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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 24 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 172442
Prefixes after maximum aggregation: 98028
Unique aggregates announced to Internet: 83654
Total ASes present in the Internet Routing Table: 20723
Origin-only ASes present in the Internet Routing Table: 18026
Origin ASes announcing only one prefix: 8538
Transit ASes present in the Internet Routing Table: 2697
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 26
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1435190336
Equivalent to 85 /8s, 139 /16s and 68 /24s
Percentage of available address space announced: 38.7
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 82252
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35927
Total APNIC prefixes after maximum aggregation: 15748
Prefixes being announced from the APNIC address blocks: 33721
Unique aggregates announced from the APNIC address blocks: 16693
APNIC Region origin ASes present in the Internet Routing Table: 2389
APNIC Region origin ASes announcing only one prefix: 693
APNIC Region transit ASes present in the Internet Routing Table: 366
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 203941248
Equivalent to 12 /8s, 39 /16s and 229 /24s
Percentage of available APNIC address space announced: 75.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 91600
Total ARIN prefixes after maximum aggregation: 55493
Prefixes being announced from the ARIN address blocks: 71631
Unique aggregates announced from the ARIN address blocks: 26937
ARIN Region origin ASes present in the Internet Routing Table: 10267
ARIN Region origin ASes announcing only one prefix: 3783
ARIN Region transit ASes present in the Internet Routing Table: 958
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 272879872
Equivalent to 16 /8s, 67 /16s and 209 /24s
Percentage of available ARIN address space announced: 67.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 33528
Total RIPE prefixes after maximum aggregation: 22743
Prefixes being announced from the RIPE address blocks: 30536
Unique aggregates announced from the RIPE address blocks: 20419
RIPE Region origin ASes present in the Internet Routing Table: 7221
RIPE Region origin ASes announcing only one prefix: 3813
RIPE Region transit ASes present in the Internet Routing Table: 1190
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 220927744
Equivalent to 13 /8s, 43 /16s and 23 /24s
Percentage of available RIPE address space announced: 65.8
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9590
Total LACNIC prefixes after maximum aggregation: 3224
Prefixes being announced from the LACNIC address blocks: 7983
Unique aggregates announced from the LACNIC address blocks: 4619
LACNIC Region origin ASes present in the Internet Routing Table: 641
LACNIC Region origin ASes announcing only one prefix: 205
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22289152
Equivalent to 1 /8s, 84 /16s and 27 /24s
Percentage of available LACNIC address space announced: 33.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1767
Total AfriNIC prefixes after maximum aggregation: 820
Prefixes being announced from the AfriNIC address blocks: 1087
Unique aggregates announced from the AfriNIC address blocks: 804
AfriNIC Region origin ASes present in the Internet Routing Table: 140
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2842112
Equivalent to 0 /8s, 43 /16s and 94 /24s
Percentage of available AfriNIC address space announced: 8.5
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1006 6230 211 CHINANET-BACKBONE
9583 813 77 13 Sify Limited
1221 751 1327 513 Telstra Pty Ltd
4755 724 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 619 3927 290 Korea Telecom (KIX)
7545 510 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 388 211 58 BHARTI BT INTERNET LTD.
2907 339 1763 316 SINET Japan
17488 334 20 9 Hathway IP Over Cable Interne
7474 330 258 227 SingTel Optus Pty Ltd
9929 330 224 46 China Netcom Corp.
17557 328 24 161 Pakistan Telecom
4802 325 72 154 Wantree Development
18302 293 109 172 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 265 68 18 Reliance Infocom Ltd Internet
703 255 260 211 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1511 6357 988 AT&T WorldNet Services
4323 1187 705 231 Time Warner Telecom
721 1080 21938 313 DLA Systems Automation Center
174 1052 5847 991 Cogent Communications
701 1002 8138 839 UUNET Technologies, Inc.
6197 945 399 488 BellSouth Network Solutions,
2386 925 513 687 AT&T Data Communications Serv
18566 864 240 7 Covad Communications
1239 858 2852 605 Sprint
209 640 3572 507 Qwest
20115 633 515 336 Charter Communications
3602 559 131 109 Sprint Canada, Inc.
19916 551 49 58 OLM LLC
22773 545 1348 27 Cox Communications, Inc.
3356 535 10639 411 Level 3 Communications, LLC
19262 493 1464 128 Verizon Global Networks
6198 485 577 209 BellSouth Network Solutions,
5668 484 147 23 CenturyTel Internet Holdings,
3561 477 2409 404 Savvis
7132 468 5060 399 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 606 1976 479 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 239 274 224 Romania Data Systems S.A.
3246 226 474 219 Song Networks
6746 196 51 168 Dynamic Network Technologies,
1257 190 712 168 SWIPnet Swedish IP Network
5515 183 841 129 Sonera Solution Autonomous Sy
3269 182 1734 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 173 317 143 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
8866 160 37 9 Bulgarian Telecommunication C
3300 157 169 91 AUCS Communications Services
25186 151 227 106 France Telecom Transpac's Tra
3215 142 1229 81 France Telecom Transpac
24863 141 37 6 LINKdotNET AS number
3352 137 1384 33 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 384 641 165 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 280 86 69 Servicios Alestra S.A de C.V
11664 198 22 13 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
6147 189 118 21 Telefonica Del Peru
14117 169 10 5 Telefonica del Sur S.A.
22047 169 128 7 VTR PUNTO NET S.A.
7303 149 69 15 Telecom Argentina Stet-France
11556 133 64 3 Cable-Wireless Panama
19169 122 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 117 52 9 Mega Cable S.A. de C.V.
18822 112 7 13 TELEFONICA MANQUEHUE
6503 109 148 76 AVANTEL, S.A.
21826 108 14 17 INTERCABLE
5639 107 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 88 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 227 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 120 44 7 TEDATA
2018 95 295 86 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 7 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
33774 32 3 22 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 19 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1187 956 Time Warner Telecom
18566 864 857 Covad Communications
9583 813 800 Sify Limited
4134 1006 795 CHINANET-BACKBONE
721 1080 767 DLA Systems Automation Center
4755 724 658 Videsh Sanchar Nigam Ltd. Aut
22773 545 518 Cox Communications, Inc.
19916 551 493 OLM LLC
5668 484 461 CenturyTel Internet Holdings,
6197 945 457 BellSouth Network Solutions,
3602 559 450 Sprint Canada, Inc.
7545 510 440 TPG Internet Pty Ltd
17676 470 370 Softbank BB Corp.
19262 493 365 Verizon Global Networks
6467 407 359 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
11492 347 336 Cable One
9498 388 330 BHARTI BT INTERNET LTD.
4766 619 329 Korea Telecom (KIX)
17488 334 325 Hathway IP Over Cable Interne
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
64900 PRIVATE 64.116.137.0/24 17399 Comsat Venezuela, CO
65002 PRIVATE 64.119.148.0/22 19406 Towerstream
65500 PRIVATE 64.146.64.0/24 19029 New Edge Networks
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
64643 PRIVATE 140.253.192.0/20 24434 James Cook Universit
65205 PRIVATE 152.163.5.0/24 2056 America Online
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.7.0/24 28477 Universidad Autonoma
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
65500 PRIVATE 216.217.188.0/24 19029 New Edge Networks
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
192.43.230.0/24 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 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 /8:17 /9:5 /10:8 /11:18 /12:80
/13:182 /14:335 /15:654 /16:8594 /17:2854 /18:4785
/19:10894 /20:11948 /21:9999 /22:13246 /23:14241 /24:93705
/25:324 /26:277 /27:176 /28:31 /29:10 /30:35
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 848 864 Covad Communications
6197 772 945 BellSouth Network Solutions,
7018 740 1511 AT&T WorldNet Services
2386 639 925 AT&T Data Communications Serv
9583 636 813 Sify Limited
4323 563 1187 Time Warner Telecom
19916 542 551 OLM LLC
4766 427 619 Korea Telecom (KIX)
5668 389 484 CenturyTel Internet Holdings,
702 383 606 UUNET - Commercial IP service
7011 383 443 Citizens Utilities
1239 366 858 Sprint
6198 350 485 BellSouth Network Solutions,
11492 339 347 Cable One
6517 322 348 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
13609 286 327 Choice One Communications Inc
701 284 1002 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
22773 278 545 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:26 12:1611 13:1 15:11 16:3
17:3 18:3 20:41 24:567 30:2 32:68
38:164 40:54 44:3 47:2 52:4 55:1
56:3 57:35 58:96 59:80 60:146 61:790
62:791 63:1884 64:2951 65:2110 66:2964 67:642
68:661 69:1270 70:218 71:32 72:411 80:652
81:574 82:504 83:308 84:291 85:361 86:140
87:64 125:15 128:147 129:168 130:97 131:296
132:36 133:1 134:148 135:40 136:159 137:68
138:166 139:68 140:465 141:141 142:148 143:142
144:218 145:34 146:301 147:131 148:272 149:187
150:107 151:68 152:112 153:93 154:6 155:142
156:78 157:105 158:162 159:174 160:87 161:76
162:237 163:143 164:190 165:190 166:154 167:252
168:437 169:144 170:301 171:11 190:1 192:5714
193:3313 194:2427 195:1562 196:669 198:3903 199:3248
200:4215 201:384 202:6203 203:6504 204:3822 205:2013
206:2451 207:2841 208:2025 209:3434 210:1693 211:828
212:1200 213:1360 214:319 215:42 216:3854 217:1131
218:222 219:133 220:508 221:293 222:131
End of report
