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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 07 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171100
Prefixes after maximum aggregation: 97646
Unique aggregates announced to Internet: 82815
Total ASes present in the Internet Routing Table: 20634
Origin-only ASes present in the Internet Routing Table: 17938
Origin ASes announcing only one prefix: 8509
Transit ASes present in the Internet Routing Table: 2696
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: 25
Prefixes from unregistered ASNs in the Routing Table: 21
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1429357696
Equivalent to 85 /8s, 50 /16s and 68 /24s
Percentage of available address space announced: 38.6
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81454
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35500
Total APNIC prefixes after maximum aggregation: 15667
Prefixes being announced from the APNIC address blocks: 33336
Unique aggregates announced from the APNIC address blocks: 16588
APNIC Region origin ASes present in the Internet Routing Table: 2374
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 201961856
Equivalent to 12 /8s, 9 /16s and 177 /24s
Percentage of available APNIC address space announced: 74.9
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: 90971
Total ARIN prefixes after maximum aggregation: 55345
Prefixes being announced from the ARIN address blocks: 71071
Unique aggregates announced from the ARIN address blocks: 26358
ARIN Region origin ASes present in the Internet Routing Table: 10245
ARIN Region origin ASes announcing only one prefix: 3782
ARIN Region transit ASes present in the Internet Routing Table: 961
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 271468032
Equivalent to 16 /8s, 46 /16s and 70 /24s
Percentage of available ARIN address space announced: 67.4
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: 33176
Total RIPE prefixes after maximum aggregation: 22593
Prefixes being announced from the RIPE address blocks: 30187
Unique aggregates announced from the RIPE address blocks: 20249
RIPE Region origin ASes present in the Internet Routing Table: 7170
RIPE Region origin ASes announcing only one prefix: 3783
RIPE Region transit ASes present in the Internet Routing Table: 1194
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 219570752
Equivalent to 13 /8s, 22 /16s and 98 /24s
Percentage of available RIPE address space announced: 65.4
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: 9651
Total LACNIC prefixes after maximum aggregation: 3219
Prefixes being announced from the LACNIC address blocks: 7992
Unique aggregates announced from the LACNIC address blocks: 4654
LACNIC Region origin ASes present in the Internet Routing Table: 641
LACNIC Region origin ASes announcing only one prefix: 203
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: 25
Number of LACNIC addresses announced to Internet: 22130944
Equivalent to 1 /8s, 81 /16s and 177 /24s
Percentage of available LACNIC address space announced: 33.0
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: 1776
Total AfriNIC prefixes after maximum aggregation: 822
Prefixes being announced from the AfriNIC address blocks: 1087
Unique aggregates announced from the AfriNIC address blocks: 810
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2822912
Equivalent to 0 /8s, 43 /16s and 19 /24s
Percentage of available AfriNIC address space announced: 8.4
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 992 6172 209 CHINANET-BACKBONE
9583 803 77 12 Sify Limited
1221 758 1330 519 Telstra Pty Ltd
4755 714 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 611 3927 290 Korea Telecom (KIX)
7545 513 108 72 TPG Internet Pty Ltd
17676 469 6803 99 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 344 165 60 BHARTI BT INTERNET LTD.
2907 338 1763 315 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
17557 328 23 160 Pakistan Telecom
4802 319 70 160 Wantree Development
7474 315 257 217 SingTel Optus Pty Ltd
18302 287 109 169 SK Global co., Ltd
9837 273 79 174 Powertel Ltd
17974 272 65 14 PT TELEKOMUNIKASI INDONESIA
18101 260 68 18 Reliance Infocom Ltd Internet
9800 253 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1513 6360 986 AT&T WorldNet Services
4323 1178 705 228 Time Warner Telecom
721 1075 21938 309 DLA Systems Automation Center
174 1064 5849 997 Cogent Communications
701 997 8121 837 UUNET Technologies, Inc.
6197 945 399 488 BellSouth Network Solutions,
2386 925 513 686 AT&T Data Communications Serv
18566 858 240 7 Covad Communications
1239 857 2851 602 Sprint
209 632 3569 499 Qwest
20115 623 509 327 Charter Communications
3602 561 131 109 Sprint Canada, Inc.
3356 547 10656 421 Level 3 Communications, LLC
22773 545 1352 30 Cox Communications, Inc.
3561 538 2409 418 Savvis
6198 476 417 230 BellSouth Network Solutions,
5668 475 123 24 CenturyTel Internet Holdings,
19262 470 1416 121 Verizon Global Networks
7132 468 5042 399 SBC Internet Services
852 436 1092 383 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 1993 482 UUNET - Commercial IP service
3301 303 1081 289 TeliaNet Sweden
3320 285 3230 238 Deutsche Telekom AG
8220 268 475 263 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 241 266 220 Romania Data Systems S.A.
3246 226 474 219 Song Networks
1257 194 712 172 SWIPnet Swedish IP Network
6746 189 50 164 Dynamic Network Technologies,
5515 180 777 126 Sonera Solution Autonomous Sy
3269 178 1638 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 160 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 152 227 107 France Telecom Transpac's Tra
3215 140 1205 82 France Telecom Transpac
24863 138 37 6 LINKdotNET AS number
1273 137 177 95 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 394 650 167 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 278 85 65 Servicios Alestra S.A de C.V
11664 209 22 24 Keytech SA
19632 195 14 5 Metropolis Intercom S.A.
6147 190 116 23 Telefonica Del Peru
22047 170 128 7 VTR PUNTO NET S.A.
14117 155 10 5 Telefonica del Sur S.A.
7303 145 68 17 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
19169 121 8 25 Telconet
13999 118 52 9 Mega Cable S.A. de C.V.
6503 113 148 74 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 107 13 16 INTERCABLE
5639 103 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 268 708 226 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 115 40 8 TEDATA
2018 95 295 86 Tertiary Education Network
15475 83 84 4 Nile Online
2905 79 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
5713 38 149 33 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 3 19 AS Number for Telecom Algeria
8524 24 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 21 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 1178 950 Time Warner Telecom
18566 858 851 Covad Communications
9583 803 791 Sify Limited
4134 992 783 CHINANET-BACKBONE
721 1075 766 DLA Systems Automation Center
4755 714 648 Videsh Sanchar Nigam Ltd. Aut
22773 545 515 Cox Communications, Inc.
6197 945 457 BellSouth Network Solutions,
3602 561 452 Sprint Canada, Inc.
5668 475 451 CenturyTel Internet Holdings,
7545 513 441 TPG Internet Pty Ltd
17676 469 370 Softbank BB Corp.
6467 401 353 E.Spire Communications, Inc.
19262 470 349 Verizon Global Networks
11492 341 332 Cable One
17488 336 327 Hathway IP Over Cable Interne
4766 611 321 Korea Telecom (KIX)
15270 346 318 PaeTec.net -a division of Pae
9443 392 314 Primus Telecommunications
13609 333 302 Choice One Communications Inc
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
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
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
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 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
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 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 /8:17 /9:5 /10:8 /11:17 /12:80
/13:179 /14:327 /15:641 /16:8521 /17:2818 /18:4722
/19:10805 /20:11862 /21:9851 /22:13223 /23:14232 /24:92896
/25:323 /26:280 /27:176 /28:36 /29:11 /30:36
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 842 858 Covad Communications
6197 772 945 BellSouth Network Solutions,
7018 735 1513 AT&T WorldNet Services
2386 637 925 AT&T Data Communications Serv
9583 626 803 Sify Limited
4323 561 1178 Time Warner Telecom
4766 426 611 Korea Telecom (KIX)
702 385 609 UUNET - Commercial IP service
5668 382 475 CenturyTel Internet Holdings,
1239 367 857 Sprint
7011 366 425 Citizens Utilities
19916 363 369 OLM LLC
6198 349 476 BellSouth Network Solutions,
11492 333 341 Cable One
6517 317 343 Yipes Communications, Inc.
15270 316 346 PaeTec.net -a division of Pae
13609 290 333 Choice One Communications Inc
701 284 997 UUNET Technologies, Inc.
22773 276 545 Cox Communications, Inc.
18302 272 287 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:24 12:1601 13:1 15:10 16:3
17:3 18:3 20:27 24:560 30:3 32:67
38:170 40:54 44:3 47:2 52:4 55:1
56:3 57:39 58:93 59:69 60:139 61:748
62:759 63:1888 64:2900 65:2082 66:2961 67:636
68:655 69:1238 70:202 71:27 72:395 80:636
81:580 82:490 83:303 84:272 85:336 86:129
87:58 125:10 128:161 129:168 130:95 131:295
132:34 133:1 134:145 135:43 136:160 137:66
138:163 139:62 140:463 141:141 142:143 143:139
144:211 145:34 146:301 147:112 148:277 149:187
150:107 151:73 152:113 153:93 154:5 155:139
156:80 157:112 158:162 159:172 160:87 161:76
162:236 163:148 164:191 165:175 166:152 167:249
168:441 169:143 170:310 171:8 190:1 192:5726
193:3311 194:2414 195:1561 196:678 198:3885 199:3235
200:4209 201:348 202:6115 203:6443 204:3817 205:2044
206:2440 207:2854 208:2034 209:3411 210:1681 211:817
212:1208 213:1355 214:303 215:39 216:3706 217:1135
218:220 219:131 220:504 221:286 222:125
End of report
