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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 22 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170657
Prefixes after maximum aggregation: 97312
Unique aggregates announced to Internet: 82505
Total ASes present in the Internet Routing Table: 20558
Origin-only ASes present in the Internet Routing Table: 17888
Origin ASes announcing only one prefix: 8475
Transit ASes present in the Internet Routing Table: 2670
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: 26
Prefixes from unregistered ASNs in the Routing Table: 20
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1425249344
Equivalent to 84 /8s, 243 /16s and 148 /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: 81379
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35432
Total APNIC prefixes after maximum aggregation: 15606
Prefixes being announced from the APNIC address blocks: 33287
Unique aggregates announced from the APNIC address blocks: 16480
APNIC Region origin ASes present in the Internet Routing Table: 2366
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 200202240
Equivalent to 11 /8s, 238 /16s and 216 /24s
Percentage of available APNIC address space announced: 74.3
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: 90935
Total ARIN prefixes after maximum aggregation: 55219
Prefixes being announced from the ARIN address blocks: 71065
Unique aggregates announced from the ARIN address blocks: 26226
ARIN Region origin ASes present in the Internet Routing Table: 10237
ARIN Region origin ASes announcing only one prefix: 3782
ARIN Region transit ASes present in the Internet Routing Table: 954
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 268238336
Equivalent to 15 /8s, 252 /16s and 254 /24s
Percentage of available ARIN address space announced: 66.6
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: 33033
Total RIPE prefixes after maximum aggregation: 22474
Prefixes being announced from the RIPE address blocks: 30064
Unique aggregates announced from the RIPE address blocks: 20279
RIPE Region origin ASes present in the Internet Routing Table: 7119
RIPE Region origin ASes announcing only one prefix: 3762
RIPE Region transit ASes present in the Internet Routing Table: 1179
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 218185856
Equivalent to 13 /8s, 1 /16s and 64 /24s
Percentage of available RIPE address space announced: 65.0
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: 9527
Total LACNIC prefixes after maximum aggregation: 3203
Prefixes being announced from the LACNIC address blocks: 7880
Unique aggregates announced from the LACNIC address blocks: 4595
LACNIC Region origin ASes present in the Internet Routing Table: 634
LACNIC Region origin ASes announcing only one prefix: 196
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22022400
Equivalent to 1 /8s, 80 /16s and 9 /24s
Percentage of available LACNIC address space announced: 32.8
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: 1706
Total AfriNIC prefixes after maximum aggregation: 810
Prefixes being announced from the AfriNIC address blocks: 1057
Unique aggregates announced from the AfriNIC address blocks: 799
AfriNIC Region origin ASes present in the Internet Routing Table: 138
AfriNIC Region origin ASes announcing only one prefix: 40
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: 2711552
Equivalent to 0 /8s, 41 /16s and 96 /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 983 6076 202 CHINANET-BACKBONE
9583 794 77 12 Sify Limited
1221 748 1328 515 Telstra Pty Ltd
4755 719 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 610 3927 289 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 468 6787 101 Softbank BB Corp.
9443 386 84 77 Primus Telecommunications
9498 339 147 60 BHARTI BT INTERNET LTD.
2907 336 1757 313 SINET Japan
9929 335 224 46 China Netcom Corp.
17557 330 23 158 Pakistan Telecom
17488 320 19 8 Hathway IP Over Cable Interne
7474 313 257 216 SingTel Optus Pty Ltd
4802 305 63 153 Wantree Development
18302 294 109 154 SK Global co., Ltd
9837 273 79 174 Powertel Ltd
17974 270 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 263 206 UUNET - Commercial IP service
9800 252 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1507 6359 986 AT&T WorldNet Services
4323 1172 705 228 Time Warner Telecom
174 1070 5850 1002 Cogent Communications
721 1053 21919 313 DLA Systems Automation Center
701 993 8120 838 UUNET Technologies, Inc.
6197 942 389 479 BellSouth Network Solutions,
2386 920 515 683 AT&T Data Communications Serv
1239 866 2852 609 Sprint
18566 852 227 21 Covad Communications
20115 647 507 329 Charter Communications
209 628 3457 494 Qwest
3356 575 10643 442 Level 3 Communications, LLC
3602 557 131 110 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 540 2409 420 Savvis
22773 534 1352 28 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 460 4950 393 SBC Internet Services
19262 454 1375 122 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 608 1994 480 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 291 3230 242 Deutsche Telekom AG
8220 266 474 261 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 237 262 217 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 208 295 42 TTnet Autonomous System
1257 195 712 173 SWIPnet Swedish IP Network
5515 185 778 127 Sonera Solution Autonomous Sy
6746 185 50 161 Dynamic Network Technologies,
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 165 37 9 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
24863 138 37 6 LINKdotNET AS number
3215 137 1181 79 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 650 168 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 248 83 60 Servicios Alestra S.A de C.V
6147 191 118 21 Telefonica Del Peru
11664 190 20 24 Keytech SA
19632 183 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
14117 153 10 5 Telefonica del Sur S.A.
7303 148 70 13 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 120 8 28 Telconet
13999 115 52 9 Mega Cable S.A. de C.V.
6503 114 148 75 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 96 24 19 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
2018 96 295 87 Tertiary Education Network
15475 83 84 4 Nile Online
8452 79 32 6 TEDATA
2905 74 210 66 The Internetworking Company o
20928 60 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 34 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 4 20 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 22 4 5 Swift Global Kenya Ltd.Is an
21491 18 17 2 UTL On-line is RF broadband I
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1172 944 Time Warner Telecom
18566 852 831 Covad Communications
9583 794 782 Sify Limited
4134 983 781 CHINANET-BACKBONE
721 1053 740 DLA Systems Automation Center
4755 719 653 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 534 506 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 942 463 BellSouth Network Solutions,
3602 557 447 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 468 367 Softbank BB Corp.
6467 398 349 E.Spire Communications, Inc.
19262 454 332 Verizon Global Networks
11492 336 328 Cable One
4766 610 321 Korea Telecom (KIX)
20115 647 318 Charter Communications
17488 320 312 Hathway IP Over Cable Interne
15270 337 310 PaeTec.net -a division of Pae
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
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
65205 PRIVATE 152.163.5.0/24 2056 America Online
65111 PRIVATE 194.165.131.0/24 8697 Jordan Telecommunica
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 211.158.36.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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
/13:176 /14:323 /15:627 /16:8540 /17:2762 /18:4687
/19:10763 /20:11802 /21:9857 /22:13239 /23:14130 /24:92710
/25:323 /26:266 /27:170 /28:46 /29:14 /30:61
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 837 852 Covad Communications
6197 771 942 BellSouth Network Solutions,
7018 717 1507 AT&T WorldNet Services
2386 632 920 AT&T Data Communications Serv
9583 620 794 Sify Limited
4323 561 1172 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 427 610 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 385 608 UUNET - Commercial IP service
7011 369 427 Citizens Utilities
1239 368 866 Sprint
19916 363 369 OLM LLC
6198 345 472 BellSouth Network Solutions,
11492 328 336 Cable One
6517 310 336 Yipes Communications, Inc.
15270 307 337 PaeTec.net -a division of Pae
701 286 993 UUNET Technologies, Inc.
18302 279 294 SK Global co., Ltd
20115 271 647 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1597 13:1 15:10 16:2
17:3 18:3 20:27 24:1079 30:3 32:65
38:155 40:54 44:4 47:2 52:4 55:1
56:3 57:23 58:156 59:69 60:122 61:744
62:762 63:1894 64:2869 65:2079 66:2913 67:615
68:613 69:1219 70:187 71:17 72:393 80:611
81:523 82:472 83:305 84:247 85:334 86:118
87:16 125:8 128:158 129:167 130:96 131:293
132:36 133:1 134:145 135:43 136:151 137:66
138:165 139:61 140:429 141:105 142:145 143:140
144:218 145:34 146:297 147:118 148:301 149:181
150:108 151:72 152:113 153:89 154:5 155:137
156:80 157:118 158:164 159:171 160:85 161:74
162:231 163:132 164:181 165:187 166:154 167:252
168:436 169:142 170:315 171:8 190:1 192:5688
193:3303 194:2419 195:1561 196:678 198:3875 199:3264
200:4179 201:328 202:6108 203:6411 204:3791 205:2021
206:2444 207:2777 208:2038 209:3388 210:1665 211:822
212:1211 213:1368 214:299 215:36 216:3694 217:1139
218:220 219:138 220:485 221:278 222:126
End of report
