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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 16 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152762
Prefixes after maximum aggregation: 89692
Unique aggregates announced to Internet: 73090
Total ASes present in the Internet Routing Table: 18632
Origin-only ASes present in the Internet Routing Table: 16170
Origin ASes announcing only one prefix: 7590
Transit ASes present in the Internet Routing Table: 2462
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
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: 1359405356
Equivalent to 81 /8s, 6 /16s and 225 /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: 70863
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29863
Total APNIC prefixes after maximum aggregation: 14695
Prefixes being announced from the APNIC address blocks: 27919
Unique aggregates announced from the APNIC address blocks: 14472
APNIC Region origin ASes present in the Internet Routing Table: 2174
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 324
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169415936
Equivalent to 10 /8s, 25 /16s and 21 /24s
Percentage of available APNIC address space announced: 77.3
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: 86310
Total ARIN prefixes after maximum aggregation: 52096
Prefixes being announced from the ARIN address blocks: 66052
Unique aggregates announced from the ARIN address blocks: 23764
ARIN Region origin ASes present in the Internet Routing Table: 9776
ARIN Region origin ASes announcing only one prefix: 3530
ARIN Region transit ASes present in the Internet Routing Table: 968
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236844032
Equivalent to 14 /8s, 29 /16s and 244 /24s
Percentage of available ARIN address space announced: 70.6
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: 28605
Total RIPE prefixes after maximum aggregation: 19814
Prefixes being announced from the RIPE address blocks: 25502
Unique aggregates announced from the RIPE address blocks: 16765
RIPE Region origin ASes present in the Internet Routing Table: 6108
RIPE Region origin ASes announcing only one prefix: 3271
RIPE Region transit ASes present in the Internet Routing Table: 1045
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 182292416
Equivalent to 10 /8s, 221 /16s and 143 /24s
Percentage of available RIPE address space announced: 63.9
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: 6723
Total LACNIC prefixes after maximum aggregation: 2389
Prefixes being announced from the LACNIC address blocks: 6556
Unique aggregates announced from the LACNIC address blocks: 4000
LACNIC Region origin ASes present in the Internet Routing Table: 408
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16890368
Equivalent to 1 /8s, 1 /16s and 186 /24s
Percentage of available LACNIC address space announced: 50.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1253
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 845
Unique aggregates announced from the AfriNIC address blocks: 665
AfriNIC Region origin ASes present in the Internet Routing Table: 94
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: 2083328
Equivalent to 0 /8s, 31 /16s and 202 /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 864 4415 166 Data Communications Bureau
1221 795 1184 569 Telstra Pty Ltd
9583 573 47 37 Satyam Infoway Ltd.,
4766 549 3409 270 Korea Internet Exchange for "
4755 432 175 93 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 355 1873 329 SINET Japan
9929 354 164 40 China Netcom Corp.
17557 322 23 158 Pakistan Telecom
703 312 344 243 UUNET
2764 286 272 232 connect.com.au pty ltd
10036 285 26 261 C&M Communication Co. Ltd.
7474 276 268 205 Optus Communications Pty Ltd
9800 231 381 71 CHINA UNICOM
4802 230 28 139 Wantree Development
9498 230 81 54 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
4780 218 225 27 Digital United Inc.
17974 217 62 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1429 6587 987 AT&T WorldNet Services
701 1073 8351 888 UUNET Technologies, Inc.
721 1051 21808 296 DLA Systems Automation Center
1239 930 2882 619 Sprint
2386 863 529 615 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 810 670 220 Time Warner Telecom
18566 755 208 6 Covad Communications
209 652 3406 506 Qwest
3356 642 10914 458 Level 3 Communications, LLC
20115 592 465 315 Charter Communications
3561 546 2369 415 Cable & Wireless USA
852 523 1142 404 Telus Advanced Communications
7843 483 733 95 Adelphia Corp.
6478 466 814 97 AT&T Worldnet Services
7132 452 8292 385 SBC Internet Services
6198 447 382 202 BellSouth Network Solutions,
27364 440 36 19 Armstrong Cable Services
5668 422 87 18 Century Telephone
22909 421 904 63 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 629 2024 520 UUNET - Commercial IP service
3320 306 2997 243 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 278 463 263 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 223 482 219 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 203 116 187 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 173 982 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 163 18 25 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 156 1330 70 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 145 138 101 France Telecom Transpac's Tra
5400 133 216 117 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 215 99 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 169 14 24 Keytech SA
7303 148 66 24 Telecom Argentina Stet-France
6505 141 90 97 Global One Communicaoes Ltda
6503 127 148 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 86 6 41 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
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
9129 32 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 26 5 5 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
8452 17 20 5 TEDATA
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 1051 755 DLA Systems Automation Center
18566 755 749 Covad Communications
4134 864 698 Data Communications Bureau
4323 810 590 Time Warner Telecom
9583 573 536 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 440 421 Armstrong Cable Services
5668 422 404 Century Telephone
22773 415 392 Cox Communications, Inc. Atla
7843 483 388 Adelphia Corp.
6478 466 369 AT&T Worldnet Services
22909 421 358 Comcast Cable Corporation
6467 374 343 E.Spire Communications, Inc.
4755 432 339 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 930 311 Sprint
13609 328 294 Choice One Communications Inc
4355 392 293 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
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
/13:138 /14:313 /15:560 /16:8196 /17:2321 /18:4008
/19:10004 /20:10583 /21:8127 /22:11308 /23:12854 /24:83337
/25:270 /26:238 /27:125 /28:59 /29:39 /30:130
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 740 755 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 630 863 AT&T Data Communications Serv
7018 584 1429 AT&T WorldNet Services
27364 426 440 Armstrong Cable Services
9583 403 573 Satyam Infoway Ltd.,
702 384 629 UUNET - Commercial IP service
1239 370 930 Sprint
4766 369 549 Korea Internet Exchange for "
5668 365 422 Century Telephone
6198 326 447 BellSouth Network Solutions,
13609 286 328 Choice One Communications Inc
10036 285 285 C&M Communication Co. Ltd.
6467 284 374 E.Spire Communications, Inc.
6517 283 306 Yipes Communications, Inc.
9929 283 354 China Netcom Corp.
20115 270 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 261 810 Time Warner Telecom
701 258 1073 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1457 13:1 15:5 16:2
17:3 18:3 20:5 24:732 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:11 61:692 62:518 63:1850
64:2518 65:2087 66:2525 67:477 68:519 69:843
70:45 72:17 80:528 81:579 82:369 83:214
84:80 85:38 128:120 129:164 130:89 131:191
132:37 134:190 135:30 136:188 137:70 138:188
139:34 140:230 141:110 142:136 143:123 144:165
145:40 146:283 147:95 148:264 149:128 150:92
151:63 152:121 153:70 154:2 155:132 156:62
157:71 158:136 159:162 160:61 161:54 162:380
163:84 164:219 165:169 166:125 167:221 168:366
169:130 170:312 171:8 192:5652 193:3000 194:2216
195:1543 196:584 198:3891 199:3290 200:3889 201:37
202:4979 203:5820 204:3565 205:2106 206:2301 207:2552
208:2110 209:3069 210:1573 211:704 212:1163 213:1249
214:227 215:31 216:3744 217:1066 218:180 219:87
220:299 221:84 222:32
End of report
