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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 02 Mar, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133981
Prefixes after maximum aggregation: 81856
Unique aggregates announced to Internet: 64576
Total ASes present in the Internet Routing Table: 16727
Origin-only ASes present in the Internet Routing Table: 14512
Origin ASes announcing only one prefix: 6709
Transit ASes present in the Internet Routing Table: 2215
Transit-only ASes present in the Internet Routing Table: 67
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 31
Illegal AS announcements present in the Routing Table: 24
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1290048004
Equivalent to 76 /8s, 228 /16s and 146 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59336
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 25076
Total APNIC prefixes after maximum aggregation: 13261
Prefixes being announced from the APNIC address blocks: 23462
Unique aggregates announced from the APNIC address blocks: 13248
APNIC Region origin ASes present in the Internet Routing Table: 2006
APNIC Region origin ASes announcing only one prefix: 592
APNIC Region transit ASes present in the Internet Routing Table: 321
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 137066400
Equivalent to 8 /8s, 43 /16s and 119 /24s
Percentage of available APNIC address space announced: 73.9
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: 77989
Total ARIN prefixes after maximum aggregation: 48232
Prefixes being announced from the ARIN address blocks: 60341
Unique aggregates announced from the ARIN address blocks: 20924
ARIN Region origin ASes present in the Internet Routing Table: 8978
ARIN Region origin ASes announcing only one prefix: 3190
ARIN Region transit ASes present in the Internet Routing Table: 877
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 218901280
Equivalent to 13 /8s, 12 /16s and 43 /24s
Percentage of available ARIN address space announced: 72.5
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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 24099
Total RIPE prefixes after maximum aggregation: 17485
Prefixes being announced from the RIPE address blocks: 20959
Unique aggregates announced from the RIPE address blocks: 13958
RIPE Region origin ASes present in the Internet Routing Table: 5218
RIPE Region origin ASes announcing only one prefix: 2803
RIPE Region transit ASes present in the Internet Routing Table: 897
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152442496
Equivalent to 9 /8s, 22 /16s and 22 /24s
Percentage of available RIPE address space announced: 69.9
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
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5618
Total LACNIC prefixes after maximum aggregation: 2204
Prefixes being announced from the LACNIC address blocks: 5313
Unique aggregates announced from the LACNIC address blocks: 3268
LACNIC Region origin ASes present in the Internet Routing Table: 369
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14337280
Equivalent to 0 /8s, 218 /16s and 197 /24s
Percentage of available LACNIC address space announced: 42.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1179
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 746
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 89
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1766400
Equivalent to 0 /8s, 26 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 10.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 896 1086 642 Telstra Pty Ltd
4134 669 2491 118 Data Communications Bureau
4766 432 2913 238 Korea Internet Exchange for "
4755 363 130 58 Videsh Sanchar Nigam Ltd. Aut
2907 361 1847 338 SINET Japan
9583 349 42 24 Satyam Infoway Ltd.,
9443 347 70 81 Primus Telecommunications
703 339 374 262 UUNET
17557 332 24 162 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 295 274 238 connect.com.au pty ltd
7474 270 304 210 Optus Communications Pty Ltd
9942 231 70 132 COMindico Australia
9929 228 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 190 30 36 BHARTI BT INTERNET LTD.
4837 165 1571 102 chinanet IDC center beijing n
9304 165 159 24 Hutchison Telecom (HK)
4739 151 60 138 Commerical Internet eXchange
7633 150 23 42 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1403 7218 982 AT&T
701 1341 8611 957 UUNET Technologies, Inc.
1239 937 3081 653 Sprint
3356 838 10954 675 Level 3 Communications, LLC
6197 736 443 271 BellSouth Network Solutions,
209 717 3531 503 Qwest
4323 693 544 204 Time Warner Communications, I
18566 691 192 9 Covad Communications
20115 618 345 341 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
852 513 1123 400 Telus Advanced Communications
7066 497 206 269 Virginia Polytechnic Institut
7843 493 582 121 Adelphia Corp.
7132 467 7834 321 Southwestern Bell Internet Se
2386 432 579 230 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 397 323 103 EarthLink, Inc.
19029 383 168 245 New Edge Networks
27364 382 28 23 Armstrong Cable Services
376 381 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 677 2052 564 UUNET - Commercial IP service
3301 336 1178 315 TeliaNet Sweden
3320 286 1965 234 Deutsche Telekom AG
8220 264 411 252 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 229 506 190 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 190 447 188 Song Networks
786 174 1810 174 The JANET IP Service
8708 172 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 164 185 107 France Telecom Transpac's Tra
3215 163 800 77 France Telecom Transpac
5400 151 223 134 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 128 19 112 Dynamic Network Technologies,
3269 125 1037 65 TELECOM ITALIA
12302 122 18 29 MobiFon S.A.
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 370 121 64 ImpSat
8151 260 384 128 UniNet S.A. de C.V.
11172 206 77 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 138 204 92 AVANTEL, S.A.
7303 136 51 31 Telecom Argentina Stet-France
6505 131 90 91 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
11992 101 25 29 Integrated Systems
11556 88 73 25 Cable-Wireless Panama
6535 78 5 20 Chilesat Servicios Empresari
15311 78 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 69 7 17 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
14420 66 4 20 ANDINATEL S.A.
5639 64 7 13 Telecommunications Services o
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
1916 60 247 40 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 105 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
9129 32 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
8524 19 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
8346 13 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 691 682 Covad Communications
4134 669 551 Data Communications Bureau
4323 693 489 Time Warner Communications, I
6197 736 465 BellSouth Network Solutions,
701 1341 384 UUNET Technologies, Inc.
7843 493 372 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 346 331 Century Telephone
22909 351 328 Comcast Cable Corporation
9583 349 325 Satyam Infoway Ltd.,
22773 347 311 Cox Communications, Inc. Atla
6140 370 306 ImpSat
4755 363 305 Videsh Sanchar Nigam Ltd. Aut
4355 397 294 EarthLink, Inc.
1239 937 284 Sprint
6347 365 284 SAVVIS Communications Corpora
20115 618 277 Charter Communications
376 381 267 Reseau Interordinateurs Scien
9443 347 266 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
23799 UNALLOCATED 202.25.80.0/23 2907 SINET Japan
23799 UNALLOCATED 202.25.82.0/24 2500 WIDE Project
23799 UNALLOCATED 202.25.83.0/24 2907 SINET Japan
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
65412 PRIVATE 211.161.0.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.8.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.32.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.34.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.36.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.38.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.40.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.42.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.44.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.46.0/23 4847 China Networks Inter
65412 PRIVATE 211.161.80.0/21 4847 China Networks Inter
65412 PRIVATE 211.161.88.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.0.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.8.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.16.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.24.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.32.0/21 4847 China Networks Inter
65412 PRIVATE 220.113.40.0/21 4847 China Networks Inter
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 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 /9:4 /10:6 /11:15 /12:59
/13:106 /14:290 /15:508 /16:7587 /17:1905 /18:3485
/19:9002 /20:9380 /21:6847 /22:9670 /23:11228 /24:73157
/25:198 /26:285 /27:163 /28:28 /29:8 /30:16
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 674 691 Covad Communications
6197 577 736 BellSouth Network Solutions,
7018 499 1403 AT&T
3356 452 838 Level 3 Communications, LLC
702 412 677 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 392 497 Virginia Polytechnic Institut
20115 382 618 Charter Communications
27364 375 382 Armstrong Cable Services
701 373 1341 UUNET Technologies, Inc.
690 360 397 Merit Network
1239 333 937 Sprint
5668 305 346 Century Telephone
4766 257 432 Korea Internet Exchange for "
19029 254 383 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 234 286 Deutsche Telekom AG
6517 225 247 Yipes Communications, Inc.
6386 223 248 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:779 13:1 15:4 16:1 17:3
20:6 24:830 32:84 38:51 40:26 44:2
55:1 56:1 57:13 61:382 62:468 63:1824
64:1871 65:1913 66:2340 67:280 68:617 69:423
80:454 81:209 82:89 83:8 128:139 129:258
130:41 131:79 132:16 134:174 135:16 136:183
137:107 138:151 139:44 140:148 141:135 142:106
143:48 144:82 145:37 146:286 147:73 148:366
149:85 150:123 151:62 152:215 153:60 154:1
155:127 156:66 157:50 158:148 159:139 160:51
161:54 162:370 163:74 164:325 165:162 166:99
167:212 168:189 169:106 170:295 171:8 192:5534
193:2589 194:2000 195:1331 196:525 198:3642 199:2953
200:3167 201:7 202:4463 203:5476 204:2998 205:1997
206:2275 207:2597 208:2370 209:2848 210:1116 211:463
212:893 213:1070 214:25 215:26 216:3306 217:849
218:149 219:98 220:172 221:19 222:6
End of report
