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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 04 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168933
Prefixes after maximum aggregation: 96665
Unique aggregates announced to Internet: 81361
Total ASes present in the Internet Routing Table: 20224
Origin-only ASes present in the Internet Routing Table: 17640
Origin ASes announcing only one prefix: 8313
Transit ASes present in the Internet Routing Table: 2584
Transit-only ASes present in the Internet Routing Table: 74
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: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1399193877
Equivalent to 83 /8s, 102 /16s and 1 /24s
Percentage of available address space announced: 37.8
Percentage of allocated address space announced: 56.8
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80744
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34802
Total APNIC prefixes after maximum aggregation: 15737
Prefixes being announced from the APNIC address blocks: 32648
Unique aggregates announced from the APNIC address blocks: 16296
APNIC Region origin ASes present in the Internet Routing Table: 2318
APNIC Region origin ASes announcing only one prefix: 683
APNIC Region transit ASes present in the Internet Routing Table: 345
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 192386688
Equivalent to 11 /8s, 119 /16s and 150 /24s
Percentage of available APNIC address space announced: 71.4
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: 90941
Total ARIN prefixes after maximum aggregation: 54876
Prefixes being announced from the ARIN address blocks: 71076
Unique aggregates announced from the ARIN address blocks: 25926
ARIN Region origin ASes present in the Internet Routing Table: 10128
ARIN Region origin ASes announcing only one prefix: 3738
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: 20
Number of ARIN addresses announced to Internet: 255085845
Equivalent to 15 /8s, 52 /16s and 77 /24s
Percentage of available ARIN address space announced: 63.4
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: 32377
Total RIPE prefixes after maximum aggregation: 22102
Prefixes being announced from the RIPE address blocks: 29396
Unique aggregates announced from the RIPE address blocks: 19771
RIPE Region origin ASes present in the Internet Routing Table: 6946
RIPE Region origin ASes announcing only one prefix: 3660
RIPE Region transit ASes present in the Internet Routing Table: 1128
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 213154944
Equivalent to 12 /8s, 180 /16s and 124 /24s
Percentage of available RIPE address space announced: 63.5
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: 9153
Total LACNIC prefixes after maximum aggregation: 3163
Prefixes being announced from the LACNIC address blocks: 7506
Unique aggregates announced from the LACNIC address blocks: 4385
LACNIC Region origin ASes present in the Internet Routing Table: 630
LACNIC Region origin ASes announcing only one prefix: 195
LACNIC Region transit ASes present in the Internet Routing Table: 116
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 20746240
Equivalent to 1 /8s, 60 /16s and 144 /24s
Percentage of available LACNIC address space announced: 30.9
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: 1645
Total AfriNIC prefixes after maximum aggregation: 787
Prefixes being announced from the AfriNIC address blocks: 1002
Unique aggregates announced from the AfriNIC address blocks: 767
AfriNIC Region origin ASes present in the Internet Routing Table: 133
AfriNIC Region origin ASes announcing only one prefix: 37
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2355968
Equivalent to 0 /8s, 35 /16s and 243 /24s
Percentage of available AfriNIC address space announced: 7.0
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 954 5521 192 CHINANET-BACKBONE
1221 765 1326 526 Telstra Pty Ltd
9583 754 77 14 Sify Limited
4755 674 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 590 3412 278 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 463 6707 98 Softbank BB Corp.
9443 382 82 77 Primus Telecommunications
9929 344 224 46 China Netcom Corp.
9498 341 83 61 BHARTI BT INTERNET LTD.
2907 337 1789 314 SINET Japan
17557 326 23 157 Pakistan Telecom
7474 317 273 219 SingTel Optus Pty Ltd
4802 297 53 164 Wantree Development
18302 291 109 157 SK Global co., Ltd
9837 279 80 182 Powertel Ltd
17488 272 16 8 Hathway IP Over Cable Interne
17974 271 65 14 PT TELEKOMUNIKASI INDONESIA
703 250 262 206 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 1504 6402 967 AT&T WorldNet Services
19262 1450 1299 242 Verizon Global Networks
4323 1140 688 220 Time Warner Telecom
174 1125 5821 1041 Cogent Communications
721 1078 21778 311 DLA Systems Automation Center
701 1020 8173 865 UUNET Technologies, Inc.
6197 937 497 446 BellSouth Network Solutions,
2386 893 528 656 AT&T Data Communications Serv
1239 868 2863 629 Sprint
18566 833 224 7 Covad Communications
20115 650 499 321 Charter Communications
209 625 3471 492 Qwest
3356 583 10763 430 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 549 123 104 Sprint Canada, Inc.
3561 532 2384 420 Savvis
22773 506 1188 23 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 468 396 225 BellSouth Network Solutions,
852 455 1093 384 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 591 1999 482 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 292 3232 241 Deutsche Telekom AG
8220 266 473 262 COLT Telecommunications
680 245 2041 241 DFN-IP service G-WiN
3246 230 469 223 Song Networks
8708 228 262 214 Romania Data Systems S.A.
1257 196 712 174 SWIPnet Swedish IP Network
5515 181 778 127 Sonera Solution Autonomous Sy
5400 176 289 148 BT Ignite European Backbone
786 175 1794 175 The JANET IP Service
6746 175 49 153 Dynamic Network Technologies,
719 168 340 100 LANLINK autonomous system
3269 168 1504 71 TELECOM ITALIA
8866 167 21 11 Bulgarian Telecommunication C
3300 155 184 89 AUCS Communications Services
9121 153 274 35 TTnet Autonomous System
6830 148 537 31 UPC Distribution Services
25186 142 145 99 France Telecom Transpac's Tra
8551 136 116 19 Bezeq International
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 380 599 160 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 234 99 59 Servicios Alestra S.A de C.V
6147 191 110 21 Telefonica Del Peru
11664 181 20 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 144 69 18 Telecom Argentina Stet-France
22047 143 112 7 VTR PUNTO NET S.A.
19632 142 14 5 Metropolis Intercom S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 87 Global One Communicaoes Ltda
19169 119 7 25 Telconet
6503 115 148 76 AVANTEL, S.A.
13999 111 52 9 Mega Cable S.A. de C.V.
18822 110 7 14 TELEFONICA MANQUEHUE
10481 101 40 7 Prima S.A.
21826 101 13 18 INTERCABLE
22927 97 81 26 TELEFONICA DE ARGENTINA
5639 96 12 9 Telecommunications Services o
23216 96 24 21 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 263 621 221 The Internet Solution
5536 120 15 17 Internet Egypt Network
8452 99 32 8 TEDATA
2018 96 295 87 Tertiary Education Network
2905 76 266 68 The Internetworking Company o
24835 57 34 6 RAYA Telecom - Egypt
20928 56 16 2 Noor Advanced Technologies AS
6713 51 54 8 Itissalat Al-MAGHRIB
15475 49 84 4 Nile Online
9129 42 3 3 UUNET Kenya
5713 36 142 29 Telkom SA Ltd
12455 33 6 7 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
23889 20 5 9 MAURITIUS TELECOM
10798 19 1 11 Standard Bank of South Africa
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
21491 17 1 1 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
19262 1450 1208 Verizon Global Networks
4323 1140 920 Time Warner Telecom
18566 833 826 Covad Communications
721 1078 767 DLA Systems Automation Center
4134 954 762 CHINANET-BACKBONE
9583 754 740 Sify Limited
4755 674 610 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 937 491 BellSouth Network Solutions,
22773 506 483 Cox Communications, Inc.
5668 501 478 CenturyTel Internet Holdings,
3602 549 445 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 463 365 Softbank BB Corp.
6467 431 358 E.Spire Communications, Inc.
20115 650 329 Charter Communications
688 388 325 Department of Interior
4766 590 312 Korea Telecom (KIX)
11492 312 306 Cable One
9443 382 305 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
65507 PRIVATE 200.0.64.0/24 27750 Cooperación Latino A
65142 PRIVATE 200.32.76.0/24 6140 ImpSat
65142 PRIVATE 200.32.77.0/24 6140 ImpSat
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
64512 PRIVATE 200.61.58.0/23 11664 Keytech SA
64512 PRIVATE 200.80.148.0/23 11664 Keytech SA
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
172.32.0.0/24 7011 Citizens Utilities
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
192.169.0.0/23 3970 RGnet, Inc.
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 /11:15 /12:75
/13:166 /14:317 /15:608 /16:8469 /17:2669 /18:4546
/19:10547 /20:11574 /21:9568 /22:13015 /23:13913 /24:92369
/25:371 /26:315 /27:177 /28:50 /29:28 /30:77
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
19262 1174 1450 Verizon Global Networks
18566 817 833 Covad Communications
6197 764 937 BellSouth Network Solutions,
7018 708 1504 AT&T WorldNet Services
2386 604 893 AT&T Data Communications Serv
9583 572 754 Sify Limited
27364 545 554 Armstrong Cable Services
4323 541 1140 Time Warner Telecom
4766 408 590 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
688 385 388 Department of Interior
702 363 591 UUNET - Commercial IP service
19916 363 370 OLM LLC
1239 360 868 Sprint
6198 343 468 BellSouth Network Solutions,
7011 329 381 Citizens Utilities
11492 304 312 Cable One
6517 296 318 Yipes Communications, Inc.
15270 296 320 PaeTec.net -a division of Pae
6467 287 431 E.Spire Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 9:1 12:1557 13:1 15:9
16:2 17:3 18:3 20:4 24:953 30:2
32:70 33:1 38:140 40:55 44:4 47:2
52:4 55:2 56:3 57:23 58:143 59:59
60:71 61:731 62:682 63:1889 64:2829 65:2060
66:3926 67:590 68:570 69:1116 70:151 71:12
72:319 80:597 81:559 82:438 83:294 84:225
85:299 86:71 87:19 128:160 129:168 130:88
131:294 132:38 133:1 134:145 135:42 136:137
137:71 138:164 139:61 140:638 141:104 142:144
143:141 144:197 145:34 146:291 147:110 148:288
149:176 150:94 151:65 152:107 153:89 154:5
155:141 156:78 157:99 158:166 159:167 160:82
161:71 162:218 163:95 164:188 165:192 166:153
167:243 168:436 169:143 170:322 171:8 172:1
190:1 192:5736 193:3236 194:2428 195:1614 196:648
198:3879 199:3293 200:4070 201:229 202:5972 203:6387
204:3805 205:2028 206:2461 207:2820 208:2045 209:3352
210:1642 211:739 212:1240 213:1345 214:273 215:32
216:3645 217:1118 218:213 219:183 220:399 221:238
222:124
End of report
