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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 23 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151172
Prefixes after maximum aggregation: 89073
Unique aggregates announced to Internet: 72181
Total ASes present in the Internet Routing Table: 18478
Origin-only ASes present in the Internet Routing Table: 16023
Origin ASes announcing only one prefix: 7540
Transit ASes present in the Internet Routing Table: 2455
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 11
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1355316840
Equivalent to 80 /8s, 200 /16s and 126 /24s
Percentage of available address space announced: 36.6
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 69660
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29313
Total APNIC prefixes after maximum aggregation: 14434
Prefixes being announced from the APNIC address blocks: 27370
Unique aggregates announced from the APNIC address blocks: 14214
APNIC Region origin ASes present in the Internet Routing Table: 2166
APNIC Region origin ASes announcing only one prefix: 650
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 167242496
Equivalent to 9 /8s, 247 /16s and 235 /24s
Percentage of available APNIC address space announced: 76.3
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: 85806
Total ARIN prefixes after maximum aggregation: 52031
Prefixes being announced from the ARIN address blocks: 65724
Unique aggregates announced from the ARIN address blocks: 23571
ARIN Region origin ASes present in the Internet Routing Table: 9729
ARIN Region origin ASes announcing only one prefix: 3522
ARIN Region transit ASes present in the Internet Routing Table: 957
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 235694336
Equivalent to 14 /8s, 12 /16s and 105 /24s
Percentage of available ARIN address space announced: 70.2
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: 28186
Total RIPE prefixes after maximum aggregation: 19555
Prefixes being announced from the RIPE address blocks: 24938
Unique aggregates announced from the RIPE address blocks: 16372
RIPE Region origin ASes present in the Internet Routing Table: 6017
RIPE Region origin ASes announcing only one prefix: 3227
RIPE Region transit ASes present in the Internet Routing Table: 1041
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 180645376
Equivalent to 10 /8s, 196 /16s and 110 /24s
Percentage of available RIPE address space announced: 63.3
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: 6606
Total LACNIC prefixes after maximum aggregation: 2358
Prefixes being announced from the LACNIC address blocks: 6459
Unique aggregates announced from the LACNIC address blocks: 3978
LACNIC Region origin ASes present in the Internet Routing Table: 404
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16623360
Equivalent to 0 /8s, 253 /16s and 167 /24s
Percentage of available LACNIC address space announced: 49.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1251
Total AfriNIC prefixes after maximum aggregation: 695
Prefixes being announced from the AfriNIC address blocks: 859
Unique aggregates announced from the AfriNIC address blocks: 668
AfriNIC Region origin ASes present in the Internet Routing Table: 93
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: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2067200
Equivalent to 0 /8s, 31 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 12.3
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 861 4405 163 Data Communications Bureau
1221 794 1182 569 Telstra Pty Ltd
9583 552 47 40 Satyam Infoway Ltd.,
4766 545 3408 266 Korea Internet Exchange for "
4755 385 133 66 Videsh Sanchar Nigam Ltd. Aut
17676 380 5692 56 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 344 161 33 China Netcom Corp.
703 318 346 246 UUNET
17557 315 23 156 Pakistan Telecom
2764 286 273 233 connect.com.au pty ltd
7474 267 268 199 Optus Communications Pty Ltd
4802 233 28 141 Wantree Development
9800 230 380 70 CHINA UNICOM
7563 229 48 166 Korea Internet Infrastructure
9942 229 72 123 COMindico Australia
9498 227 81 52 BHARTI BT INTERNET LTD.
10036 217 20 198 C&M Communication Co. Ltd.
4814 210 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1422 6633 984 AT&T WorldNet Services
701 1238 8383 884 UUNET Technologies, Inc.
721 1027 21018 299 DLA Systems Automation Center
1239 929 2881 616 Sprint
2386 850 530 611 AT&T Data Communications Serv
6197 810 381 353 BellSouth Network Solutions,
4323 804 672 221 Time Warner Telecom
18566 754 208 6 Covad Communications
3356 666 10959 458 Level 3 Communications, LLC
209 656 3429 511 Qwest
20115 607 462 326 Charter Communications
3561 547 2375 418 Cable & Wireless USA
852 518 1141 398 Telus Advanced Communications
7843 482 726 85 Adelphia Corp.
27364 451 36 19 Armstrong Cable Services
7132 448 8289 380 SBC Internet Services
6198 439 377 202 BellSouth Network Solutions,
6478 435 775 96 AT&T Worldnet Services
5668 417 87 18 Century Telephone
22909 415 881 59 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 634 2027 524 UUNET - Commercial IP service
3320 302 2997 237 Deutsche Telekom AG
8220 280 463 265 COLT Internet - International
3301 277 1099 268 TeliaNet Sweden
3300 256 167 81 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
21502 246 40 3 NUMERICABLE is a cabled netwo
13083 217 51 8 Mannesmann Datenverarbeitung
3246 211 475 207 Song Networks
1257 210 722 175 SWIPnet Swedish IP Network
8708 205 116 186 Romania Data Systems S.A.
5515 192 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 162 956 78 France Telecom Transpac
8866 160 20 7 Bulgarian Telecommunication C
719 158 322 105 LANLINK autonomous system
6746 155 30 126 Dynamic Network Technologies,
3269 151 1289 68 TELECOM ITALIA
25186 148 154 104 France Telecom Transpac's Tra
5400 142 206 115 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 139 73 ImpSat
8151 307 471 133 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 210 99 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 153 12 34 Keytech SA
6505 141 90 95 Global One Communicaoes Ltda
7303 141 65 22 Telecom Argentina Stet-France
6503 125 164 83 AVANTEL, S.A.
11992 103 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.
6535 85 7 18 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
14420 82 5 33 ANDINATEL S.A.
4270 80 18 9 Red de Interconexion Universi
13999 77 52 9 Mega Cable S.A. de C.V.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 225 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 98 276 71 The Internetworking Company o
20928 55 16 1 Noor Advanced Technologies AS
24835 41 34 7 RAYA Telecom - Egypt
9129 35 3 4 UUNET Kenya
6713 30 38 9 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
8452 18 20 5 TEDATA
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21280 16 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
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 754 748 Covad Communications
721 1027 728 DLA Systems Automation Center
4134 861 698 Data Communications Bureau
4323 804 583 Time Warner Telecom
9583 552 512 Satyam Infoway Ltd.,
6197 810 457 BellSouth Network Solutions,
27364 451 432 Armstrong Cable Services
5668 417 399 Century Telephone
7843 482 397 Adelphia Corp.
22773 404 385 Cox Communications, Inc. Atla
22909 415 356 Comcast Cable Corporation
701 1238 354 UUNET Technologies, Inc.
6467 380 349 E.Spire Communications, Inc.
6478 435 339 AT&T Worldnet Services
17676 380 324 XTAGE CORPORATION
4755 385 319 Videsh Sanchar Nigam Ltd. Aut
1239 929 313 Sprint
9929 344 311 China Netcom Corp.
13609 333 298 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65400 PRIVATE 192.55.193.0/24 1290 PSINet UK Ltd.
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.
65002 PRIVATE 212.115.225.0/24 8690 Comint Ltd
65002 PRIVATE 212.115.226.0/24 8690 Comint Ltd
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
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
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 /12:61
/13:140 /14:315 /15:556 /16:8146 /17:2285 /18:3962
/19:9872 /20:10438 /21:8038 /22:11098 /23:12708 /24:82653
/25:248 /26:226 /27:116 /28:69 /29:39 /30:118
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 657 810 BellSouth Network Solutions,
2386 613 850 AT&T Data Communications Serv
7018 578 1422 AT&T WorldNet Services
27364 436 451 Armstrong Cable Services
702 388 634 UUNET - Commercial IP service
9583 383 552 Satyam Infoway Ltd.,
1239 369 929 Sprint
4766 366 545 Korea Internet Exchange for "
5668 360 417 Century Telephone
701 358 1238 UUNET Technologies, Inc.
6198 320 439 BellSouth Network Solutions,
13609 290 333 Choice One Communications Inc
6467 289 380 E.Spire Communications, Inc.
20115 286 607 Charter Communications
6517 278 301 Yipes Communications, Inc.
9929 275 344 China Netcom Corp.
11456 258 303 Carolina Online, Inc.
4323 256 804 Time Warner Telecom
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 12:1434 13:1 15:5 16:2
17:3 20:5 24:775 32:71 33:2 38:84
40:55 44:3 47:2 52:3 55:1 56:3
57:24 60:3 61:635 62:504 63:1864 64:2478
65:2071 66:2465 67:457 68:534 69:790 70:40
72:10 80:525 81:538 82:341 83:208 84:54
128:113 129:163 130:89 131:191 132:26 134:185
135:30 136:188 137:80 138:189 139:36 140:222
141:107 142:127 143:120 144:157 145:42 146:293
147:95 148:329 149:111 150:93 151:62 152:130
153:68 154:2 155:131 156:57 157:69 158:135
159:164 160:61 161:73 162:378 163:83 164:218
165:162 166:117 167:222 168:356 169:123 170:312
171:9 192:5665 193:2940 194:2170 195:1534 196:585
198:3876 199:3308 200:3840 201:25 202:4935 203:5790
204:3591 205:2107 206:2332 207:2623 208:2107 209:3101
210:1516 211:649 212:1159 213:1233 214:224 215:31
216:3702 217:1056 218:178 219:83 220:283 221:66
222:21
End of report
