communications
4323 610 526 175 Time Warner Communications, I
7843 587 373 229 Adelphia Corp.
1 572 2456 385 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 527 367 221 BellSouth Network Solutions,
209 515 2190 302 Qwest
7066 489 204 259 Virginia Polytechnic Institut
705 487 192 308 UUNET Technologies, Inc.
6198 480 268 183 BellSouth Network Solutions,
20115 460 195 282 Charter Communications
690 448 64 294 Merit Network
2386 407 541 232 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1017 2170 618 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 239 801 136 France Telecom Transpac
8220 233 386 221 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 225 308 183 SWIPnet Swedish IP Network
5400 199 142 116 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 142 549 139 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 126 1315 117 BTnet UK Regional network
3246 122 373 118 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 107 796 32 Ibernet, Internet Access Netw
5511 98 179 75 France Telecom
2647 97 4129 40 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 106 ImpSat
7303 236 37 59 Telecom Argentina Stet-France
8151 220 334 116 UniNet S.A. de C.V.
11172 173 69 42 Servicios Alestra S.A de C.V
11340 140 4 48 Red Universitaria Nacional
16814 135 9 17 NSS, S.A.
6503 132 189 95 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
6147 89 70 21 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
15311 74 14 38 Telefonica Empresas
1916 73 306 43 Fundacao de Amparo a Pesquisa
11830 70 5 29 Instituto Costarricense de El
4270 66 18 9 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 6 39 Global One Venezuela
7984 60 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 639 631 Covad Communications
7132 840 608 Southwestern Bell Internet Se
11305 549 477 Interland Incorporated
4323 610 435 Time Warner Communications, I
3908 894 425 Supernet, Inc.
7018 1341 416 AT&T
702 1017 399 UUNET - Commercial IP service
189 685 378 Genuity
7843 587 358 Adelphia Corp.
4755 409 349 Videsh Sanchar Nigam Ltd. Aut
1221 1045 308 Telstra Pty Ltd
6197 527 306 BellSouth Network Solutions,
6198 480 297 BellSouth Network Solutions,
4355 406 295 EarthLink, Inc.
1239 958 290 Sprint
27364 307 289 Armstrong Cable Services
6347 363 281 SAVVIS Communications Corpora
22909 278 265 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 374 250 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65030 PRIVATE 61.95.250.0/24 9498 BHARTI BT INTERNET L
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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
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
192.153.136.0/21 568 DISO-UNRRA
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 /9:5 /10:8 /11:13 /12:54
/13:97 /14:260 /15:474 /16:7427 /17:1724 /18:3057
/19:8605 /20:8614 /21:6299 /22:9201 /23:10767 /24:69956
/25:173 /26:291 /27:71 /28:39 /29:22 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 711 1017 UUNET - Commercial IP service
18566 633 639 Covad Communications
189 605 685 Genuity
3908 573 894 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 473 1341 AT&T
701 433 1528 UUNET Technologies, Inc.
690 406 448 Merit Network
6197 398 527 BellSouth Network Solutions,
7066 385 489 Virginia Polytechnic Institut
6198 374 480 BellSouth Network Solutions,
1239 361 958 Sprint
7843 337 587 Adelphia Corp.
20115 320 460 Charter Communications
27364 301 307 Armstrong Cable Services
25844 258 258 Skadden, Arps, Slate, Meagher
4355 216 406 EarthLink, Inc.
1 214 572 GENUITY
3320 210 268 Deutsche Telekom AG
705 205 487 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:703 13:1 15:4 16:1 17:3
20:6 24:856 25:1 32:98 38:42 40:22
44:2 57:15 61:260 62:363 63:1873 64:1776
65:1968 66:2565 67:196 68:374 69:195 80:393
81:121 82:6 128:144 129:220 130:52 131:81
132:24 134:175 135:7 136:120 137:117 138:114
139:65 140:167 141:120 142:94 143:44 144:99
145:13 146:280 147:95 148:289 149:62 150:88
151:70 152:233 153:101 154:3 155:119 156:57
157:46 158:122 159:140 160:45 161:75 162:375
163:77 164:319 165:142 166:96 167:321 168:168
169:110 170:319 171:8 192:5343 193:2602 194:1983
195:1127 196:470 198:3581 199:2707 200:2963 202:3925
203:5249 204:2974 205:2048 206:2316 207:2440 208:2579
209:2864 210:851 211:358 212:1021 213:878 214:19
215:23 216:3438 217:670 218:95 219:65 220:97
221:8
End of report
