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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 21 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 148994
Prefixes after maximum aggregation: 88130
Unique aggregates announced to Internet: 69296
Total ASes present in the Internet Routing Table: 18272
Origin-only ASes present in the Internet Routing Table: 15863
Origin ASes announcing only one prefix: 7435
Transit ASes present in the Internet Routing Table: 2409
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 28
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1348556652
Equivalent to 80 /8s, 97 /16s and 87 /24s
Percentage of available address space announced: 36.4
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68624
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28945
Total APNIC prefixes after maximum aggregation: 14321
Prefixes being announced from the APNIC address blocks: 27098
Unique aggregates announced from the APNIC address blocks: 14287
APNIC Region origin ASes present in the Internet Routing Table: 2154
APNIC Region origin ASes announcing only one prefix: 646
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 165114496
Equivalent to 9 /8s, 215 /16s and 114 /24s
Percentage of available APNIC address space announced: 75.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84546
Total ARIN prefixes after maximum aggregation: 51461
Prefixes being announced from the ARIN address blocks: 64668
Unique aggregates announced from the ARIN address blocks: 21099
ARIN Region origin ASes present in the Internet Routing Table: 9632
ARIN Region origin ASes announcing only one prefix: 3469
ARIN Region transit ASes present in the Internet Routing Table: 937
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237270784
Equivalent to 14 /8s, 36 /16s and 119 /24s
Percentage of available ARIN address space announced: 70.7
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, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27764
Total RIPE prefixes after maximum aggregation: 19302
Prefixes being announced from the RIPE address blocks: 24588
Unique aggregates announced from the RIPE address blocks: 16121
RIPE Region origin ASes present in the Internet Routing Table: 5925
RIPE Region origin ASes announcing only one prefix: 3189
RIPE Region transit ASes present in the Internet Routing Table: 1019
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 174131072
Equivalent to 10 /8s, 97 /16s and 7 /24s
Percentage of available RIPE address space announced: 61.1
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
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6470
Total LACNIC prefixes after maximum aggregation: 2353
Prefixes being announced from the LACNIC address blocks: 6332
Unique aggregates announced from the LACNIC address blocks: 3776
LACNIC Region origin ASes present in the Internet Routing Table: 395
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16213504
Equivalent to 0 /8s, 247 /16s and 102 /24s
Percentage of available LACNIC address space announced: 48.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1265
Total AfriNIC prefixes after maximum aggregation: 693
Prefixes being announced from the AfriNIC address blocks: 895
Unique aggregates announced from the AfriNIC address blocks: 685
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 19
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2070528
Equivalent to 0 /8s, 31 /16s and 152 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 855 4407 163 Data Communications Bureau
1221 806 1184 579 Telstra Pty Ltd
4766 547 3407 266 Korea Internet Exchange for "
9583 535 41 104 Satyam Infoway Ltd.,
4755 374 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 346 161 33 China Netcom Corp.
17557 317 23 158 Pakistan Telecom
703 313 342 242 UUNET
2764 284 272 232 connect.com.au pty ltd
7474 262 268 197 Optus Communications Pty Ltd
9942 235 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 229 50 49 BHARTI BT INTERNET LTD.
9800 223 372 66 CHINA UNICOM
7563 215 48 162 Korea Internet Infrastructure
4814 206 232 6 China Telecom (Group)
10036 204 19 185 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1422 6743 987 AT&T WorldNet Services
701 1246 8432 894 UUNET Technologies, Inc.
1239 936 2867 623 Sprint
2386 845 532 608 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 792 638 216 Time Warner Telecom
18566 746 208 6 Covad Communications
721 721 21036 298 DLA Systems Automation Center
3356 645 10956 446 Level 3 Communications, LLC
209 637 3471 502 Qwest
20115 601 427 303 Charter Communications
3561 559 2433 423 Cable & Wireless USA
852 511 1142 397 Telus Advanced Communications
7843 495 701 99 Adelphia Corp.
7132 447 8287 375 SBC Internet Services
6198 440 504 188 BellSouth Network Solutions,
705 433 163 274 UUNET Technologies, Inc.
6478 415 728 93 AT&T Worldnet Services
27364 411 36 19 Armstrong Cable Services
22909 405 866 26 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2013 522 UUNET - Commercial IP service
3320 302 2486 239 Deutsche Telekom AG
3301 281 1100 271 TeliaNet Sweden
8220 281 461 267 COLT Internet - International
21502 260 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 195 842 143 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 129 Dynamic Network Technologies,
719 157 288 102 LANLINK autonomous system
3215 157 940 78 France Telecom Transpac
8866 155 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 208 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 347 138 67 ImpSat
8151 306 440 131 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 206 100 54 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 166 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 122 163 83 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 97 6 8 Telefonica del Sur S.A.
11311 86 8 25 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
10481 80 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
14522 79 5 9 SatNet S.A.
4270 78 18 9 Red de Interconexion Universi
15311 76 21 36 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 57 16 1 Noor Advanced Technologies AS
22750 50 3 2 BCS-Net (PTY) Ltd
24835 34 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 4 UTL On-line is RF broadband I
21280 14 2 3 Swift Global Kenya Ltd.Is an
14988 13 16 1 Botswana Telecommunications C
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 855 692 Data Communications Bureau
4323 792 576 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 535 431 Satyam Infoway Ltd.,
721 721 423 DLA Systems Automation Center
7843 495 396 Adelphia Corp.
27364 411 392 Armstrong Cable Services
5668 403 385 Century Telephone
22909 405 379 Comcast Cable Corporation
22773 393 375 Cox Communications, Inc. Atla
6467 399 368 E.Spire Communications, Inc.
701 1246 352 UUNET Technologies, Inc.
6478 415 322 AT&T Worldnet Services
4755 374 321 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 936 313 Sprint
9929 346 313 China Netcom Corp.
20115 601 298 Charter Communications
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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 WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:3 /10:6 /11:15 /12:61
/13:137 /14:311 /15:554 /16:8108 /17:2262 /18:3891
/19:9718 /20:10375 /21:7894 /22:10931 /23:12646 /24:81244
/25:237 /26:210 /27:113 /28:61 /29:50 /30:111
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 660 811 BellSouth Network Solutions,
2386 611 845 AT&T Data Communications Serv
7018 573 1422 AT&T WorldNet Services
27364 395 411 Armstrong Cable Services
702 383 631 UUNET - Commercial IP service
1239 375 936 Sprint
9583 373 535 Satyam Infoway Ltd.,
4766 367 547 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 342 1246 UUNET Technologies, Inc.
6198 315 440 BellSouth Network Solutions,
20115 311 601 Charter Communications
6467 296 399 E.Spire Communications, Inc.
6517 278 302 Yipes Communications, Inc.
9929 277 346 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 257 260 NUMERICABLE is a cabled netwo
4323 250 792 Time Warner Telecom
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1424 13:1 15:5 16:2
17:3 18:1 20:6 24:745 32:68 33:2
38:80 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:4 61:597 62:496 63:1841
64:2419 65:2074 66:2475 67:433 68:562 69:740
70:94 80:521 81:547 82:311 83:189 84:43
128:132 129:165 130:83 131:183 132:34 134:189
135:19 136:187 137:55 138:183 139:38 140:182
141:107 142:122 143:69 144:159 145:42 146:292
147:94 148:327 149:111 150:94 151:65 152:148
153:68 154:2 155:127 156:58 157:66 158:131
159:163 160:63 161:73 162:375 163:79 164:214
165:158 166:120 167:222 168:356 169:120 170:285
171:9 192:5586 193:2902 194:2151 195:1499 196:652
198:3644 199:3315 200:3812 201:21 202:4906 203:5741
204:3455 205:2089 206:2274 207:2569 208:2127 209:2986
210:1500 211:636 212:1120 213:1187 214:129 215:30
216:3653 217:1047 218:182 219:104 220:267 221:65
222:43
End of report
