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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 29 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170834
Prefixes after maximum aggregation: 97528
Unique aggregates announced to Internet: 82457
Total ASes present in the Internet Routing Table: 20605
Origin-only ASes present in the Internet Routing Table: 17918
Origin ASes announcing only one prefix: 8500
Transit ASes present in the Internet Routing Table: 2687
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Prefixes from unregistered ASNs in the Routing Table: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1426384640
Equivalent to 85 /8s, 4 /16s and 231 /24s
Percentage of available address space announced: 38.5
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81271
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35614
Total APNIC prefixes after maximum aggregation: 15663
Prefixes being announced from the APNIC address blocks: 33451
Unique aggregates announced from the APNIC address blocks: 16490
APNIC Region origin ASes present in the Internet Routing Table: 2372
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 366
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 200513024
Equivalent to 11 /8s, 243 /16s and 150 /24s
Percentage of available APNIC address space announced: 74.4
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: 90809
Total ARIN prefixes after maximum aggregation: 55321
Prefixes being announced from the ARIN address blocks: 70877
Unique aggregates announced from the ARIN address blocks: 26241
ARIN Region origin ASes present in the Internet Routing Table: 10240
ARIN Region origin ASes announcing only one prefix: 3781
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 270220288
Equivalent to 16 /8s, 27 /16s and 60 /24s
Percentage of available ARIN address space announced: 67.1
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: 33101
Total RIPE prefixes after maximum aggregation: 22513
Prefixes being announced from the RIPE address blocks: 30147
Unique aggregates announced from the RIPE address blocks: 20160
RIPE Region origin ASes present in the Internet Routing Table: 7151
RIPE Region origin ASes announcing only one prefix: 3780
RIPE Region transit ASes present in the Internet Routing Table: 1192
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 218737728
Equivalent to 13 /8s, 9 /16s and 172 /24s
Percentage of available RIPE address space announced: 65.2
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: 9552
Total LACNIC prefixes after maximum aggregation: 3218
Prefixes being announced from the LACNIC address blocks: 7890
Unique aggregates announced from the LACNIC address blocks: 4609
LACNIC Region origin ASes present in the Internet Routing Table: 638
LACNIC Region origin ASes announcing only one prefix: 199
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: 22075136
Equivalent to 1 /8s, 80 /16s and 215 /24s
Percentage of available LACNIC address space announced: 32.9
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: 1736
Total AfriNIC prefixes after maximum aggregation: 813
Prefixes being announced from the AfriNIC address blocks: 1056
Unique aggregates announced from the AfriNIC address blocks: 805
AfriNIC Region origin ASes present in the Internet Routing Table: 139
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2734592
Equivalent to 0 /8s, 41 /16s and 186 /24s
Percentage of available AfriNIC address space announced: 8.1
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 987 6103 205 CHINANET-BACKBONE
9583 798 77 12 Sify Limited
1221 752 1330 517 Telstra Pty Ltd
4755 722 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 611 3927 289 Korea Telecom (KIX)
7545 493 108 70 TPG Internet Pty Ltd
17676 469 6803 99 Softbank BB Corp.
9443 389 85 78 Primus Telecommunications
2907 336 1757 313 SINET Japan
9498 336 148 59 BHARTI BT INTERNET LTD.
17488 336 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
17557 328 23 158 Pakistan Telecom
7474 312 257 215 SingTel Optus Pty Ltd
17974 299 66 13 PT TELEKOMUNIKASI INDONESIA
18302 294 109 156 SK Global co., Ltd
4802 291 66 155 Wantree Development
9837 273 79 174 Powertel Ltd
703 254 263 207 UUNET - Commercial IP service
9800 253 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6344 982 AT&T WorldNet Services
4323 1176 705 228 Time Warner Telecom
721 1090 21922 308 DLA Systems Automation Center
174 1070 5850 1003 Cogent Communications
701 993 8121 836 UUNET Technologies, Inc.
6197 947 399 486 BellSouth Network Solutions,
2386 923 513 685 AT&T Data Communications Serv
1239 861 2851 605 Sprint
18566 855 240 7 Covad Communications
20115 653 510 327 Charter Communications
209 632 3585 497 Qwest
3356 573 10658 443 Level 3 Communications, LLC
3602 553 131 107 Sprint Canada, Inc.
22773 541 1352 30 Cox Communications, Inc.
3561 538 2409 418 Savvis
5668 490 115 23 CenturyTel Internet Holdings,
6198 474 417 228 BellSouth Network Solutions,
7132 463 4949 395 SBC Internet Services
19262 463 1400 119 Verizon Global Networks
852 437 1092 384 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 1995 481 UUNET - Commercial IP service
3301 301 1081 287 TeliaNet Sweden
3320 287 3230 238 Deutsche Telekom AG
8220 267 475 262 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 239 262 218 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 229 336 26 TTnet Autonomous System
1257 194 712 172 SWIPnet Swedish IP Network
6746 186 50 161 Dynamic Network Technologies,
5515 185 778 127 Sonera Solution Autonomous Sy
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 168 289 141 BT Ignite European Backbone
8866 164 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
3215 138 1189 80 France Telecom Transpac
24863 138 37 6 LINKdotNET AS number
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 400 649 170 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 249 83 61 Servicios Alestra S.A de C.V
11664 204 22 24 Keytech SA
6147 190 116 23 Telefonica Del Peru
19632 183 14 5 Metropolis Intercom S.A.
22047 168 128 7 VTR PUNTO NET S.A.
14117 157 10 5 Telefonica del Sur S.A.
7303 146 69 15 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 115 52 9 Mega Cable S.A. de C.V.
6503 113 148 74 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 105 13 16 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 95 23 18 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 708 223 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 108 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 84 84 4 Nile Online
2905 79 211 71 The Internetworking Company o
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
12455 36 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 20 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 1176 948 Time Warner Telecom
18566 855 848 Covad Communications
9583 798 786 Sify Limited
721 1090 782 DLA Systems Automation Center
4134 987 782 CHINANET-BACKBONE
4755 722 656 Videsh Sanchar Nigam Ltd. Aut
22773 541 511 Cox Communications, Inc.
5668 490 467 CenturyTel Internet Holdings,
6197 947 461 BellSouth Network Solutions,
3602 553 446 Sprint Canada, Inc.
7545 493 423 TPG Internet Pty Ltd
17676 469 370 Softbank BB Corp.
19262 463 344 Verizon Global Networks
6467 392 343 E.Spire Communications, Inc.
11492 339 330 Cable One
17488 336 327 Hathway IP Over Cable Interne
20115 653 326 Charter Communications
4766 611 322 Korea Telecom (KIX)
15270 343 315 PaeTec.net -a division of Pae
9443 389 311 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
65430 PRIVATE 196.44.128.0/19 20459 Telecom Namibia
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
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
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
/13:177 /14:326 /15:631 /16:8524 /17:2814 /18:4714
/19:10804 /20:11861 /21:9890 /22:13276 /23:14187 /24:92532
/25:333 /26:298 /27:188 /28:44 /29:13 /30:61
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 839 855 Covad Communications
6197 774 947 BellSouth Network Solutions,
7018 716 1498 AT&T WorldNet Services
2386 634 923 AT&T Data Communications Serv
9583 623 798 Sify Limited
4323 561 1176 Time Warner Telecom
4766 427 611 Korea Telecom (KIX)
5668 398 490 CenturyTel Internet Holdings,
702 384 609 UUNET - Commercial IP service
1239 367 861 Sprint
7011 364 422 Citizens Utilities
19916 363 369 OLM LLC
6198 347 474 BellSouth Network Solutions,
11492 331 339 Cable One
15270 313 343 PaeTec.net -a division of Pae
6517 312 338 Yipes Communications, Inc.
13609 290 332 Choice One Communications Inc
701 285 993 UUNET Technologies, Inc.
18302 279 294 SK Global co., Ltd
20115 276 653 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1593 13:1 15:10 16:2
17:3 18:3 20:27 24:562 30:3 32:65
38:156 40:54 44:3 47:2 52:4 55:1
56:3 57:23 58:157 59:69 60:140 61:759
62:763 63:1888 64:2872 65:2076 66:2938 67:632
68:626 69:1236 70:195 71:18 72:392 80:628
81:546 82:475 83:308 84:253 85:332 86:122
87:19 125:9 128:153 129:167 130:96 131:296
132:36 133:1 134:145 135:43 136:151 137:66
138:164 139:63 140:430 141:137 142:150 143:141
144:218 145:34 146:298 147:112 148:304 149:184
150:109 151:72 152:113 153:93 154:5 155:140
156:80 157:112 158:164 159:171 160:85 161:75
162:235 163:133 164:191 165:188 166:152 167:251
168:441 169:142 170:316 171:8 190:1 192:5715
193:3312 194:2410 195:1554 196:672 198:3877 199:3240
200:4163 201:332 202:6099 203:6440 204:3812 205:2055
206:2443 207:2808 208:2034 209:3396 210:1664 211:816
212:1186 213:1365 214:303 215:42 216:3733 217:1136
218:221 219:134 220:493 221:285 222:129
End of report
