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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 25 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142265
Prefixes after maximum aggregation: 85289
Unique aggregates announced to Internet: 68174
Total ASes present in the Internet Routing Table: 17482
Origin-only ASes present in the Internet Routing Table: 15156
Origin ASes announcing only one prefix: 7065
Transit ASes present in the Internet Routing Table: 2326
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 27
Illegal AS announcements present in the Routing Table: 13
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1313741340
Equivalent to 78 /8s, 78 /16s and 26 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65531
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27017
Total APNIC prefixes after maximum aggregation: 14001
Prefixes being announced from the APNIC address blocks: 25243
Unique aggregates announced from the APNIC address blocks: 13907
APNIC Region origin ASes present in the Internet Routing Table: 2069
APNIC Region origin ASes announcing only one prefix: 615
APNIC Region transit ASes present in the Internet Routing Table: 336
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 150400512
Equivalent to 8 /8s, 246 /16s and 238 /24s
Percentage of available APNIC address space announced: 68.6
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: 81918
Total ARIN prefixes after maximum aggregation: 49918
Prefixes being announced from the ARIN address blocks: 63022
Unique aggregates announced from the ARIN address blocks: 21922
ARIN Region origin ASes present in the Internet Routing Table: 9276
ARIN Region origin ASes announcing only one prefix: 3305
ARIN Region transit ASes present in the Internet Routing Table: 907
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225840416
Equivalent to 13 /8s, 118 /16s and 13 /24s
Percentage of available ARIN address space announced: 74.8
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: 26001
Total RIPE prefixes after maximum aggregation: 18445
Prefixes being announced from the RIPE address blocks: 22784
Unique aggregates announced from the RIPE address blocks: 15169
RIPE Region origin ASes present in the Internet Routing Table: 5597
RIPE Region origin ASes announcing only one prefix: 3012
RIPE Region transit ASes present in the Internet Routing Table: 967
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 164931392
Equivalent to 9 /8s, 212 /16s and 167 /24s
Percentage of available RIPE address space announced: 57.8
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: 6173
Total LACNIC prefixes after maximum aggregation: 2250
Prefixes being announced from the LACNIC address blocks: 5803
Unique aggregates announced from the LACNIC address blocks: 3541
LACNIC Region origin ASes present in the Internet Routing Table: 378
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: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15118080
Equivalent to 0 /8s, 230 /16s and 175 /24s
Percentage of available LACNIC address space announced: 45.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1153
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 782
Unique aggregates announced from the AfriNIC address blocks: 584
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1886720
Equivalent to 0 /8s, 28 /16s and 202 /24s
Percentage of available AfriNIC address space announced: 11.2
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 846 1075 614 Telstra Pty Ltd
4134 792 3664 146 Data Communications Bureau
4766 494 2896 264 Korea Internet Exchange for "
9583 460 38 98 Satyam Infoway Ltd.,
4755 371 134 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 337 23 165 Pakistan Telecom
703 327 359 256 UUNET
9929 321 156 33 China Netcom Corp.
2764 294 259 241 connect.com.au pty ltd
7474 263 268 206 Optus Communications Pty Ltd
9942 231 71 128 COMindico Australia
9800 224 369 62 CHINA UNICOM
9498 217 48 47 BHARTI BT INTERNET LTD.
10036 198 18 179 C&M Communication Co. Ltd.
4837 186 2019 105 chinanet IDC center beijing n
17974 184 51 99 PT TELEKOMUNIKASI INDONESIA
9304 174 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1443 6891 998 AT&T
701 1299 8485 927 UUNET Technologies, Inc.
1239 941 2982 636 Sprint
6347 927 400 100 SAVVIS Communications Corpora
3356 899 10935 681 Level 3 Communications, LLC
557 771 63 15 University of Maine System Co
4323 744 555 207 Time Warner Communications, I
18566 724 192 8 Covad Communications
6197 707 525 276 BellSouth Network Solutions,
209 616 3469 508 Qwest
6198 574 439 220 BellSouth Network Solutions,
20115 561 373 287 Charter Communications
852 514 1142 402 Telus Advanced Communications
7843 511 661 128 Adelphia Corp.
7132 455 7872 341 Southwestern Bell Internet Se
2386 426 565 228 AT&T Data Communications Serv
22909 393 825 26 Comcast Cable Corporation
721 392 13171 288 DLA Systems Automation Center
4355 391 323 101 EarthLink, Inc.
705 390 128 266 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2039 540 UUNET - Commercial IP service
3320 298 2468 236 Deutsche Telekom AG
3301 295 1098 268 TeliaNet Sweden
8220 276 429 264 COLT Internet - International
1257 247 497 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 211 477 208 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 186 112 173 Romania Data Systems S.A.
3215 182 895 69 France Telecom Transpac
719 180 288 102 LANLINK autonomous system
786 173 1778 173 The JANET IP Service
25186 166 156 115 France Telecom Transpac's Tra
6746 156 29 127 Dynamic Network Technologies,
5400 147 206 121 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 134 611 133 Swisscom Ltd
8866 127 14 11 Bulgarian Telecommunication C
12302 127 18 31 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 96 58 Servicios Alestra S.A de C.V
6140 343 140 67 ImpSat
8151 270 373 128 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 184 82 21 Telefonica Del Peru
7303 146 53 30 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 131 202 89 AVANTEL, S.A.
11992 88 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
14420 85 5 32 ANDINATEL S.A.
6535 80 5 17 Chilesat Servicios Empresari
14535 76 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
8524 25 2 4 AUCEGYPT Autonomous System
12455 25 4 2 Jambonet Autonomous system
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
14988 24 16 1 Botswana Telecommunications C
5713 23 109 22 Telkom SA Ltd
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
21280 13 2 3 Swift Global Kenya Ltd.Is an
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 927 827 SAVVIS Communications Corpora
557 771 756 University of Maine System Co
18566 724 716 Covad Communications
4134 792 646 Data Communications Bureau
4323 744 537 Time Warner Communications, I
6197 707 431 BellSouth Network Solutions,
7843 511 383 Adelphia Corp.
701 1299 372 UUNET Technologies, Inc.
22909 393 367 Comcast Cable Corporation
5668 384 367 Century Telephone
9583 460 362 Satyam Infoway Ltd.,
27364 376 357 Armstrong Cable Services
6198 574 354 BellSouth Network Solutions,
22773 388 332 Cox Communications, Inc. Atla
4755 371 316 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 941 305 Sprint
11172 356 298 Servicios Alestra S.A de C.V
4355 391 290 EarthLink, Inc.
9929 321 288 China Netcom Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
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
32547 UNALLOCATED 64.74.70.0/24 10910 InterNAP Network Ser
32594 UNALLOCATED 65.214.190.0/24 701 UUNET Technologies,
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
32632 UNALLOCATED 205.237.202.0/23 10607 Global Communication
32632 UNALLOCATED 205.237.204.0/22 10607 Global Communication
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
137.0.0.0/13 721 DLA Systems Automation Center
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 721 DLA Systems Automation Center
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 /14:301 /15:518 /16:7883 /17:2070 /18:3632
/19:9478 /20:9941 /21:7308 /22:10358 /23:11893 /24:77276
/25:373 /26:388 /27:350 /28:173 /29:15 /30:68
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
557 738 771 University of Maine System Co
18566 707 724 Covad Communications
6347 703 927 SAVVIS Communications Corpora
7018 559 1443 AT&T
6197 536 707 BellSouth Network Solutions,
3356 504 899 Level 3 Communications, LLC
6198 404 574 BellSouth Network Solutions,
702 395 647 UUNET - Commercial IP service
1239 374 941 Sprint
701 367 1299 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 384 Century Telephone
4766 313 494 Korea Internet Exchange for "
9583 309 460 Satyam Infoway Ltd.,
20115 296 561 Charter Communications
9929 255 321 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 247 298 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:826 13:1 15:5 16:2 17:3
20:8 24:751 32:65 33:1 38:71 40:53
44:4 55:1 56:3 57:15 61:451 62:504
63:1865 64:2029 65:2041 66:2597 67:327 68:500
69:585 70:64 80:532 81:323 82:180 83:92
84:3 128:149 129:176 130:77 131:187 132:21
133:1 134:182 135:17 136:180 137:54 138:167
139:37 140:215 141:124 142:119 143:49 144:100
145:41 146:308 147:77 148:418 149:118 150:96
151:72 152:165 153:64 154:1 155:118 156:60
157:60 158:145 159:147 160:52 161:63 162:383
163:77 164:180 165:159 166:100 167:217 168:228
169:161 170:286 171:8 192:5561 193:2777 194:2050
195:1376 196:555 198:3692 199:3108 200:3553 201:8
202:4682 203:5631 204:3116 205:2074 206:2307 207:2533
208:2216 209:2981 210:1426 211:556 212:986 213:1174
214:66 215:30 216:3730 217:944 218:166 219:112
220:232 221:30 222:40
End of report
