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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 02 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151416
Prefixes after maximum aggregation: 89359
Unique aggregates announced to Internet: 72580
Total ASes present in the Internet Routing Table: 18548
Origin-only ASes present in the Internet Routing Table: 16101
Origin ASes announcing only one prefix: 7565
Transit ASes present in the Internet Routing Table: 2447
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: 17
Prefixes from unregistered ASNs in the Routing Table: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1357654888
Equivalent to 80 /8s, 236 /16s and 43 /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: 69887
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29444
Total APNIC prefixes after maximum aggregation: 14534
Prefixes being announced from the APNIC address blocks: 27496
Unique aggregates announced from the APNIC address blocks: 14364
APNIC Region origin ASes present in the Internet Routing Table: 2165
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: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 168161280
Equivalent to 10 /8s, 5 /16s and 240 /24s
Percentage of available APNIC address space announced: 76.7
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: 85562
Total ARIN prefixes after maximum aggregation: 52011
Prefixes being announced from the ARIN address blocks: 65572
Unique aggregates announced from the ARIN address blocks: 23533
ARIN Region origin ASes present in the Internet Routing Table: 9743
ARIN Region origin ASes announcing only one prefix: 3523
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: 236050944
Equivalent to 14 /8s, 17 /16s and 218 /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: 28454
Total RIPE prefixes after maximum aggregation: 19723
Prefixes being announced from the RIPE address blocks: 25216
Unique aggregates announced from the RIPE address blocks: 16583
RIPE Region origin ASes present in the Internet Routing Table: 6073
RIPE Region origin ASes announcing only one prefix: 3255
RIPE Region transit ASes present in the Internet Routing Table: 1037
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 181498368
Equivalent to 10 /8s, 209 /16s and 114 /24s
Percentage of available RIPE address space announced: 63.6
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: 6692
Total LACNIC prefixes after maximum aggregation: 2386
Prefixes being announced from the LACNIC address blocks: 6510
Unique aggregates announced from the LACNIC address blocks: 4006
LACNIC Region origin ASes present in the Internet Routing Table: 404
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16782848
Equivalent to 1 /8s, 0 /16s and 22 /24s
Percentage of available LACNIC address space announced: 50.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1248
Total AfriNIC prefixes after maximum aggregation: 705
Prefixes being announced from the AfriNIC address blocks: 857
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 20
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: 2088704
Equivalent to 0 /8s, 31 /16s and 223 /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 862 4405 164 Data Communications Bureau
1221 790 1182 567 Telstra Pty Ltd
9583 556 47 40 Satyam Infoway Ltd.,
4766 550 3409 270 Korea Internet Exchange for "
4755 395 134 70 Videsh Sanchar Nigam Ltd. Aut
17676 389 5836 58 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 347 162 34 China Netcom Corp.
703 322 350 247 UUNET
17557 321 23 157 Pakistan Telecom
2764 284 272 232 connect.com.au pty ltd
7474 273 268 203 Optus Communications Pty Ltd
4802 233 28 141 Wantree Development
9800 232 381 71 CHINA UNICOM
9498 228 81 53 BHARTI BT INTERNET LTD.
7563 225 48 164 Korea Internet Infrastructure
10036 217 20 198 C&M Communication Co. Ltd.
4814 210 232 6 China Telecom (Group)
9942 209 72 118 COMindico Australia
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1422 6632 985 AT&T WorldNet Services
701 1069 8384 882 UUNET Technologies, Inc.
721 1040 21084 305 DLA Systems Automation Center
1239 938 2880 613 Sprint
2386 848 530 611 AT&T Data Communications Serv
6197 812 381 352 BellSouth Network Solutions,
4323 807 672 221 Time Warner Telecom
18566 754 208 6 Covad Communications
209 655 3426 507 Qwest
3356 630 10961 459 Level 3 Communications, LLC
20115 592 461 316 Charter Communications
3561 548 2376 416 Cable & Wireless USA
852 519 1142 402 Telus Advanced Communications
7843 478 726 88 Adelphia Corp.
7132 453 8292 385 SBC Internet Services
27364 445 36 19 Armstrong Cable Services
6478 443 782 96 AT&T Worldnet Services
6198 442 378 202 BellSouth Network Solutions,
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
702 633 2026 523 UUNET - Commercial IP service
3320 303 2997 237 Deutsche Telekom AG
3301 280 1100 271 TeliaNet Sweden
8220 280 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
3300 257 167 82 AUCS Communications Services
680 251 2025 239 DFN-IP service G-WiN
3246 227 479 218 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 210 722 175 SWIPnet Swedish IP Network
8708 202 116 186 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 163 972 78 France Telecom Transpac
8866 161 20 7 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
6746 157 46 127 Dynamic Network Technologies,
3269 155 1329 69 TELECOM ITALIA
25186 146 154 102 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 350 139 79 ImpSat
8151 311 471 137 UniNet S.A. de C.V.
16814 218 14 6 NSS, S.A.
11172 214 99 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 155 12 30 Keytech SA
7303 145 67 24 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 129 148 85 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
13999 85 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
14420 79 5 41 ANDINATEL S.A.
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 111 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 90 275 78 The Internetworking Company o
20928 54 16 1 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
9129 32 3 2 UUNET Kenya
6713 30 38 9 Itissalat Al-MAGHRIB
5713 28 141 25 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
12455 20 6 4 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
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
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 1040 735 DLA Systems Automation Center
4134 862 698 Data Communications Bureau
4323 807 586 Time Warner Telecom
9583 556 516 Satyam Infoway Ltd.,
6197 812 460 BellSouth Network Solutions,
27364 445 426 Armstrong Cable Services
5668 417 399 Century Telephone
7843 478 390 Adelphia Corp.
22773 405 385 Cox Communications, Inc. Atla
22909 415 356 Comcast Cable Corporation
6467 380 349 E.Spire Communications, Inc.
6478 443 347 AT&T Worldnet Services
17676 389 331 XTAGE CORPORATION
1239 938 325 Sprint
4755 395 325 Videsh Sanchar Nigam Ltd. Aut
9929 347 313 China Netcom Corp.
4355 392 293 EarthLink, Inc.
4766 550 280 Korea Internet Exchange for "
13609 312 278 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65512 PRIVATE 198.202.65.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.66.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.67.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.68.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.69.0/24 195 San Diego Supercompu
65512 PRIVATE 198.202.70.0/24 195 San Diego Supercompu
65512 PRIVATE 199.165.16.0/24 195 San Diego Supercompu
65512 PRIVATE 199.165.16.0/20 195 San Diego Supercompu
65512 PRIVATE 199.165.17.0/24 195 San Diego Supercompu
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
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 /12:60
/13:139 /14:314 /15:559 /16:8170 /17:2286 /18:3979
/19:9901 /20:10481 /21:8082 /22:11150 /23:12704 /24:82639
/25:263 /26:231 /27:115 /28:68 /29:58 /30:131
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 660 812 BellSouth Network Solutions,
2386 611 848 AT&T Data Communications Serv
7018 582 1422 AT&T WorldNet Services
27364 430 445 Armstrong Cable Services
702 388 633 UUNET - Commercial IP service
9583 387 556 Satyam Infoway Ltd.,
1239 385 938 Sprint
4766 370 550 Korea Internet Exchange for "
5668 360 417 Century Telephone
6198 323 442 BellSouth Network Solutions,
6467 289 380 E.Spire Communications, Inc.
6517 278 301 Yipes Communications, Inc.
9929 277 347 China Netcom Corp.
20115 271 592 Charter Communications
13609 270 312 Choice One Communications Inc
21502 269 272 NUMERICABLE is a cabled netwo
4323 257 807 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
3320 248 303 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1433 13:1 15:5 16:2
17:3 18:4 20:5 24:734 32:71 33:3
38:86 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:7 61:654 62:511 63:1859
64:2486 65:2068 66:2475 67:462 68:521 69:806
70:42 72:5 80:512 81:575 82:360 83:209
84:63 85:3 128:120 129:163 130:89 131:192
132:29 134:188 135:30 136:187 137:78 138:189
139:36 140:224 141:108 142:133 143:120 144:164
145:40 146:280 147:96 148:263 149:111 150:93
151:62 152:124 153:68 154:2 155:131 156:62
157:70 158:136 159:162 160:59 161:59 162:378
163:84 164:219 165:163 166:120 167:221 168:355
169:124 170:315 171:9 192:5659 193:2968 194:2182
195:1552 196:583 198:3851 199:3297 200:3866 201:27
202:4940 203:5788 204:3568 205:2076 206:2313 207:2619
208:2100 209:3091 210:1522 211:647 212:1166 213:1233
214:226 215:31 216:3702 217:1067 218:179 219:84
220:288 221:67 222:22
End of report
