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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 24 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143939
Prefixes after maximum aggregation: 85868
Unique aggregates announced to Internet: 69464
Total ASes present in the Internet Routing Table: 17842
Origin-only ASes present in the Internet Routing Table: 15468
Origin ASes announcing only one prefix: 7273
Transit ASes present in the Internet Routing Table: 2374
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1330662056
Equivalent to 79 /8s, 80 /16s and 74 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65188
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27852
Total APNIC prefixes after maximum aggregation: 14059
Prefixes being announced from the APNIC address blocks: 26075
Unique aggregates announced from the APNIC address blocks: 14135
APNIC Region origin ASes present in the Internet Routing Table: 2112
APNIC Region origin ASes announcing only one prefix: 620
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 157710720
Equivalent to 9 /8s, 102 /16s and 121 /24s
Percentage of available APNIC address space announced: 72.0
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: 81981
Total ARIN prefixes after maximum aggregation: 50055
Prefixes being announced from the ARIN address blocks: 63520
Unique aggregates announced from the ARIN address blocks: 22395
ARIN Region origin ASes present in the Internet Routing Table: 9427
ARIN Region origin ASes announcing only one prefix: 3402
ARIN Region transit ASes present in the Internet Routing Table: 925
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 230279456
Equivalent to 13 /8s, 185 /16s and 201 /24s
Percentage of available ARIN address space announced: 68.6
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, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26585
Total RIPE prefixes after maximum aggregation: 18819
Prefixes being announced from the RIPE address blocks: 23372
Unique aggregates announced from the RIPE address blocks: 15620
RIPE Region origin ASes present in the Internet Routing Table: 5750
RIPE Region origin ASes announcing only one prefix: 3115
RIPE Region transit ASes present in the Internet Routing Table: 999
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 169623872
Equivalent to 10 /8s, 28 /16s and 65 /24s
Percentage of available RIPE address space announced: 59.5
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: 6292
Total LACNIC prefixes after maximum aggregation: 2253
Prefixes being announced from the LACNIC address blocks: 6072
Unique aggregates announced from the LACNIC address blocks: 3541
LACNIC Region origin ASes present in the Internet Routing Table: 388
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15759104
Equivalent to 0 /8s, 240 /16s and 119 /24s
Percentage of available LACNIC address space announced: 47.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1214
Total AfriNIC prefixes after maximum aggregation: 682
Prefixes being announced from the AfriNIC address blocks: 819
Unique aggregates announced from the AfriNIC address blocks: 660
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1994240
Equivalent to 0 /8s, 30 /16s and 110 /24s
Percentage of available AfriNIC address space announced: 11.9
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 830 4161 155 Data Communications Bureau
1221 811 1184 585 Telstra Pty Ltd
4766 559 2897 265 Korea Internet Exchange for "
9583 527 41 106 Satyam Infoway Ltd.,
4755 369 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 361 161 33 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 346 5148 38 XTAGE CORPORATION
17557 328 23 164 Pakistan Telecom
703 317 342 244 UUNET
2764 286 274 233 connect.com.au pty ltd
7474 263 268 200 Optus Communications Pty Ltd
9942 236 73 129 COMindico Australia
4802 231 25 140 Wantree Development
9800 225 369 63 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
17633 213 56 6 ASN for Shandong Provincial N
4837 202 2246 109 chinanet IDC center beijing n
10036 202 18 183 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1396 6799 971 AT&T WorldNet Services
701 1278 8423 921 UUNET Technologies, Inc.
1239 926 2855 617 Sprint
4323 781 632 219 Time Warner Telecom
18566 742 193 9 Covad Communications
6197 716 361 339 BellSouth Network Solutions,
6347 665 330 121 SAVVIS Communications Corpora
209 615 3430 498 Qwest
721 605 20862 276 DLA Systems Automation Center
20115 576 384 298 Charter Communications
3356 565 10934 435 Level 3 Communications, LLC
852 511 1142 399 Telus Advanced Communications
7843 507 690 119 Adelphia Corp.
3561 455 2389 346 Cable & Wireless USA
6198 455 398 206 BellSouth Network Solutions,
7132 432 8029 374 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
2386 410 535 232 AT&T Data Communications Serv
22773 410 960 18 Cox Communications, Inc. Atla
4355 388 323 99 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 651 2019 542 UUNET - Commercial IP service
3320 300 2469 237 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
13083 217 51 8 Mannesmann Datenverarbeitung
3246 216 483 213 Song Networks
1257 214 747 183 SWIPnet Swedish IP Network
8708 203 113 181 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 183 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 164 155 112 France Telecom Transpac's Tra
5400 158 274 129 BT Ignite European Backbone
6746 153 29 130 Dynamic Network Technologies,
719 151 288 102 LANLINK autonomous system
3269 143 1195 65 TELECOM ITALIA
8866 133 15 15 Bulgarian Telecommunication C
3303 130 609 129 Swisscom Ltd
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 357 99 53 Servicios Alestra S.A de C.V
6140 341 137 64 ImpSat
8151 286 392 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 159 11 24 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 129 203 87 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 89 9 30 Integrated Systems
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
11311 79 7 19 Sinectis S.A.
5639 76 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
6471 65 73 26 ENTEL CHILE S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
14988 45 16 1 Botswana Telecommunications C
20928 44 16 1 Noor Advanced Technologies AS
24835 33 18 6 RAYA Telecom - Egypt
9129 32 3 4 UUNET Kenya
6713 27 42 10 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 16 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 742 733 Covad Communications
4134 830 675 Data Communications Bureau
4323 781 562 Time Warner Telecom
6347 665 544 SAVVIS Communications Corpora
9583 527 421 Satyam Infoway Ltd.,
22773 410 392 Cox Communications, Inc. Atla
7843 507 388 Adelphia Corp.
6197 716 377 BellSouth Network Solutions,
5668 385 367 Century Telephone
701 1278 357 UUNET Technologies, Inc.
27364 350 331 Armstrong Cable Services
721 605 329 DLA Systems Automation Center
9929 361 328 China Netcom Corp.
6467 356 327 E.Spire Communications, Inc.
22909 358 323 Comcast Cable Corporation
4755 369 319 Videsh Sanchar Nigam Ltd. Aut
1239 926 309 Sprint
17676 346 308 XTAGE CORPORATION
11172 357 304 Servicios Alestra S.A de C.V
4766 559 294 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64606 PRIVATE 80.255.192.0/20 2529 Demon Internet
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/22 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.228.0/22 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/20 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.48.0/20 17633 ASN for Shandong Pro
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
192.43.230.0/24 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 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 /8:19 /9:3 /10:6 /11:14 /12:63
/13:134 /14:304 /15:542 /16:7974 /17:2164 /18:3774
/19:9703 /20:10192 /21:7529 /22:10455 /23:12064 /24:78357
/25:236 /26:185 /27:99 /28:36 /29:10 /30:60
/31:0 /32:16
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 742 Covad Communications
6197 568 716 BellSouth Network Solutions,
7018 534 1396 AT&T WorldNet Services
6347 485 665 SAVVIS Communications Corpora
702 406 651 UUNET - Commercial IP service
9583 369 527 Satyam Infoway Ltd.,
4766 367 559 Korea Internet Exchange for "
1239 364 926 Sprint
701 362 1278 UUNET Technologies, Inc.
5668 337 385 Century Telephone
27364 336 350 Armstrong Cable Services
6198 335 455 BellSouth Network Solutions,
20115 303 576 Charter Communications
9929 289 361 China Netcom Corp.
6467 263 356 E.Spire Communications, Inc.
6517 263 290 Yipes Communications, Inc.
13609 257 300 Choice One Communications Inc
3320 247 300 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
14824 242 265 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:850 13:1 15:5 16:2
17:3 20:9 24:721 32:66 33:2 38:80
40:54 44:4 55:1 56:3 57:16 60:6
61:467 62:511 63:1846 64:2226 65:2048 66:2448
67:358 68:544 69:695 70:65 80:512 81:351
82:188 83:123 84:34 128:95 129:171 130:84
131:172 132:23 134:179 135:17 136:145 137:49
138:168 139:37 140:160 141:105 142:119 143:59
144:101 145:42 146:288 147:93 148:420 149:110
150:88 151:70 152:159 153:68 154:2 155:130
156:59 157:71 158:142 159:160 160:54 161:70
162:390 163:79 164:179 165:161 166:115 167:221
168:283 169:114 170:274 171:9 192:5572 193:2858
194:2083 195:1453 196:577 198:3660 199:3257 200:3679
201:15 202:4827 203:5661 204:3150 205:2068 206:2292
207:2480 208:2150 209:2993 210:1455 211:592 212:988
213:1196 214:94 215:30 216:3755 217:992 218:183
219:122 220:245 221:33 222:117
End of report
