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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 30 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168877
Prefixes after maximum aggregation: 96936
Unique aggregates announced to Internet: 81596
Total ASes present in the Internet Routing Table: 20369
Origin-only ASes present in the Internet Routing Table: 17735
Origin ASes announcing only one prefix: 8392
Transit ASes present in the Internet Routing Table: 2634
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: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1412731392
Equivalent to 84 /8s, 52 /16s and 146 /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: 80172
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35034
Total APNIC prefixes after maximum aggregation: 15801
Prefixes being announced from the APNIC address blocks: 32900
Unique aggregates announced from the APNIC address blocks: 16473
APNIC Region origin ASes present in the Internet Routing Table: 2347
APNIC Region origin ASes announcing only one prefix: 695
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: 195881216
Equivalent to 11 /8s, 172 /16s and 233 /24s
Percentage of available APNIC address space announced: 72.7
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: 90086
Total ARIN prefixes after maximum aggregation: 54918
Prefixes being announced from the ARIN address blocks: 70434
Unique aggregates announced from the ARIN address blocks: 25834
ARIN Region origin ASes present in the Internet Routing Table: 10160
ARIN Region origin ASes announcing only one prefix: 3746
ARIN Region transit ASes present in the Internet Routing Table: 948
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 262353152
Equivalent to 15 /8s, 163 /16s and 49 /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: 32649
Total RIPE prefixes after maximum aggregation: 22250
Prefixes being announced from the RIPE address blocks: 29709
Unique aggregates announced from the RIPE address blocks: 20002
RIPE Region origin ASes present in the Internet Routing Table: 7031
RIPE Region origin ASes announcing only one prefix: 3715
RIPE Region transit ASes present in the Internet Routing Table: 1164
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 216599552
Equivalent to 12 /8s, 233 /16s and 12 /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: 9382
Total LACNIC prefixes after maximum aggregation: 3175
Prefixes being announced from the LACNIC address blocks: 7738
Unique aggregates announced from the LACNIC address blocks: 4474
LACNIC Region origin ASes present in the Internet Routing Table: 633
LACNIC Region origin ASes announcing only one prefix: 196
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: 21798912
Equivalent to 1 /8s, 76 /16s and 160 /24s
Percentage of available LACNIC address space announced: 32.5
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: 1702
Total AfriNIC prefixes after maximum aggregation: 792
Prefixes being announced from the AfriNIC address blocks: 1023
Unique aggregates announced from the AfriNIC address blocks: 785
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: 17
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2638848
Equivalent to 0 /8s, 40 /16s and 68 /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 768 77 14 Sify Limited
1221 752 1327 522 Telstra Pty Ltd
4755 698 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 602 3927 285 Korea Telecom (KIX)
7545 515 108 71 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
9498 337 99 59 BHARTI BT INTERNET LTD.
2907 336 1788 313 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 296 53 157 Wantree Development
9837 277 80 179 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 1509 6359 981 AT&T WorldNet Services
4323 1156 704 221 Time Warner Telecom
174 1121 5853 1024 Cogent Communications
721 1077 21922 310 DLA Systems Automation Center
701 1001 8153 851 UUNET Technologies, Inc.
6197 947 503 446 BellSouth Network Solutions,
2386 887 511 659 AT&T Data Communications Serv
1239 866 2851 612 Sprint
18566 840 227 10 Covad Communications
209 624 3454 488 Qwest
20115 623 487 327 Charter Communications
3356 574 10661 445 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 549 125 106 Sprint Canada, Inc.
3561 532 2416 420 Savvis
22773 522 1352 27 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 470 417 228 BellSouth Network Solutions,
7132 455 4948 389 SBC Internet Services
19262 449 1370 120 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 592 2000 483 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 179 284 39 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 396 650 167 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 110 7 14 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
11311 96 8 13 Sinectis S.A.
23216 96 24 20 RAMtelecom Telecomunicaciones
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 103 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 42 3 3 UUNET Kenya
12455 33 5 6 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 3 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 21 1 12 Standard Bank of South Africa
23889 20 5 9 MAURITIUS TELECOM
15804 18 2 1 AS of The Way Out Internet So
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 1156 935 Time Warner Telecom
18566 840 830 Covad Communications
721 1077 767 DLA Systems Automation Center
4134 960 764 CHINANET-BACKBONE
9583 768 754 Sify Limited
4755 698 634 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 947 501 BellSouth Network Solutions,
22773 522 495 Cox Communications, Inc.
5668 501 478 CenturyTel Internet Holdings,
7545 515 444 TPG Internet Pty Ltd
3602 549 443 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 429 356 E.Spire Communications, Inc.
19262 449 329 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
63946 RESERVED 204.222.174.0/23 268 Uniformed Services U
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 /15:615 /16:8461 /17:2704 /18:4606
/19:10662 /20:11688 /21:9733 /22:13129 /23:13996 /24:91660
/25:330 /26:314 /27:175 /28:48 /29:27 /30:80
/31:1 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 824 840 Covad Communications
6197 770 947 BellSouth Network Solutions,
7018 717 1509 AT&T WorldNet Services
2386 598 887 AT&T Data Communications Serv
9583 588 768 Sify Limited
4323 554 1156 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 365 592 UUNET - Commercial IP service
1239 364 866 Sprint
19916 364 370 OLM LLC
7011 346 402 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
6467 283 429 E.Spire Communications, Inc.
701 280 1001 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:22 11:1 12:1568 13:1 15:9
16:2 17:3 18:3 20:22 24:1064 30:3
32:60 33:1 38:143 40:55 44:4 47:2
52:4 55:1 56:3 57:23 58:154 59:64
60:114 61:720 62:766 63:1877 64:2830 65:2067
66:2887 67:600 68:568 69:1161 70:167 71:12
72:348 80:597 81:536 82:463 83:301 84:226
85:295 86:90 87:9 128:150 129:167 130:94
131:290 132:37 133:1 134:144 135:42 136:150
137:64 138:163 139:61 140:402 141:105 142:142
143:135 144:193 145:34 146:292 147:110 148:297
149:180 150:107 151:60 152:108 153:88 154:5
155:143 156:80 157:100 158:167 159:167 160:87
161:71 162:220 163:112 164:187 165:194 166:153
167:246 168:439 169:142 170:317 171:8 190:1
192:5723 193:3268 194:2401 195:1594 196:655 198:3858
199:3283 200:4157 201:276 202:6051 203:6362 204:3768
205:2060 206:2445 207:2807 208:2039 209:3326 210:1646
211:787 212:1242 213:1359 214:294 215:35 216:3627
217:1122 218:214 219:136 220:440 221:254 222:123
End of report
