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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 10 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152376
Prefixes after maximum aggregation: 89546
Unique aggregates announced to Internet: 73005
Total ASes present in the Internet Routing Table: 18610
Origin-only ASes present in the Internet Routing Table: 16139
Origin ASes announcing only one prefix: 7585
Transit ASes present in the Internet Routing Table: 2471
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 17
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1357436776
Equivalent to 80 /8s, 232 /16s and 215 /24s
Percentage of available address space announced: 36.6
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70479
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29655
Total APNIC prefixes after maximum aggregation: 14615
Prefixes being announced from the APNIC address blocks: 27716
Unique aggregates announced from the APNIC address blocks: 14453
APNIC Region origin ASes present in the Internet Routing Table: 2171
APNIC Region origin ASes announcing only one prefix: 652
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 168606208
Equivalent to 10 /8s, 12 /16s and 186 /24s
Percentage of available APNIC address space announced: 76.9
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: 86151
Total ARIN prefixes after maximum aggregation: 52086
Prefixes being announced from the ARIN address blocks: 65966
Unique aggregates announced from the ARIN address blocks: 23726
ARIN Region origin ASes present in the Internet Routing Table: 9764
ARIN Region origin ASes announcing only one prefix: 3525
ARIN Region transit ASes present in the Internet Routing Table: 970
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236404736
Equivalent to 14 /8s, 23 /16s and 64 /24s
Percentage of available ARIN address space announced: 70.5
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, 31744-33791
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: 28551
Total RIPE prefixes after maximum aggregation: 19753
Prefixes being announced from the RIPE address blocks: 25435
Unique aggregates announced from the RIPE address blocks: 16603
RIPE Region origin ASes present in the Internet Routing Table: 6101
RIPE Region origin ASes announcing only one prefix: 3268
RIPE Region transit ASes present in the Internet Routing Table: 1045
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 181864960
Equivalent to 10 /8s, 215 /16s and 10 /24s
Percentage of available RIPE address space announced: 63.8
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, 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: 6763
Total LACNIC prefixes after maximum aggregation: 2395
Prefixes being announced from the LACNIC address blocks: 6591
Unique aggregates announced from the LACNIC address blocks: 4040
LACNIC Region origin ASes present in the Internet Routing Table: 406
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16885504
Equivalent to 1 /8s, 1 /16s and 167 /24s
Percentage of available LACNIC address space announced: 50.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1249
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 842
Unique aggregates announced from the AfriNIC address blocks: 674
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2083584
Equivalent to 0 /8s, 31 /16s and 203 /24s
Percentage of available AfriNIC address space announced: 12.4
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 863 4413 165 Data Communications Bureau
1221 793 1184 568 Telstra Pty Ltd
9583 566 47 43 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 409 142 79 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 352 163 38 China Netcom Corp.
703 324 350 249 UUNET
17557 320 23 157 Pakistan Telecom
2764 285 272 232 connect.com.au pty ltd
7474 272 268 203 Optus Communications Pty Ltd
9800 232 381 71 CHINA UNICOM
4802 230 28 139 Wantree Development
9498 228 81 53 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
10036 217 20 198 C&M Communication Co. Ltd.
4780 216 225 26 Digital United Inc.
4814 213 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1425 6616 983 AT&T WorldNet Services
701 1063 8382 877 UUNET Technologies, Inc.
721 1045 21105 307 DLA Systems Automation Center
1239 933 2883 622 Sprint
2386 864 530 615 AT&T Data Communications Serv
6197 822 384 355 BellSouth Network Solutions,
4323 811 670 220 Time Warner Telecom
18566 754 208 6 Covad Communications
209 651 3422 507 Qwest
3356 644 10946 459 Level 3 Communications, LLC
20115 592 462 317 Charter Communications
3561 546 2369 415 Cable & Wireless USA
852 522 1142 404 Telus Advanced Communications
7843 481 726 92 Adelphia Corp.
6478 461 806 96 AT&T Worldnet Services
7132 452 8292 384 SBC Internet Services
6198 447 382 203 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 422 87 18 Century Telephone
22909 416 897 60 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2023 519 UUNET - Commercial IP service
3320 305 2997 239 Deutsche Telekom AG
3301 279 1098 270 TeliaNet Sweden
8220 279 464 264 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 482 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 210 722 175 SWIPnet Swedish IP Network
8708 194 115 178 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 172 990 75 France Telecom Transpac
6746 167 46 135 Dynamic Network Technologies,
8866 165 20 7 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 155 1329 69 TELECOM ITALIA
3300 154 165 78 AUCS Communications Services
25186 144 138 101 France Telecom Transpac's Tra
3303 132 611 128 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 139 72 ImpSat
8151 311 471 137 UniNet S.A. de C.V.
16814 218 14 6 NSS, S.A.
11172 215 99 55 Servicios Alestra S.A de C.V
6147 191 94 20 Telefonica Del Peru
11664 171 14 20 Keytech SA
7303 161 66 26 Telecom Argentina Stet-France
6505 141 90 97 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
11311 86 8 23 Sinectis S.A.
14420 85 6 41 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 112 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
9129 32 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 4 5 Jambonet Autonomous system
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
8452 17 20 5 TEDATA
21280 17 2 3 Swift Global Kenya Ltd.Is an
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 754 748 Covad Communications
721 1045 738 DLA Systems Automation Center
4134 863 698 Data Communications Bureau
4323 811 591 Time Warner Telecom
9583 566 523 Satyam Infoway Ltd.,
6197 822 467 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 422 404 Century Telephone
7843 481 389 Adelphia Corp.
22773 410 388 Cox Communications, Inc. Atla
6478 461 365 AT&T Worldnet Services
22909 416 356 Comcast Cable Corporation
6467 377 346 E.Spire Communications, Inc.
4755 409 330 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 352 314 China Netcom Corp.
1239 933 311 Sprint
13609 328 294 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
6140 351 279 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.100.100.0/24 1239 Sprint
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 /8:19 /9:3 /10:7 /11:14 /12:58
/13:138 /14:313 /15:558 /16:8185 /17:2303 /18:4003
/19:9970 /20:10545 /21:8119 /22:11222 /23:12840 /24:83166
/25:266 /26:241 /27:125 /28:59 /29:40 /30:133
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 668 822 BellSouth Network Solutions,
2386 629 864 AT&T Data Communications Serv
7018 582 1425 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 398 566 Satyam Infoway Ltd.,
702 384 628 UUNET - Commercial IP service
1239 371 933 Sprint
4766 368 548 Korea Internet Exchange for "
5668 365 422 Century Telephone
6198 326 447 BellSouth Network Solutions,
6467 287 377 E.Spire Communications, Inc.
13609 286 328 Choice One Communications Inc
9929 282 352 China Netcom Corp.
6517 281 304 Yipes Communications, Inc.
20115 271 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 261 811 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
3320 249 305 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:4 8:10 12:1452 13:1 15:5
16:2 17:3 18:4 20:5 24:737 32:67
33:3 38:88 40:54 44:3 47:2 52:3
55:1 56:3 57:23 60:8 61:656 62:510
63:1858 64:2510 65:2082 66:2514 67:469 68:522
69:836 70:44 72:16 80:527 81:582 82:362
83:210 84:69 85:4 128:120 129:164 130:89
131:192 132:28 134:190 135:30 136:187 137:71
138:189 139:35 140:226 141:109 142:135 143:118
144:165 145:40 146:283 147:96 148:262 149:112
150:92 151:63 152:121 153:69 154:2 155:132
156:62 157:71 158:130 159:162 160:61 161:60
162:379 163:83 164:218 165:168 166:123 167:219
168:365 169:125 170:314 171:8 192:5665 193:2985
194:2204 195:1557 196:583 198:3899 199:3302 200:3938
201:31 202:4963 203:5821 204:3575 205:2095 206:2286
207:2591 208:2099 209:3067 210:1539 211:680 212:1176
213:1236 214:229 215:31 216:3739 217:1073 218:181
219:95 220:297 221:79 222:32
End of report
