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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 02 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 169217
Prefixes after maximum aggregation: 97014
Unique aggregates announced to Internet: 81855
Total ASes present in the Internet Routing Table: 20378
Origin-only ASes present in the Internet Routing Table: 17747
Origin ASes announcing only one prefix: 8408
Transit ASes present in the Internet Routing Table: 2631
Transit-only ASes present in the Internet Routing Table: 69
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: 65
Number of addresses announced to Internet: 1415024384
Equivalent to 84 /8s, 87 /16s and 143 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 57.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80352
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35202
Total APNIC prefixes after maximum aggregation: 15816
Prefixes being announced from the APNIC address blocks: 33070
Unique aggregates announced from the APNIC address blocks: 16596
APNIC Region origin ASes present in the Internet Routing Table: 2346
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 352
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 196065536
Equivalent to 11 /8s, 175 /16s and 185 /24s
Percentage of available APNIC address space announced: 72.8
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: 90242
Total ARIN prefixes after maximum aggregation: 54945
Prefixes being announced from the ARIN address blocks: 70572
Unique aggregates announced from the ARIN address blocks: 25949
ARIN Region origin ASes present in the Internet Routing Table: 10157
ARIN Region origin ASes announcing only one prefix: 3754
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: 263702784
Equivalent to 15 /8s, 183 /16s and 201 /24s
Percentage of available ARIN address space announced: 65.5
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: 32676
Total RIPE prefixes after maximum aggregation: 22300
Prefixes being announced from the RIPE address blocks: 29716
Unique aggregates announced from the RIPE address blocks: 20037
RIPE Region origin ASes present in the Internet Routing Table: 7046
RIPE Region origin ASes announcing only one prefix: 3722
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: 216768768
Equivalent to 12 /8s, 235 /16s and 161 /24s
Percentage of available RIPE address space announced: 64.6
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: 9387
Total LACNIC prefixes after maximum aggregation: 3168
Prefixes being announced from the LACNIC address blocks: 7744
Unique aggregates announced from the LACNIC address blocks: 4450
LACNIC Region origin ASes present in the Internet Routing Table: 635
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 118
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 21900032
Equivalent to 1 /8s, 78 /16s and 43 /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: 1687
Total AfriNIC prefixes after maximum aggregation: 785
Prefixes being announced from the AfriNIC address blocks: 1031
Unique aggregates announced from the AfriNIC address blocks: 787
AfriNIC Region origin ASes present in the Internet Routing Table: 132
AfriNIC Region origin ASes announcing only one prefix: 39
AfriNIC Region transit ASes present in the Internet Routing Table: 17
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2647040
Equivalent to 0 /8s, 40 /16s and 100 /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 782 77 14 Sify Limited
1221 745 1327 516 Telstra Pty Ltd
4755 704 259 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 337 115 59 BHARTI BT INTERNET LTD.
2907 336 1788 313 SINET Japan
9929 334 224 46 China Netcom Corp.
17557 326 23 153 Pakistan Telecom
17488 319 19 8 Hathway IP Over Cable Interne
7474 317 257 220 SingTel Optus Pty Ltd
4802 298 53 159 Wantree Development
18302 297 109 159 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 265 65 14 PT TELEKOMUNIKASI INDONESIA
703 252 262 205 UUNET - Commercial IP service
9800 245 388 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1513 6359 979 AT&T WorldNet Services
4323 1160 704 223 Time Warner Telecom
174 1116 5852 1020 Cogent Communications
721 1077 21922 310 DLA Systems Automation Center
701 1003 8152 849 UUNET Technologies, Inc.
6197 947 503 446 BellSouth Network Solutions,
2386 895 512 668 AT&T Data Communications Serv
1239 864 2850 611 Sprint
18566 840 224 20 Covad Communications
209 624 3454 488 Qwest
20115 622 487 327 Charter Communications
3356 572 10661 444 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 552 125 106 Sprint Canada, Inc.
3561 541 2417 422 Savvis
22773 502 1352 27 Cox Communications, Inc.
5668 498 115 23 CenturyTel Internet Holdings,
6198 472 417 228 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
702 590 2000 481 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 234 262 214 Romania Data Systems S.A.
3246 229 469 222 Song Networks
1257 201 712 175 SWIPnet Swedish IP Network
9121 185 287 37 TTnet Autonomous System
6746 182 50 158 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
786 174 1794 174 The JANET IP Service
3269 172 1558 68 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 155 184 90 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
8551 138 120 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 397 650 168 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 241 83 57 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 153 9 5 Telefonica del Sur S.A.
7303 143 68 15 Telecom Argentina Stet-France
11556 129 64 2 Cable-Wireless Panama
6505 122 89 86 Global One Communicaoes Ltda
19169 121 8 25 Telconet
10481 120 48 8 Prima S.A.
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
13999 109 52 9 Mega Cable S.A. de C.V.
5639 103 12 9 Telecommunications Services o
21826 103 13 15 INTERCABLE
11311 97 8 14 Sinectis S.A.
23216 95 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 263 692 221 The Internet Solution
5536 121 8 14 Internet Egypt Network
8452 103 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 88 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
12455 50 6 4 Jambonet Autonomous system
5713 43 149 33 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
9129 27 3 4 UUNET Kenya
8524 23 1 3 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 21 1 12 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
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 1160 937 Time Warner Telecom
18566 840 820 Covad Communications
9583 782 768 Sify Limited
721 1077 767 DLA Systems Automation Center
4134 960 764 CHINANET-BACKBONE
4755 704 640 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 947 501 BellSouth Network Solutions,
22773 502 475 Cox Communications, Inc.
5668 498 475 CenturyTel Internet Holdings,
3602 552 446 Sprint Canada, Inc.
7545 518 445 TPG Internet Pty Ltd
17676 465 366 Softbank BB Corp.
6467 425 352 E.Spire Communications, Inc.
19262 450 330 Verizon Global Networks
11492 325 318 Cable One
4766 602 317 Korea Telecom (KIX)
17488 319 311 Hathway IP Over Cable Interne
9443 386 307 Primus Telecommunications
15270 333 306 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
192.96.1.0/24 3741 The Internet Solution
192.96.2.0/24 2018 Tertiary Education Network
192.96.3.0/24 3741 The Internet Solution
192.96.5.0/24 2018 Tertiary Education Network
192.96.7.0/24 2018 Tertiary Education Network
192.96.8.0/24 2018 Tertiary Education Network
192.96.10.0/24 5713 Telkom SA Ltd
192.96.11.0/24 2018 Tertiary Education Network
192.96.12.0/24 2018 Tertiary Education Network
192.96.13.0/24 16637 Johnnic e-Ventures
192.96.14.0/24 16637 Johnnic e-Ventures
192.96.15.0/24 2018 Tertiary Education Network
192.96.20.0/23 2018 Tertiary Education Network
192.96.22.0/24 7460 LIA Internet Access
192.96.25.0/24 6083 Olivetti Africa
192.96.32.0/24 2905 The Internetworking Company o
192.96.34.0/24 10474 NetActive ISP
192.96.36.0/24 5713 Telkom SA Ltd
192.96.37.0/24 10474 NetActive ISP
192.96.38.0/24 3741 The Internet Solution
192.96.43.0/24 5713 Telkom SA Ltd
192.96.46.0/24 3741 The Internet Solution
192.96.51.0/24 5713 Telkom SA Ltd
192.96.57.0/24 3741 The Internet Solution
192.96.58.0/24 16416 Mycomax
192.96.87.0/24 2905 The Internetworking Company o
192.96.88.0/24 2905 The Internetworking Company o
192.96.89.0/24 3741 The Internet Solution
192.96.90.0/23 3741 The Internet Solution
192.96.92.0/24 3741 The Internet Solution
192.96.94.0/23 3741 The Internet Solution
192.96.96.0/24 2905 The Internetworking Company o
192.96.97.0/24 2905 The Internetworking Company o
192.96.98.0/23 2905 The Internetworking Company o
192.96.109.0/24 2018 Tertiary Education Network
192.96.120.0/21 3741 The Internet Solution
192.96.128.0/22 3741 The Internet Solution
192.96.132.0/24 3741 The Internet Solution
192.96.133.0/24 3741 The Internet Solution
192.96.134.0/24 3741 The Internet Solution
192.96.139.0/24 3741 The Internet Solution
192.96.140.0/24 2018 Tertiary Education Network
192.96.142.0/24 2018 Tertiary Education Network
192.96.147.0/24 2905 The Internetworking Company o
192.96.150.0/24 3741 The Internet Solution
192.96.177.0/24 6083 Olivetti Africa
192.96.193.0/24 3741 The Internet Solution
192.96.194.0/24 3741 The Internet Solution
192.96.247.0/24 2018 Tertiary Education Network
192.96.248.0/23 2018 Tertiary Education Network
192.96.250.0/24 2018 Tertiary Education Network
192.96.251.0/24 3741 The Internet Solution
192.96.252.0/24 2018 Tertiary Education Network
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 /15:624 /16:8473 /17:2695 /18:4614
/19:10689 /20:11708 /21:9760 /22:13174 /23:14036 /24:91863
/25:325 /26:311 /27:174 /28:46 /29:21 /30:61
/31:1 /32:29
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 1513 AT&T WorldNet Services
2386 607 895 AT&T Data Communications Serv
9583 602 782 Sify Limited
4323 554 1160 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 498 CenturyTel Internet Holdings,
1239 364 864 Sprint
19916 364 370 OLM LLC
702 363 590 UUNET - Commercial IP service
7011 348 403 Citizens Utilities
6198 345 472 BellSouth Network Solutions,
11492 317 325 Cable One
15270 303 333 PaeTec.net -a division of Pae
6517 302 328 Yipes Communications, Inc.
701 284 1003 UUNET Technologies, Inc.
18302 282 297 SK Global co., Ltd
6467 279 425 E.Spire Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:23 11:1 12:1578 13:1 15:9
16:2 17:3 18:3 20:22 24:1066 30:3
32:61 33:1 38:145 40:56 44:4 47:2
52:4 55:1 56:3 57:23 58:155 59:65
60:119 61:718 62:758 63:1886 64:2832 65:2067
66:2888 67:598 68:576 69:1164 70:173 71:11
72:351 80:611 81:531 82:452 83:302 84:228
85:300 86:93 87:9 128:141 129:168 130:97
131:292 132:37 133:1 134:144 135:42 136:151
137:65 138:165 139:61 140:394 141:105 142:145
143:136 144:212 145:34 146:290 147:116 148:298
149:181 150:107 151:61 152:108 153:92 154:5
155:142 156:80 157:95 158:162 159:169 160:85
161:73 162:223 163:111 164:188 165:195 166:154
167:247 168:438 169:142 170:317 171:8 190:1
192:5719 193:3276 194:2403 195:1570 196:654 198:3849
199:3283 200:4148 201:282 202:6067 203:6360 204:3771
205:2085 206:2459 207:2827 208:2031 209:3361 210:1691
211:811 212:1213 213:1353 214:289 215:36 216:3647
217:1118 218:216 219:137 220:443 221:258 222:124
End of report
