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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 22 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153074
Prefixes after maximum aggregation: 89777
Unique aggregates announced to Internet: 73305
Total ASes present in the Internet Routing Table: 18674
Origin-only ASes present in the Internet Routing Table: 16205
Origin ASes announcing only one prefix: 7592
Transit ASes present in the Internet Routing Table: 2469
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: 18
Prefixes from unregistered ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1360833884
Equivalent to 81 /8s, 28 /16s and 173 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70968
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29965
Total APNIC prefixes after maximum aggregation: 14719
Prefixes being announced from the APNIC address blocks: 28027
Unique aggregates announced from the APNIC address blocks: 14508
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169586688
Equivalent to 10 /8s, 27 /16s and 176 /24s
Percentage of available APNIC address space announced: 77.4
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: 86321
Total ARIN prefixes after maximum aggregation: 52082
Prefixes being announced from the ARIN address blocks: 66105
Unique aggregates announced from the ARIN address blocks: 23792
ARIN Region origin ASes present in the Internet Routing Table: 9782
ARIN Region origin ASes announcing only one prefix: 3521
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: 237083904
Equivalent to 14 /8s, 33 /16s and 157 /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: 28729
Total RIPE prefixes after maximum aggregation: 19883
Prefixes being announced from the RIPE address blocks: 25638
Unique aggregates announced from the RIPE address blocks: 16840
RIPE Region origin ASes present in the Internet Routing Table: 6136
RIPE Region origin ASes announcing only one prefix: 3280
RIPE Region transit ASes present in the Internet Routing Table: 1050
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 183427328
Equivalent to 10 /8s, 238 /16s and 225 /24s
Percentage of available RIPE address space announced: 64.3
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: 6773
Total LACNIC prefixes after maximum aggregation: 2395
Prefixes being announced from the LACNIC address blocks: 6617
Unique aggregates announced from the LACNIC address blocks: 4067
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16918784
Equivalent to 1 /8s, 2 /16s and 41 /24s
Percentage of available LACNIC address space announced: 50.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1278
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 851
Unique aggregates announced from the AfriNIC address blocks: 676
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
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: 2097408
Equivalent to 0 /8s, 32 /16s and 1 /24s
Percentage of available AfriNIC address space announced: 12.5
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 868 4433 168 Data Communications Bureau
1221 793 1184 567 Telstra Pty Ltd
9583 579 47 37 Satyam Infoway Ltd.,
4766 550 3409 271 Korea Internet Exchange for "
4755 442 176 93 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 354 164 40 China Netcom Corp.
703 314 344 245 UUNET
17557 305 22 148 Pakistan Telecom
10036 289 26 265 C&M Communication Co. Ltd.
2764 287 272 230 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 232 381 71 CHINA UNICOM
4802 231 28 140 Wantree Development
9498 230 81 54 BHARTI BT INTERNET LTD.
7563 227 48 165 Korea Internet Infrastructure
4780 223 225 27 Digital United Inc.
4814 220 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1414 6554 975 AT&T WorldNet Services
701 1086 8355 890 UUNET Technologies, Inc.
721 1067 21840 299 DLA Systems Automation Center
1239 908 2865 609 Sprint
2386 859 528 612 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 818 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 655 3405 502 Qwest
3356 616 10889 450 Level 3 Communications, LLC
20115 573 465 300 Charter Communications
3561 549 2385 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 483 733 95 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
7132 452 8292 385 SBC Internet Services
6198 447 382 202 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 423 87 18 Century Telephone
22909 419 907 65 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 297 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 275 463 263 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 206 118 190 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1361 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 144 138 100 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 139 72 ImpSat
8151 319 473 140 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 55 Servicios Alestra S.A de C.V
6147 188 94 20 Telefonica Del Peru
11664 169 14 24 Keytech SA
7303 146 68 18 Telecom Argentina Stet-France
6505 140 90 96 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
14420 87 6 42 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
10481 82 32 7 Prima S.A.
13999 82 52 9 Mega Cable S.A. de C.V.
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 113 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
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 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
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
721 1067 768 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 868 700 Data Communications Bureau
4323 818 595 Time Warner Telecom
9583 579 542 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 423 405 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 483 388 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 442 349 Videsh Sanchar Nigam Ltd. Aut
6467 376 345 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 908 299 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
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
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
192.200.100.0/24 7018 AT&T WorldNet Services
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 /11:15 /12:59
/13:139 /14:315 /15:562 /16:8224 /17:2337 /18:4007
/19:10014 /20:10613 /21:8155 /22:11358 /23:12924 /24:83452
/25:268 /26:238 /27:127 /28:45 /29:26 /30:122
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 629 859 AT&T Data Communications Serv
7018 583 1414 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 409 579 Satyam Infoway Ltd.,
702 383 628 UUNET - Commercial IP service
4766 370 550 Korea Internet Exchange for "
5668 366 423 Century Telephone
1239 354 908 Sprint
6198 326 447 BellSouth Network Solutions,
10036 289 289 C&M Communication Co. Ltd.
6517 286 309 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
6467 285 376 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 270 1086 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 265 818 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1456 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:66 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 60:12 61:698 62:521 63:1847
64:2518 65:2076 66:2530 67:479 68:520 69:857
70:46 71:1 72:21 80:530 81:603 82:372
83:214 84:81 85:33 128:107 129:163 130:74
131:193 132:36 134:187 135:30 136:188 137:70
138:193 139:34 140:230 141:110 142:135 143:123
144:165 145:41 146:283 147:95 148:262 149:129
150:92 151:62 152:118 153:70 154:2 155:132
156:62 157:72 158:138 159:162 160:61 161:60
162:366 163:83 164:222 165:170 166:125 167:222
168:366 169:131 170:313 171:8 192:5654 193:3016
194:2214 195:1543 196:588 198:3889 199:3307 200:3954
201:34 202:4989 203:5826 204:3585 205:2093 206:2296
207:2543 208:2111 209:3048 210:1580 211:703 212:1160
213:1259 214:230 215:31 216:3748 217:1070 218:179
219:88 220:300 221:88 222:32
End of report
