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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 25 Aug, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127813
Prefixes after maximum aggregation: 79989
Unique aggregates announced to Internet: 61273
Total ASes present in the Internet Routing Table: 15718
Origin-only ASes present in the Internet Routing Table: 13626
Origin ASes announcing only one prefix: 6205
Transit ASes present in the Internet Routing Table: 2092
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 26
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: 15
Number of addresses announced to Internet: 1239623008
Equivalent to 73 /8s, 227 /16s and 37 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56829
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22267
Total APNIC prefixes after maximum aggregation: 12673
Prefixes being announced from the APNIC address blocks: 20689
Unique aggregates announced from the APNIC address blocks: 12371
APNIC Region origin ASes present in the Internet Routing Table: 1884
APNIC Region origin ASes announcing only one prefix: 545
APNIC Region transit ASes present in the Internet Routing Table: 313
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 120831104
Equivalent to 7 /8s, 51 /16s and 188 /24s
Percentage of available APNIC address space announced: 65.1
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: 77882
Total ARIN prefixes after maximum aggregation: 48623
Prefixes being announced from the ARIN address blocks: 55531
Unique aggregates announced from the ARIN address blocks: 17221
ARIN Region origin ASes present in the Internet Routing Table: 8614
ARIN Region origin ASes announcing only one prefix: 2952
ARIN Region transit ASes present in the Internet Routing Table: 829
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 195992064
Equivalent to 11 /8s, 174 /16s and 154 /24s
Percentage of available ARIN address space announced: 73.0
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: 22315
Total RIPE prefixes after maximum aggregation: 16404
Prefixes being announced from the RIPE address blocks: 18920
Unique aggregates announced from the RIPE address blocks: 12713
RIPE Region origin ASes present in the Internet Routing Table: 4805
RIPE Region origin ASes announcing only one prefix: 2610
RIPE Region transit ASes present in the Internet Routing Table: 851
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 134865216
Equivalent to 8 /8s, 9 /16s and 225 /24s
Percentage of available RIPE address space announced: 73.1
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: 5347
Total LACNIC prefixes after maximum aggregation: 2289
Prefixes being announced from the LACNIC address blocks: 4798
Unique aggregates announced from the LACNIC address blocks: 3135
LACNIC Region origin ASes present in the Internet Routing Table: 346
LACNIC Region origin ASes announcing only one prefix: 98
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13042688
Equivalent to 0 /8s, 199 /16s and 4 /24s
Percentage of available LACNIC address space announced: 38.9
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 1038 1037 728 Telstra Pty Ltd
4755 402 135 73 Videsh Sanchar Nigam Ltd. Aut
2907 374 1911 349 SINET Japan
703 341 372 273 UUNET
4134 331 2210 114 Data Communications Bureau
17557 308 26 138 Pakistan Telecom
2764 301 323 269 connect.com.au pty ltd
7474 264 307 204 Optus Communications Pty Ltd
17676 253 3894 22 XTAGE CORPORATION
9583 242 37 21 Satyam Infoway Ltd.,
3786 239 777 205 DACOM Corporation
4766 239 2461 171 Korea Internet Exchange for "
9800 198 326 56 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 172 15 27 BHARTI BT INTERNET LTD.
4538 170 1538 21 China Education and Research
9929 169 153 33 China Netcom Corp.
17642 158 41 119 RequestDSL BGP AS# for Sydney
9942 153 69 105 COMindico Australia
4739 139 58 128 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1490 8787 1047 UUNET Technologies, Inc.
7018 1373 7156 974 AT&T
3908 920 1589 495 Supernet, Inc.
1239 895 3032 636 Sprint
189 672 451 331 Genuity
18566 665 160 8 Covad Communications
4323 624 551 179 Time Warner Communications, I
6197 569 387 244 BellSouth Network Solutions,
7843 552 410 189 Adelphia Corp.
209 521 2145 299 Qwest
852 521 1124 413 Telus Advanced Communications
6198 514 277 197 BellSouth Network Solutions,
7066 490 205 262 Virginia Polytechnic Institut
705 482 192 301 UUNET Technologies, Inc.
20115 476 198 287 Charter Communications
3356 475 10659 396 Level 3 Communications, LLC
1 474 1077 307 GENUITY
7132 410 6608 240 Southwestern Bell Internet Se
690 408 59 275 Merit Network
4355 404 339 109 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 735 2141 611 UUNET - Commercial IP service
3301 289 1168 277 TeliaNet Sweden
3320 264 1987 224 Deutsche Telekom AG
1257 242 312 191 SWIPnet Swedish IP Network
8220 242 431 231 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
3215 214 752 121 France Telecom Transpac
719 196 307 125 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 175 175 127 BT Ignite European Backbone
8708 159 111 155 Romania Data Systems S.A.
3303 140 540 137 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 121 360 119 Song Networks
3269 117 821 64 TELECOM ITALIA
2856 112 1295 103 BTnet UK Regional network
3352 111 812 33 Ibernet, Internet Access Netw
2647 101 4129 45 SITA
6746 88 12 75 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 317 103 114 ImpSat
7303 236 39 55 Telecom Argentina Stet-France
8151 222 350 117 UniNet S.A. de C.V.
11172 178 77 43 Servicios Alestra S.A de C.V
16814 152 10 18 NSS, S.A.
6503 132 189 94 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 107 3 38 Red Universitaria Nacional
11992 87 8 37 Integrated Systems
6147 84 70 21 Telefonica Del Peru
8065 80 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 74 6 29 Instituto Costarricense de El
1916 73 306 43 Fundacao de Amparo a Pesquisa
4270 68 18 9 Red de Interconexion Universi
7927 65 6 39 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 59 12 40 Global One Colombia
13999 56 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 665 657 Covad Communications
4323 624 445 Time Warner Communications, I
3908 920 425 Supernet, Inc.
7018 1373 399 AT&T
7843 552 363 Adelphia Corp.
189 672 341 Genuity
4755 402 329 Videsh Sanchar Nigam Ltd. Aut
6197 569 325 BellSouth Network Solutions,
11305 358 320 Interland Incorporated
6198 514 317 BellSouth Network Solutions,
1221 1038 310 Telstra Pty Ltd
4355 404 295 EarthLink, Inc.
27364 317 294 Armstrong Cable Services
6347 359 280 SAVVIS Communications Corpora
22909 286 269 Comcast Cable Corporation
1239 895 259 Sprint
25844 257 255 Skadden, Arps, Slate, Meagher
376 358 243 Reseau Interordinateurs Scien
17676 253 231 XTAGE CORPORATION
7066 490 228 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 61.95.250.0/24 9498 BHARTI BT INTERNET L
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
192.228.80.0/24 30122 INTERNET SOFTWARE CONSORTIUM,
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:4 /10:6 /11:12 /12:55
/13:98 /14:262 /15:473 /16:7412 /17:1738 /18:3080
/19:8423 /20:8715 /21:6367 /22:9430 /23:10894 /24:70175
/25:165 /26:221 /27:151 /28:26 /29:12 /30:48
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 659 665 Covad Communications
189 587 672 Genuity
3908 580 920 Supernet, Inc.
7018 477 1373 AT&T
702 448 735 UUNET - Commercial IP service
701 443 1490 UUNET Technologies, Inc.
6197 434 569 BellSouth Network Solutions,
6198 406 514 BellSouth Network Solutions,
7066 386 490 Virginia Polytechnic Institut
690 368 408 Merit Network
20115 324 476 Charter Communications
27364 311 317 Armstrong Cable Services
1239 300 895 Sprint
10753 298 312 XCOM Technologies, INC.
11305 281 358 Interland Incorporated
7843 276 552 Adelphia Corp.
25844 257 257 Skadden, Arps, Slate, Meagher
4355 217 404 EarthLink, Inc.
209 211 521 Qwest
705 207 482 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:702 13:1 15:4 16:1 17:3
20:6 24:848 25:1 32:85 38:45 40:23
44:2 55:1 57:14 61:284 62:394 63:1850
64:1761 65:2003 66:2685 67:246 68:395 69:251
80:403 81:127 82:10 128:160 129:171 130:61
131:82 132:13 134:166 135:7 136:188 137:113
138:121 139:45 140:142 141:118 142:100 143:45
144:89 145:13 146:275 147:61 148:302 149:72
150:120 151:68 152:218 153:57 154:4 155:122
156:69 157:48 158:119 159:135 160:45 161:75
162:408 163:76 164:314 165:141 166:96 167:313
168:182 169:95 170:322 171:9 192:5405 193:2466
194:1973 195:1184 196:468 198:3603 199:2758 200:2955
202:3940 203:5239 204:2985 205:2050 206:2341 207:2494
208:2544 209:2866 210:895 211:299 212:976 213:919
214:16 215:22 216:3278 217:690 218:98 219:72
220:102 221:10
End of report
