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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 24 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153327
Prefixes after maximum aggregation: 89815
Unique aggregates announced to Internet: 73450
Total ASes present in the Internet Routing Table: 18693
Origin-only ASes present in the Internet Routing Table: 16221
Origin ASes announcing only one prefix: 7601
Transit ASes present in the Internet Routing Table: 2472
Transit-only ASes present in the Internet Routing Table: 77
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: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361250152
Equivalent to 81 /8s, 35 /16s and 7 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71076
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30070
Total APNIC prefixes after maximum aggregation: 14709
Prefixes being announced from the APNIC address blocks: 28124
Unique aggregates announced from the APNIC address blocks: 14528
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169674496
Equivalent to 10 /8s, 29 /16s and 7 /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: 86420
Total ARIN prefixes after maximum aggregation: 52091
Prefixes being announced from the ARIN address blocks: 66136
Unique aggregates announced from the ARIN address blocks: 23805
ARIN Region origin ASes present in the Internet Routing Table: 9782
ARIN Region origin ASes announcing only one prefix: 3522
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237070848
Equivalent to 14 /8s, 33 /16s and 106 /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: 28761
Total RIPE prefixes after maximum aggregation: 19925
Prefixes being announced from the RIPE address blocks: 25671
Unique aggregates announced from the RIPE address blocks: 16918
RIPE Region origin ASes present in the Internet Routing Table: 6153
RIPE Region origin ASes announcing only one prefix: 3289
RIPE Region transit ASes present in the Internet Routing Table: 1057
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 183616256
Equivalent to 10 /8s, 241 /16s and 195 /24s
Percentage of available RIPE address space announced: 64.4
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: 6792
Total LACNIC prefixes after maximum aggregation: 2392
Prefixes being announced from the LACNIC address blocks: 6652
Unique aggregates announced from the LACNIC address blocks: 4089
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: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16984832
Equivalent to 1 /8s, 3 /16s and 43 /24s
Percentage of available LACNIC address space announced: 50.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1277
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 859
Unique aggregates announced from the AfriNIC address blocks: 681
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: 2098176
Equivalent to 0 /8s, 32 /16s and 4 /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 869 4433 168 Data Communications Bureau
1221 791 1184 565 Telstra Pty Ltd
9583 580 47 37 Satyam Infoway Ltd.,
4766 552 3409 270 Korea Internet Exchange for "
4755 436 176 91 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.
703 315 344 246 UUNET
17557 306 22 149 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 286 272 229 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 234 381 73 CHINA UNICOM
9498 232 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
7563 225 48 164 Korea Internet Infrastructure
4780 223 225 27 Digital United Inc.
4814 223 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1423 6571 981 AT&T WorldNet Services
701 1087 8355 889 UUNET Technologies, Inc.
721 1073 21838 298 DLA Systems Automation Center
1239 935 2882 625 Sprint
2386 858 528 611 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 821 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 614 10889 449 Level 3 Communications, LLC
20115 574 467 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8290 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 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
702 627 2023 518 UUNET - Commercial IP service
3320 296 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 276 464 264 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
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 318 473 139 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 171 14 24 Keytech SA
7303 156 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 117 148 84 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.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
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 44 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 1073 775 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 869 701 Data Communications Bureau
4323 821 598 Time Warner Telecom
9583 580 543 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 436 345 Videsh Sanchar Nigam Ltd. Aut
6467 376 345 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 935 310 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
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 /15:563 /16:8225 /17:2344 /18:4028
/19:10031 /20:10611 /21:8179 /22:11364 /23:12894 /24:83607
/25:280 /26:240 /27:127 /28:60 /29:35 /30:130
/31:0 /32:52
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 628 858 AT&T Data Communications Serv
7018 583 1423 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 410 580 Satyam Infoway Ltd.,
702 382 627 UUNET - Commercial IP service
1239 372 935 Sprint
4766 372 552 Korea Internet Exchange for "
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
6517 290 313 Yipes Communications, Inc.
10036 290 290 C&M Communication Co. Ltd.
13609 286 328 Choice One Communications Inc
6467 285 376 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 270 1087 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 267 821 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1460 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:703 62:522
63:1849 64:2519 65:2076 66:2530 67:478 68:518
69:856 70:47 71:1 72:21 80:526 81:604
82:371 83:217 84:81 85:41 128:107 129:164
130:89 131:193 132:36 134:190 135:30 136:188
137:69 138:193 139:34 140:230 141:108 142:135
143:122 144:166 145:41 146:283 147:87 148:253
149:129 150:92 151:62 152:118 153:70 154:2
155:132 156:62 157:72 158:145 159:162 160:63
161:60 162:383 163:83 164:190 165:170 166:125
167:222 168:366 169:131 170:313 171:8 192:5655
193:3026 194:2220 195:1546 196:595 198:3888 199:3304
200:3977 201:34 202:5044 203:5833 204:3593 205:2114
206:2308 207:2542 208:2109 209:3051 210:1581 211:706
212:1163 213:1259 214:231 215:31 216:3737 217:1064
218:178 219:89 220:301 221:89 222:33
End of report
