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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 09 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126846
Prefixes after maximum aggregation: 79227
Unique aggregates announced to Internet: 59897
Total ASes present in the Internet Routing Table: 15467
Origin-only ASes present in the Internet Routing Table: 13412
Origin ASes announcing only one prefix: 6079
Transit ASes present in the Internet Routing Table: 2055
Transit-only ASes present in the Internet Routing Table: 73
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: 1243029344
Equivalent to 74 /8s, 23 /16s and 31 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56191
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21890
Total APNIC prefixes after maximum aggregation: 12615
Prefixes being announced from the APNIC address blocks: 20349
Unique aggregates announced from the APNIC address blocks: 12309
APNIC Region origin ASes present in the Internet Routing Table: 1852
APNIC Region origin ASes announcing only one prefix: 528
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: 122925856
Equivalent to 7 /8s, 83 /16s and 179 /24s
Percentage of available APNIC address space announced: 66.2
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: 77242
Total ARIN prefixes after maximum aggregation: 48175
Prefixes being announced from the ARIN address blocks: 55101
Unique aggregates announced from the ARIN address blocks: 16582
ARIN Region origin ASes present in the Internet Routing Table: 8490
ARIN Region origin ASes announcing only one prefix: 2894
ARIN Region transit ASes present in the Internet Routing Table: 820
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 194004224
Equivalent to 11 /8s, 144 /16s and 69 /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: 22319
Total RIPE prefixes after maximum aggregation: 16148
Prefixes being announced from the RIPE address blocks: 18719
Unique aggregates announced from the RIPE address blocks: 12372
RIPE Region origin ASes present in the Internet Routing Table: 4713
RIPE Region origin ASes announcing only one prefix: 2567
RIPE Region transit ASes present in the Internet Routing Table: 833
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 133106624
Equivalent to 7 /8s, 239 /16s and 11 /24s
Percentage of available RIPE address space announced: 72.1
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, 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: 5393
Total LACNIC prefixes after maximum aggregation: 2289
Prefixes being announced from the LACNIC address blocks: 4823
Unique aggregates announced from the LACNIC address blocks: 3077
LACNIC Region origin ASes present in the Internet Routing Table: 339
LACNIC Region origin ASes announcing only one prefix: 90
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 12817408
Equivalent to 0 /8s, 195 /16s and 148 /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 1051 1069 742 Telstra Pty Ltd
4755 406 133 59 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 345 24 151 Pakistan Telecom
703 332 370 265 UUNET
2764 306 325 273 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 234 37 22 Satyam Infoway Ltd.,
4134 227 1912 112 Data Communications Bureau
4766 224 2476 167 Korea Internet Exchange for "
9800 188 306 62 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9929 169 170 34 China Netcom Corp.
4538 168 1506 21 China Education and Research
9498 168 11 28 BHARTI BT INTERNET LTD.
4739 141 58 130 Commerical Internet eXchange
9238 138 8 20 TATA ISP
4716 132 745 126 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1529 8816 1075 UUNET Technologies, Inc.
7018 1339 7181 928 AT&T
1239 949 2997 663 Sprint
3908 902 1517 472 Supernet, Inc.
7132 838 6606 232 Southwestern Bell Internet Se
189 684 372 307 Genuity
18566 623 160 8 Covad Communications
4323 610 526 177 Time Warner Communications, I
7843 603 364 261 Adelphia Corp.
1 583 2472 388 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 523 366 219 BellSouth Network Solutions,
209 518 2126 304 Qwest
705 500 242 319 UUNET Technologies, Inc.
7066 489 204 261 Virginia Polytechnic Institut
6198 480 267 182 BellSouth Network Solutions,
20115 459 194 281 Charter Communications
690 449 64 295 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 1018 2154 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 242 801 137 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 230 385 218 COLT Internet - International
1257 224 307 186 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 141 549 138 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 116 BTnet UK Regional network
3246 122 373 118 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 107 796 32 Ibernet, Internet Access Netw
2647 97 4129 40 SITA
5511 96 177 74 France Telecom
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 216 350 116 UniNet S.A. de C.V.
11172 171 66 40 Servicios Alestra S.A de C.V
11340 139 3 47 Red Universitaria Nacional
16814 135 9 17 NSS, S.A.
6503 130 173 94 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
6147 98 70 20 Telefonica Del Peru
11992 88 8 38 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 68 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 623 615 Covad Communications
7132 838 606 Southwestern Bell Internet Se
11305 549 477 Interland Incorporated
4323 610 433 Time Warner Communications, I
3908 902 430 Supernet, Inc.
7018 1339 411 AT&T
702 1018 391 UUNET - Commercial IP service
189 684 377 Genuity
4755 406 347 Videsh Sanchar Nigam Ltd. Aut
7843 603 342 Adelphia Corp.
1221 1051 309 Telstra Pty Ltd
6197 523 304 BellSouth Network Solutions,
6198 480 298 BellSouth Network Solutions,
4355 404 295 EarthLink, Inc.
27364 305 287 Armstrong Cable Services
1239 949 286 Sprint
6347 362 281 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 376 250 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
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 /9:6 /10:8 /11:13 /12:54
/13:97 /14:259 /15:474 /16:7426 /17:1728 /18:3054
/19:8539 /20:8604 /21:6285 /22:9198 /23:10741 /24:69711
/25:175 /26:271 /27:73 /28:39 /29:22 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 714 1018 UUNET - Commercial IP service
18566 617 623 Covad Communications
189 604 684 Genuity
3908 577 902 Supernet, Inc.
7018 476 1339 AT&T
11305 475 549 Interland Incorporated
701 433 1529 UUNET Technologies, Inc.
690 406 449 Merit Network
6197 394 523 BellSouth Network Solutions,
7066 385 489 Virginia Polytechnic Institut
6198 375 480 BellSouth Network Solutions,
7843 360 603 Adelphia Corp.
1239 356 949 Sprint
20115 319 459 Charter Communications
27364 299 305 Armstrong Cable Services
25844 258 258 Skadden, Arps, Slate, Meagher
1 222 583 GENUITY
4355 216 404 EarthLink, Inc.
3320 209 268 Deutsche Telekom AG
705 207 500 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:699 13:1 15:4 16:1 17:3
20:7 24:852 25:1 32:95 38:42 40:21
44:2 57:15 61:261 62:359 63:1870 64:1771
65:1965 66:2557 67:195 68:385 69:190 80:396
81:120 82:6 128:145 129:164 130:49 131:79
132:27 134:175 135:4 136:116 137:107 138:114
139:65 140:141 141:117 142:94 143:44 144:99
145:13 146:280 147:95 148:289 149:62 150:83
151:70 152:233 153:101 154:3 155:119 156:57
157:46 158:129 159:140 160:45 161:74 162:377
163:80 164:318 165:143 166:95 167:322 168:175
169:106 170:323 171:8 192:5330 193:2604 194:1980
195:1090 196:470 198:3588 199:2696 200:2956 202:3899
203:5253 204:2976 205:2033 206:2323 207:2434 208:2589
209:2853 210:869 211:360 212:997 213:872 214:19
215:23 216:3434 217:654 218:94 219:64 220:97
221:8
End of report
