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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 24 Nov, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151081
Prefixes after maximum aggregation: 89085
Unique aggregates announced to Internet: 72212
Total ASes present in the Internet Routing Table: 18504
Origin-only ASes present in the Internet Routing Table: 16045
Origin ASes announcing only one prefix: 7565
Transit ASes present in the Internet Routing Table: 2459
Transit-only ASes present in the Internet Routing Table: 71
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: 1355490408
Equivalent to 80 /8s, 203 /16s and 36 /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: 69654
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29275
Total APNIC prefixes after maximum aggregation: 14440
Prefixes being announced from the APNIC address blocks: 27337
Unique aggregates announced from the APNIC address blocks: 14194
APNIC Region origin ASes present in the Internet Routing Table: 2163
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 167229184
Equivalent to 9 /8s, 247 /16s and 183 /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: 85745
Total ARIN prefixes after maximum aggregation: 52011
Prefixes being announced from the ARIN address blocks: 65657
Unique aggregates announced from the ARIN address blocks: 23572
ARIN Region origin ASes present in the Internet Routing Table: 9740
ARIN Region origin ASes announcing only one prefix: 3531
ARIN Region transit ASes present in the Internet Routing Table: 960
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 235787008
Equivalent to 14 /8s, 13 /16s and 211 /24s
Percentage of available ARIN address space announced: 70.3
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: 28198
Total RIPE prefixes after maximum aggregation: 19585
Prefixes being announced from the RIPE address blocks: 24950
Unique aggregates announced from the RIPE address blocks: 16421
RIPE Region origin ASes present in the Internet Routing Table: 6036
RIPE Region origin ASes announcing only one prefix: 3244
RIPE Region transit ASes present in the Internet Routing Table: 1040
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 180720384
Equivalent to 10 /8s, 197 /16s and 147 /24s
Percentage of available RIPE address space announced: 63.4
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: 6603
Total LACNIC prefixes after maximum aggregation: 2352
Prefixes being announced from the LACNIC address blocks: 6456
Unique aggregates announced from the LACNIC address blocks: 3972
LACNIC Region origin ASes present in the Internet Routing Table: 405
LACNIC Region origin ASes announcing only one prefix: 121
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: 16685824
Equivalent to 0 /8s, 254 /16s and 155 /24s
Percentage of available LACNIC address space announced: 49.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1250
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 866
Unique aggregates announced from the AfriNIC address blocks: 671
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: 2072320
Equivalent to 0 /8s, 31 /16s and 159 /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 861 4405 163 Data Communications Bureau
1221 793 1182 568 Telstra Pty Ltd
9583 552 47 40 Satyam Infoway Ltd.,
4766 547 3408 268 Korea Internet Exchange for "
4755 388 134 70 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 314 23 156 Pakistan Telecom
2764 286 273 232 connect.com.au pty ltd
7474 268 268 200 Optus Communications Pty Ltd
4802 234 28 142 Wantree Development
9800 231 380 70 CHINA UNICOM
7563 229 48 166 Korea Internet Infrastructure
9942 229 72 123 COMindico Australia
9498 227 81 53 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 983 AT&T WorldNet Services
701 1236 8382 882 UUNET Technologies, Inc.
721 1031 21074 302 DLA Systems Automation Center
1239 924 2880 612 Sprint
2386 851 531 612 AT&T Data Communications Serv
6197 810 381 353 BellSouth Network Solutions,
4323 808 672 221 Time Warner Telecom
18566 754 208 6 Covad Communications
209 654 3429 508 Qwest
3356 634 10962 459 Level 3 Communications, LLC
20115 606 462 326 Charter Communications
3561 551 2377 419 Cable & Wireless USA
852 517 1141 397 Telus Advanced Communications
7843 478 725 85 Adelphia Corp.
7132 450 8289 382 SBC Internet Services
27364 444 36 19 Armstrong Cable Services
6198 438 377 202 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 279 1100 270 TeliaNet Sweden
3300 257 167 82 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
21502 246 40 3 NUMERICABLE is a cabled netwo
3246 220 478 216 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
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 157 30 127 Dynamic Network Technologies,
3269 151 1289 68 TELECOM ITALIA
25186 148 154 104 France Telecom Transpac's Tra
5400 141 206 114 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 191 94 20 Telefonica Del Peru
11664 154 12 30 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 78 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 33 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
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
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 1031 729 DLA Systems Automation Center
4134 861 698 Data Communications Bureau
4323 808 587 Time Warner Telecom
9583 552 512 Satyam Infoway Ltd.,
6197 810 457 BellSouth Network Solutions,
27364 444 425 Armstrong Cable Services
5668 417 399 Century Telephone
7843 478 393 Adelphia Corp.
22773 404 385 Cox Communications, Inc. Atla
22909 415 356 Comcast Cable Corporation
701 1236 354 UUNET Technologies, Inc.
6467 380 349 E.Spire Communications, Inc.
6478 435 339 AT&T Worldnet Services
17676 380 324 XTAGE CORPORATION
4755 388 318 Videsh Sanchar Nigam Ltd. Aut
1239 924 312 Sprint
9929 344 311 China Netcom Corp.
4355 392 293 EarthLink, Inc.
20115 606 280 Charter Communications
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 /16:8145 /17:2273 /18:3963
/19:9881 /20:10440 /21:8049 /22:11097 /23:12694 /24:82566
/25:248 /26:225 /27:117 /28:68 /29:39 /30:117
/31:0 /32:43
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 614 851 AT&T Data Communications Serv
7018 578 1422 AT&T WorldNet Services
27364 429 444 Armstrong Cable Services
702 389 634 UUNET - Commercial IP service
9583 383 552 Satyam Infoway Ltd.,
1239 368 924 Sprint
4766 367 547 Korea Internet Exchange for "
5668 360 417 Century Telephone
701 358 1236 UUNET Technologies, Inc.
6198 319 438 BellSouth Network Solutions,
6467 289 380 E.Spire Communications, Inc.
20115 285 606 Charter Communications
6517 279 302 Yipes Communications, Inc.
9929 275 344 China Netcom Corp.
13609 269 311 Choice One Communications Inc
4323 258 808 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1436 13:1 15:5 16:2
17:3 20:5 24:767 32:71 33:2 38:84
40:55 44:3 47:2 52:3 55:1 56:3
57:24 60:3 61:636 62:500 63:1862 64:2474
65:2070 66:2468 67:457 68:536 69:794 70:40
72:10 80:528 81:555 82:342 83:208 84:53
128:116 129:164 130:89 131:192 132:26 134:185
135:30 136:189 137:80 138:188 139:36 140:222
141:107 142:129 143:120 144:157 145:42 146:283
147:95 148:329 149:111 150:93 151:62 152:129
153:68 154:2 155:131 156:59 157:69 158:135
159:164 160:59 161:73 162:379 163:83 164:218
165:162 166:117 167:223 168:356 169:123 170:313
171:9 192:5665 193:2943 194:2168 195:1535 196:589
198:3876 199:3307 200:3839 201:25 202:4902 203:5790
204:3567 205:2093 206:2327 207:2624 208:2104 209:3098
210:1519 211:649 212:1145 213:1230 214:224 215:31
216:3700 217:1050 218:178 219:84 220:283 221:66
222:21
End of report
