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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 23 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170921
Prefixes after maximum aggregation: 97315
Unique aggregates announced to Internet: 82249
Total ASes present in the Internet Routing Table: 20557
Origin-only ASes present in the Internet Routing Table: 17873
Origin ASes announcing only one prefix: 8466
Transit ASes present in the Internet Routing Table: 2684
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: 17
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1424564608
Equivalent to 84 /8s, 233 /16s and 33 /24s
Percentage of available address space announced: 38.4
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81509
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35481
Total APNIC prefixes after maximum aggregation: 15575
Prefixes being announced from the APNIC address blocks: 33329
Unique aggregates announced from the APNIC address blocks: 16395
APNIC Region origin ASes present in the Internet Routing Table: 2365
APNIC Region origin ASes announcing only one prefix: 694
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 200253952
Equivalent to 11 /8s, 239 /16s and 162 /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: 91070
Total ARIN prefixes after maximum aggregation: 55237
Prefixes being announced from the ARIN address blocks: 71183
Unique aggregates announced from the ARIN address blocks: 26151
ARIN Region origin ASes present in the Internet Routing Table: 10229
ARIN Region origin ASes announcing only one prefix: 3778
ARIN Region transit ASes present in the Internet Routing Table: 959
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 269320960
Equivalent to 16 /8s, 13 /16s and 131 /24s
Percentage of available ARIN address space announced: 66.9
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: 33066
Total RIPE prefixes after maximum aggregation: 22477
Prefixes being announced from the RIPE address blocks: 30098
Unique aggregates announced from the RIPE address blocks: 20179
RIPE Region origin ASes present in the Internet Routing Table: 7121
RIPE Region origin ASes announcing only one prefix: 3754
RIPE Region transit ASes present in the Internet Routing Table: 1187
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 218455744
Equivalent to 13 /8s, 5 /16s and 94 /24s
Percentage of available RIPE address space announced: 65.1
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: 9558
Total LACNIC prefixes after maximum aggregation: 3210
Prefixes being announced from the LACNIC address blocks: 7911
Unique aggregates announced from the LACNIC address blocks: 4601
LACNIC Region origin ASes present in the Internet Routing Table: 637
LACNIC Region origin ASes announcing only one prefix: 198
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22032896
Equivalent to 1 /8s, 80 /16s and 50 /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: 1725
Total AfriNIC prefixes after maximum aggregation: 816
Prefixes being announced from the AfriNIC address blocks: 1065
Unique aggregates announced from the AfriNIC address blocks: 804
AfriNIC Region origin ASes present in the Internet Routing Table: 140
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: 2734336
Equivalent to 0 /8s, 41 /16s and 185 /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 984 6080 203 CHINANET-BACKBONE
9583 798 77 12 Sify Limited
1221 750 1328 516 Telstra Pty Ltd
4755 720 259 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 59 BHARTI BT INTERNET LTD.
2907 336 1757 313 SINET Japan
9929 335 224 46 China Netcom Corp.
17557 329 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
17974 301 66 13 PT TELEKOMUNIKASI INDONESIA
18302 293 109 155 SK Global co., Ltd
9837 271 79 172 Powertel Ltd
703 254 263 207 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 1511 6360 986 AT&T WorldNet Services
4323 1172 705 228 Time Warner Telecom
721 1087 21922 312 DLA Systems Automation Center
174 1070 5850 1002 Cogent Communications
701 992 8104 839 UUNET Technologies, Inc.
6197 943 389 479 BellSouth Network Solutions,
2386 921 515 684 AT&T Data Communications Serv
1239 866 2851 609 Sprint
18566 854 240 7 Covad Communications
20115 649 507 331 Charter Communications
209 628 3457 494 Qwest
3356 575 10643 442 Level 3 Communications, LLC
3602 558 131 110 Sprint Canada, Inc.
27364 558 44 18 Armstrong Cable Services
3561 540 2409 420 Savvis
22773 534 1352 28 Cox Communications, Inc.
5668 490 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 462 4934 395 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 268 475 263 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 237 262 217 Romania Data Systems S.A.
3246 230 477 223 Song Networks
9121 223 336 25 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 168 288 141 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 398 650 169 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 247 83 60 Servicios Alestra S.A de C.V
11664 198 20 24 Keytech SA
6147 191 118 21 Telefonica Del Peru
19632 183 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
14117 156 10 5 Telefonica del Sur S.A.
7303 148 70 13 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
13999 124 52 9 Mega Cable S.A. de C.V.
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
19169 120 8 28 Telconet
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 80 32 6 TEDATA
2905 79 211 71 The Internetworking Company o
20928 61 16 2 Noor Advanced Technologies AS
24835 59 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 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 854 847 Covad Communications
9583 798 786 Sify Limited
4134 984 781 CHINANET-BACKBONE
721 1087 775 DLA Systems Automation Center
4755 720 654 Videsh Sanchar Nigam Ltd. Aut
27364 558 540 Armstrong Cable Services
22773 534 506 Cox Communications, Inc.
5668 490 467 CenturyTel Internet Holdings,
6197 943 464 BellSouth Network Solutions,
3602 558 448 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 649 318 Charter Communications
17488 320 312 Hathway IP Over Cable Interne
15270 338 311 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
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 /15:631 /16:8510 /17:2779 /18:4693
/19:10791 /20:11807 /21:9880 /22:13264 /23:14155 /24:92830
/25:340 /26:273 /27:188 /28:45 /29:14 /30:61
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 838 854 Covad Communications
6197 772 943 BellSouth Network Solutions,
7018 723 1511 AT&T WorldNet Services
2386 630 921 AT&T Data Communications Serv
9583 624 798 Sify Limited
4323 560 1172 Time Warner Telecom
27364 549 558 Armstrong Cable Services
4766 427 610 Korea Telecom (KIX)
5668 398 490 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 311 337 Yipes Communications, Inc.
15270 308 338 PaeTec.net -a division of Pae
701 287 992 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
20115 273 649 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 24:1084 30:3 32:65
38:157 40:54 44:4 47:2 52:4 55:1
56:3 57:23 58:157 59:69 60:122 61:760
62:764 63:1896 64:2867 65:2081 66:2914 67:616
68:611 69:1219 70:188 71:17 72:383 80:627
81:525 82:472 83:304 84:251 85:332 86:118
87:16 125:8 128:159 129:167 130:96 131:294
132:36 133:1 134:144 135:43 136:149 137:66
138:165 139:61 140:429 141:105 142:148 143:141
144:218 145:34 146:297 147:118 148:301 149:183
150:108 151:72 152:113 153:89 154:5 155:140
156:80 157:119 158:164 159:171 160:85 161:74
162:231 163:132 164:189 165:186 166:154 167:251
168:439 169:142 170:316 171:8 190:1 192:5706
193:3304 194:2417 195:1560 196:682 198:3878 199:3238
200:4195 201:332 202:6081 203:6419 204:3797 205:2063
206:2446 207:2819 208:2041 209:3393 210:1664 211:812
212:1185 213:1372 214:301 215:36 216:3686 217:1141
218:220 219:138 220:485 221:281 222:129
End of report
