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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 22 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128299
Prefixes after maximum aggregation: 80130
Unique aggregates announced to Internet: 61749
Total ASes present in the Internet Routing Table: 15838
Origin-only ASes present in the Internet Routing Table: 13739
Origin ASes announcing only one prefix: 6252
Transit ASes present in the Internet Routing Table: 2099
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1226384932
Equivalent to 73 /8s, 25 /16s and 38 /24s
Percentage of available address space announced: 33.1
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57119
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22548
Total APNIC prefixes after maximum aggregation: 12727
Prefixes being announced from the APNIC address blocks: 20943
Unique aggregates announced from the APNIC address blocks: 12359
APNIC Region origin ASes present in the Internet Routing Table: 1898
APNIC Region origin ASes announcing only one prefix: 547
APNIC Region transit ASes present in the Internet Routing Table: 309
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 122100992
Equivalent to 7 /8s, 71 /16s and 29 /24s
Percentage of available APNIC address space announced: 65.8
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: 77705
Total ARIN prefixes after maximum aggregation: 48615
Prefixes being announced from the ARIN address blocks: 55332
Unique aggregates announced from the ARIN address blocks: 17504
ARIN Region origin ASes present in the Internet Routing Table: 8667
ARIN Region origin ASes announcing only one prefix: 2991
ARIN Region transit ASes present in the Internet Routing Table: 834
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197212960
Equivalent to 11 /8s, 193 /16s and 59 /24s
Percentage of available ARIN address space announced: 73.5
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: 22627
Total RIPE prefixes after maximum aggregation: 16502
Prefixes being announced from the RIPE address blocks: 19149
Unique aggregates announced from the RIPE address blocks: 12824
RIPE Region origin ASes present in the Internet Routing Table: 4857
RIPE Region origin ASes announcing only one prefix: 2615
RIPE Region transit ASes present in the Internet Routing Table: 854
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136446784
Equivalent to 8 /8s, 34 /16s and 3 /24s
Percentage of available RIPE address space announced: 73.9
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: 5417
Total LACNIC prefixes after maximum aggregation: 2286
Prefixes being announced from the LACNIC address blocks: 4860
Unique aggregates announced from the LACNIC address blocks: 3174
LACNIC Region origin ASes present in the Internet Routing Table: 345
LACNIC Region origin ASes announcing only one prefix: 99
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13294592
Equivalent to 0 /8s, 202 /16s and 220 /24s
Percentage of available LACNIC address space announced: 39.6
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 973 1109 691 Telstra Pty Ltd
4755 408 135 74 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
4134 340 2228 108 Data Communications Bureau
703 335 371 264 UUNET
17557 291 21 136 Pakistan Telecom
2764 290 322 258 connect.com.au pty ltd
7474 269 306 209 Optus Communications Pty Ltd
17676 264 3980 26 XTAGE CORPORATION
9583 250 38 25 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9498 186 20 16 BHARTI BT INTERNET LTD.
9443 185 58 82 Primus Telecommunications
9929 179 160 36 China Netcom Corp.
9942 176 69 106 COMindico Australia
4538 172 1554 21 China Education and Research
17642 155 40 116 RequestDSL BGP AS# for Sydney
4837 140 1058 88 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1463 8720 1019 UUNET Technologies, Inc.
7018 1396 7139 972 AT&T
3908 919 1574 492 Supernet, Inc.
1239 905 3035 651 Sprint
18566 688 176 8 Covad Communications
4323 663 571 189 Time Warner Communications, I
189 620 432 356 Genuity
6197 613 397 269 BellSouth Network Solutions,
3741 565 648 222 The Internet Solution
3356 528 10677 445 Level 3 Communications, LLC
7843 522 448 134 Adelphia Corp.
852 517 1123 410 Telus Advanced Communications
209 502 2127 286 Qwest
6198 493 329 192 BellSouth Network Solutions,
20115 470 202 293 Charter Communications
7066 463 205 262 Virginia Polytechnic Institut
1 435 1017 271 GENUITY
10753 422 87 207 XCOM Technologies, INC.
705 419 185 256 UUNET Technologies, Inc.
690 411 59 276 Merit Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 712 2121 591 UUNET - Commercial IP service
3301 295 1168 282 TeliaNet Sweden
3320 270 1989 230 Deutsche Telekom AG
8220 256 434 245 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 374 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
3215 184 721 106 France Telecom Transpac
5400 183 174 134 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 155 110 152 Romania Data Systems S.A.
3303 142 540 137 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 125 376 123 Song Networks
3269 119 853 65 TELECOM ITALIA
20858 114 17 3 This AS will be used to conne
2856 112 1293 103 BTnet UK Regional network
25186 104 144 71 France Telecom Transpac's Tra
3352 98 824 34 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 340 103 105 ImpSat
8151 231 350 120 UniNet S.A. de C.V.
7303 229 40 62 Telecom Argentina Stet-France
11172 188 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 128 205 91 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 104 3 36 Red Universitaria Nacional
11992 87 8 37 Integrated Systems
6147 82 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 72 21 27 Instituto Costarricense de El
4270 67 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 61 270 41 Fundacao de Amparo a Pesquisa
7984 59 12 40 Global One Colombia
4926 57 4 48 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 688 680 Covad Communications
4323 663 474 Time Warner Communications, I
3908 919 427 Supernet, Inc.
7018 1396 424 AT&T
7843 522 388 Adelphia Corp.
6197 613 344 BellSouth Network Solutions,
3741 565 343 The Internet Solution
4755 408 334 Videsh Sanchar Nigam Ltd. Aut
6198 493 301 BellSouth Network Solutions,
27364 319 296 Armstrong Cable Services
4355 394 284 EarthLink, Inc.
1221 973 282 Telstra Pty Ltd
22909 293 275 Comcast Cable Corporation
6347 353 272 SAVVIS Communications Corpora
189 620 264 Genuity
1239 905 254 Sprint
376 362 247 Reseau Interordinateurs Scien
22773 269 241 Cox Communications, Inc. Atla
25844 242 240 Skadden, Arps, Slate, Meagher
17676 264 238 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
23780 UNALLOCATED 211.15.112.0/20 2516 Kokusai Denshin Denw
23780 UNALLOCATED 211.19.224.0/19 2516 Kokusai Denshin Denw
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:4 /10:6 /11:12 /12:55
/13:97 /14:265 /15:471 /16:7435 /17:1756 /18:3134
/19:8461 /20:8803 /21:6427 /22:9449 /23:10933 /24:70211
/25:200 /26:245 /27:208 /28:27 /29:9 /30:51
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 682 688 Covad Communications
3908 580 919 Supernet, Inc.
189 536 620 Genuity
7018 502 1396 AT&T
6197 478 613 BellSouth Network Solutions,
701 439 1463 UUNET Technologies, Inc.
702 428 712 UUNET - Commercial IP service
10753 390 422 XCOM Technologies, INC.
6198 379 493 BellSouth Network Solutions,
690 371 411 Merit Network
7066 359 463 Virginia Polytechnic Institut
20115 316 470 Charter Communications
1239 314 905 Sprint
27364 313 319 Armstrong Cable Services
3356 259 528 Level 3 Communications, LLC
25844 242 242 Skadden, Arps, Slate, Meagher
7843 215 522 Adelphia Corp.
4355 213 394 EarthLink, Inc.
3320 209 270 Deutsche Telekom AG
3741 204 565 The Internet Solution
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:711 13:1 15:4 16:1 17:3
20:6 24:832 25:1 32:84 38:47 40:23
44:2 55:1 57:14 61:310 62:523 63:1872
64:1777 65:1962 66:2672 67:287 68:360 69:245
80:414 81:128 82:14 128:141 129:168 130:62
131:84 132:16 134:169 135:9 136:158 137:115
138:125 139:49 140:162 141:138 142:101 143:44
144:88 145:13 146:280 147:61 148:301 149:80
150:121 151:68 152:221 153:58 154:5 155:129
156:58 157:53 158:134 159:139 160:48 161:69
162:358 163:91 164:288 165:162 166:96 167:305
168:180 169:95 170:326 171:9 192:5312 193:2461
194:1977 195:1147 196:578 198:3579 199:2734 200:2981
202:3959 203:5285 204:2984 205:2033 206:2317 207:2496
208:2574 209:2697 210:907 211:362 212:956 213:928
214:16 215:22 216:3248 217:717 218:106 219:35
220:115 221:11 222:1
End of report
