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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 17 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 140567
Prefixes after maximum aggregation: 85079
Unique aggregates announced to Internet: 68143
Total ASes present in the Internet Routing Table: 17434
Origin-only ASes present in the Internet Routing Table: 15128
Origin ASes announcing only one prefix: 7046
Transit ASes present in the Internet Routing Table: 2306
Transit-only ASes present in the Internet Routing Table: 73
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: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1312302588
Equivalent to 78 /8s, 56 /16s and 37 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 64157
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26851
Total APNIC prefixes after maximum aggregation: 13919
Prefixes being announced from the APNIC address blocks: 25084
Unique aggregates announced from the APNIC address blocks: 13985
APNIC Region origin ASes present in the Internet Routing Table: 2066
APNIC Region origin ASes announcing only one prefix: 617
APNIC Region transit ASes present in the Internet Routing Table: 337
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 150059264
Equivalent to 8 /8s, 241 /16s and 185 /24s
Percentage of available APNIC address space announced: 68.5
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: 80571
Total ARIN prefixes after maximum aggregation: 49851
Prefixes being announced from the ARIN address blocks: 62471
Unique aggregates announced from the ARIN address blocks: 21960
ARIN Region origin ASes present in the Internet Routing Table: 9249
ARIN Region origin ASes announcing only one prefix: 3291
ARIN Region transit ASes present in the Internet Routing Table: 902
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225216288
Equivalent to 13 /8s, 108 /16s and 135 /24s
Percentage of available ARIN address space announced: 74.6
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, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 25866
Total RIPE prefixes after maximum aggregation: 18373
Prefixes being announced from the RIPE address blocks: 22636
Unique aggregates announced from the RIPE address blocks: 15074
RIPE Region origin ASes present in the Internet Routing Table: 5575
RIPE Region origin ASes announcing only one prefix: 3006
RIPE Region transit ASes present in the Internet Routing Table: 956
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 164548352
Equivalent to 9 /8s, 206 /16s and 207 /24s
Percentage of available RIPE address space announced: 57.7
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6152
Total LACNIC prefixes after maximum aggregation: 2261
Prefixes being announced from the LACNIC address blocks: 5783
Unique aggregates announced from the LACNIC address blocks: 3546
LACNIC Region origin ASes present in the Internet Routing Table: 381
LACNIC Region origin ASes announcing only one prefix: 110
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15067136
Equivalent to 0 /8s, 229 /16s and 232 /24s
Percentage of available LACNIC address space announced: 44.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1124
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 777
Unique aggregates announced from the AfriNIC address blocks: 583
AfriNIC Region origin ASes present in the Internet Routing Table: 90
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: 5.1
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1868800
Equivalent to 0 /8s, 28 /16s and 132 /24s
Percentage of available AfriNIC address space announced: 11.1
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 844 1075 612 Telstra Pty Ltd
4134 790 3662 145 Data Communications Bureau
4766 491 2896 264 Korea Internet Exchange for "
9583 456 37 118 Satyam Infoway Ltd.,
4755 370 134 55 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 350 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 334 23 166 Pakistan Telecom
703 329 375 256 UUNET
9929 321 156 33 China Netcom Corp.
2764 294 274 241 connect.com.au pty ltd
7474 263 267 206 Optus Communications Pty Ltd
9942 229 71 126 COMindico Australia
9800 223 367 61 CHINA UNICOM
9498 216 47 46 BHARTI BT INTERNET LTD.
4837 185 2019 105 chinanet IDC center beijing n
17974 183 51 98 PT TELEKOMUNIKASI INDONESIA
10036 181 17 169 C&M Communication Co. Ltd.
9304 179 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1459 6908 1008 AT&T
701 1307 8485 932 UUNET Technologies, Inc.
1239 946 2998 640 Sprint
6347 937 400 99 SAVVIS Communications Corpora
3356 889 10916 674 Level 3 Communications, LLC
4323 740 549 205 Time Warner Communications, I
18566 711 192 8 Covad Communications
6197 705 499 287 BellSouth Network Solutions,
209 614 3452 503 Qwest
6198 572 439 219 BellSouth Network Solutions,
20115 559 371 289 Charter Communications
852 513 1142 404 Telus Advanced Communications
7843 508 655 129 Adelphia Corp.
7132 452 7868 338 Southwestern Bell Internet Se
2386 426 565 228 AT&T Data Communications Serv
705 394 144 268 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
22773 386 779 54 Cox Communications, Inc. Atla
376 385 359 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 646 2039 539 UUNET - Commercial IP service
3320 298 2468 236 Deutsche Telekom AG
3301 289 1097 266 TeliaNet Sweden
8220 275 429 263 COLT Internet - International
1257 251 498 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 211 492 208 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 184 112 172 Romania Data Systems S.A.
3215 182 895 69 France Telecom Transpac
719 179 288 102 LANLINK autonomous system
25186 175 156 116 France Telecom Transpac's Tra
786 173 1778 173 The JANET IP Service
6746 159 29 126 Dynamic Network Technologies,
5400 144 206 119 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 125 18 31 MobiFon S.A.
8866 120 14 8 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 96 57 Servicios Alestra S.A de C.V
6140 346 140 67 ImpSat
8151 275 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 161 82 21 Telefonica Del Peru
7303 144 53 32 Telecom Argentina Stet-France
6505 135 90 93 Global One Communicaoes Ltda
6503 129 202 87 AVANTEL, S.A.
11992 93 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 80 5 17 Chilesat Servicios Empresari
14420 78 5 28 ANDINATEL S.A.
14535 75 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 38 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
21280 12 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 937 838 SAVVIS Communications Corpora
18566 711 703 Covad Communications
4134 790 645 Data Communications Bureau
4323 740 535 Time Warner Communications, I
6197 705 418 BellSouth Network Solutions,
7843 508 379 Adelphia Corp.
701 1307 375 UUNET Technologies, Inc.
5668 383 366 Century Telephone
22909 390 365 Comcast Cable Corporation
27364 376 357 Armstrong Cable Services
6198 572 353 BellSouth Network Solutions,
9583 456 338 Satyam Infoway Ltd.,
22773 386 332 Cox Communications, Inc. Atla
4755 370 315 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 946 306 Sprint
11172 356 299 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 321 288 China Netcom Corp.
6140 346 279 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
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
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
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 /8:19 /9:3 /10:6 /11:15 /12:59
/13:124 /14:299 /15:517 /16:7863 /17:2060 /18:3618
/19:9433 /20:9910 /21:7276 /22:10320 /23:11768 /24:76529
/25:226 /26:250 /27:143 /28:31 /29:15 /30:69
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 714 937 SAVVIS Communications Corpora
18566 694 711 Covad Communications
7018 572 1459 AT&T
6197 536 705 BellSouth Network Solutions,
3356 502 889 Level 3 Communications, LLC
6198 402 572 BellSouth Network Solutions,
702 398 646 UUNET - Commercial IP service
1239 378 946 Sprint
701 374 1307 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 383 Century Telephone
4766 312 491 Korea Internet Exchange for "
9583 304 456 Satyam Infoway Ltd.,
20115 296 559 Charter Communications
14824 258 282 NewSouth Communications Corp.
9929 255 321 China Netcom Corp.
3320 247 298 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
13609 237 278 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:819 13:1 15:5 16:2 17:3
20:8 24:751 32:65 33:1 38:70 40:53
44:4 55:1 56:3 57:15 61:422 62:502
63:1812 64:1967 65:2016 66:2610 67:329 68:498
69:562 70:64 80:496 81:315 82:179 83:76
84:3 128:147 129:186 130:77 131:177 132:21
133:1 134:182 135:17 136:182 137:54 138:145
139:36 140:164 141:125 142:116 143:53 144:90
145:41 146:302 147:78 148:418 149:118 150:94
151:71 152:165 153:64 154:1 155:117 156:61
157:60 158:145 159:148 160:52 161:62 162:379
163:77 164:194 165:158 166:93 167:215 168:228
169:107 170:285 171:8 192:5544 193:2767 194:2036
195:1368 196:553 198:3688 199:3080 200:3533 201:8
202:4654 203:5600 204:3097 205:2081 206:2290 207:2487
208:2218 209:2931 210:1416 211:556 212:985 213:1176
214:62 215:30 216:3694 217:931 218:166 219:110
220:231 221:30 222:38
End of report
