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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 31 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168857
Prefixes after maximum aggregation: 96980
Unique aggregates announced to Internet: 81700
Total ASes present in the Internet Routing Table: 20360
Origin-only ASes present in the Internet Routing Table: 17730
Origin ASes announcing only one prefix: 8387
Transit ASes present in the Internet Routing Table: 2630
Transit-only ASes present in the Internet Routing Table: 70
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: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1412699392
Equivalent to 84 /8s, 52 /16s and 21 /24s
Percentage of available address space announced: 38.1
Percentage of allocated address space announced: 57.4
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80202
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35006
Total APNIC prefixes after maximum aggregation: 15786
Prefixes being announced from the APNIC address blocks: 32870
Unique aggregates announced from the APNIC address blocks: 16467
APNIC Region origin ASes present in the Internet Routing Table: 2344
APNIC Region origin ASes announcing only one prefix: 693
APNIC Region transit ASes present in the Internet Routing Table: 353
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 195410176
Equivalent to 11 /8s, 165 /16s and 185 /24s
Percentage of available APNIC address space announced: 72.5
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: 90140
Total ARIN prefixes after maximum aggregation: 54938
Prefixes being announced from the ARIN address blocks: 70486
Unique aggregates announced from the ARIN address blocks: 25949
ARIN Region origin ASes present in the Internet Routing Table: 10150
ARIN Region origin ASes announcing only one prefix: 3744
ARIN Region transit ASes present in the Internet Routing Table: 944
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 262560000
Equivalent to 15 /8s, 166 /16s and 89 /24s
Percentage of available ARIN address space announced: 65.2
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: 32638
Total RIPE prefixes after maximum aggregation: 22282
Prefixes being announced from the RIPE address blocks: 29684
Unique aggregates announced from the RIPE address blocks: 20014
RIPE Region origin ASes present in the Internet Routing Table: 7035
RIPE Region origin ASes announcing only one prefix: 3713
RIPE Region transit ASes present in the Internet Routing Table: 1165
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 216526592
Equivalent to 12 /8s, 231 /16s and 239 /24s
Percentage of available RIPE address space announced: 64.5
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
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: 9346
Total LACNIC prefixes after maximum aggregation: 3177
Prefixes being announced from the LACNIC address blocks: 7709
Unique aggregates announced from the LACNIC address blocks: 4440
LACNIC Region origin ASes present in the Internet Routing Table: 634
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 117
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 21885184
Equivalent to 1 /8s, 77 /16s and 241 /24s
Percentage of available LACNIC address space announced: 32.6
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: 1704
Total AfriNIC prefixes after maximum aggregation: 797
Prefixes being announced from the AfriNIC address blocks: 1031
Unique aggregates announced from the AfriNIC address blocks: 788
AfriNIC Region origin ASes present in the Internet Routing Table: 134
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: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2647296
Equivalent to 0 /8s, 40 /16s and 101 /24s
Percentage of available AfriNIC address space announced: 7.9
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 960 5596 196 CHINANET-BACKBONE
9583 775 77 14 Sify Limited
1221 748 1325 519 Telstra Pty Ltd
4755 699 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 602 3927 285 Korea Telecom (KIX)
7545 518 108 73 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
9498 338 115 59 BHARTI BT INTERNET LTD.
2907 337 1788 314 SINET Japan
9929 334 224 46 China Netcom Corp.
17557 326 23 154 Pakistan Telecom
7474 317 257 220 SingTel Optus Pty Ltd
17488 314 18 7 Hathway IP Over Cable Interne
18302 301 109 157 SK Global co., Ltd
4802 297 53 158 Wantree Development
9837 275 79 177 Powertel Ltd
17974 265 65 14 PT TELEKOMUNIKASI INDONESIA
703 258 262 208 UUNET - Commercial IP service
9800 250 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1516 6375 982 AT&T WorldNet Services
4323 1157 704 221 Time Warner Telecom
174 1124 5853 1027 Cogent Communications
721 1074 21922 310 DLA Systems Automation Center
701 1002 8153 850 UUNET Technologies, Inc.
6197 947 503 446 BellSouth Network Solutions,
2386 888 511 660 AT&T Data Communications Serv
1239 867 2851 612 Sprint
18566 840 224 20 Covad Communications
209 623 3453 487 Qwest
20115 623 487 327 Charter Communications
3356 574 10661 445 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 553 125 106 Sprint Canada, Inc.
3561 541 2417 422 Savvis
22773 522 1352 27 Cox Communications, Inc.
5668 493 115 23 CenturyTel Internet Holdings,
6198 470 417 228 BellSouth Network Solutions,
7132 454 4947 388 SBC Internet Services
19262 450 1370 120 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 2000 484 UUNET - Commercial IP service
3301 298 1081 284 TeliaNet Sweden
3320 290 3232 239 Deutsche Telekom AG
8220 263 474 259 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 232 261 213 Romania Data Systems S.A.
3246 229 469 222 Song Networks
1257 201 712 175 SWIPnet Swedish IP Network
6746 182 50 158 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
9121 179 285 45 TTnet Autonomous System
786 174 1794 174 The JANET IP Service
3269 170 1526 67 TELECOM ITALIA
5400 167 289 141 BT Ignite European Backbone
8866 166 20 7 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 156 184 90 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
8551 139 120 20 Bezeq International
1273 137 174 96 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 394 650 165 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 243 87 58 Servicios Alestra S.A de C.V
6147 194 110 21 Telefonica Del Peru
11664 191 20 23 Keytech SA
19632 173 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 152 9 5 Telefonica del Sur S.A.
7303 143 68 15 Telecom Argentina Stet-France
11556 131 64 3 Cable-Wireless Panama
6505 123 90 87 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 120 8 26 Telconet
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
13999 107 52 9 Mega Cable S.A. de C.V.
5639 103 12 9 Telecommunications Services o
21826 103 13 15 INTERCABLE
23216 96 24 20 RAMtelecom Telecomunicaciones
22927 88 81 28 TELEFONICA DE ARGENTINA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 264 693 222 The Internet Solution
5536 121 8 14 Internet Egypt Network
8452 106 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 93 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 43 149 33 Telkom SA Ltd
9129 38 3 4 UUNET Kenya
12455 33 5 6 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 22 1 6 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
21280 22 4 5 Swift Global Kenya Ltd.Is an
10798 21 1 12 Standard Bank of South Africa
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1157 936 Time Warner Telecom
18566 840 820 Covad Communications
721 1074 764 DLA Systems Automation Center
4134 960 764 CHINANET-BACKBONE
9583 775 761 Sify Limited
4755 699 635 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 947 501 BellSouth Network Solutions,
22773 522 495 Cox Communications, Inc.
5668 493 470 CenturyTel Internet Holdings,
3602 553 447 Sprint Canada, Inc.
7545 518 445 TPG Internet Pty Ltd
17676 465 366 Softbank BB Corp.
6467 425 353 E.Spire Communications, Inc.
19262 450 330 Verizon Global Networks
4766 602 317 Korea Telecom (KIX)
11492 324 317 Cable One
9443 386 307 Primus Telecommunications
17488 314 307 Hathway IP Over Cable Interne
15270 332 305 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
65230 PRIVATE 86.104.116.0/24 34050 Fiber Net Communicat
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
64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt
64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /9:3 /10:8 /11:17 /12:77
/13:171 /14:320 /15:616 /16:8456 /17:2699 /18:4566
/19:10656 /20:11687 /21:9740 /22:13129 /23:14032 /24:91654
/25:329 /26:314 /27:175 /28:48 /29:28 /30:79
/31:1 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 825 840 Covad Communications
6197 770 947 BellSouth Network Solutions,
7018 721 1516 AT&T WorldNet Services
2386 599 888 AT&T Data Communications Serv
9583 597 775 Sify Limited
4323 554 1157 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 400 493 CenturyTel Internet Holdings,
702 366 593 UUNET - Commercial IP service
1239 365 867 Sprint
19916 364 370 OLM LLC
7011 346 401 Citizens Utilities
6198 343 470 BellSouth Network Solutions,
11492 316 324 Cable One
6517 303 329 Yipes Communications, Inc.
15270 302 332 PaeTec.net -a division of Pae
18302 286 301 SK Global co., Ltd
701 283 1002 UUNET Technologies, Inc.
11456 280 316 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 11:1 12:1571 13:1 15:9
16:2 17:3 18:3 20:22 24:1065 30:3
32:61 33:1 38:144 40:56 44:4 47:2
52:4 55:1 56:3 57:23 58:155 59:64
60:114 61:720 62:771 63:1891 64:2831 65:2065
66:2883 67:598 68:574 69:1160 70:169 71:12
72:346 80:602 81:533 82:464 83:301 84:226
85:297 86:93 87:9 128:142 129:168 130:94
131:292 132:37 133:1 134:144 135:42 136:150
137:64 138:165 139:61 140:400 141:105 142:144
143:135 144:201 145:34 146:292 147:111 148:298
149:182 150:107 151:59 152:108 153:88 154:5
155:143 156:80 157:97 158:167 159:167 160:85
161:72 162:222 163:113 164:188 165:194 166:153
167:247 168:437 169:142 170:317 171:8 190:1
192:5721 193:3271 194:2399 195:1579 196:656 198:3849
199:3278 200:4125 201:278 202:6061 203:6360 204:3771
205:2057 206:2452 207:2828 208:2035 209:3324 210:1660
211:788 212:1216 213:1355 214:287 215:35 216:3630
217:1119 218:216 219:136 220:441 221:255 222:123
End of report
