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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 23 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168513
Prefixes after maximum aggregation: 96913
Unique aggregates announced to Internet: 81779
Total ASes present in the Internet Routing Table: 20351
Origin-only ASes present in the Internet Routing Table: 17716
Origin ASes announcing only one prefix: 8381
Transit ASes present in the Internet Routing Table: 2635
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: 16
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1406671137
Equivalent to 83 /8s, 216 /16s and 25 /24s
Percentage of available address space announced: 38.0
Percentage of allocated address space announced: 57.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 79934
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35036
Total APNIC prefixes after maximum aggregation: 15791
Prefixes being announced from the APNIC address blocks: 32893
Unique aggregates announced from the APNIC address blocks: 16537
APNIC Region origin ASes present in the Internet Routing Table: 2341
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: 192796032
Equivalent to 11 /8s, 125 /16s and 213 /24s
Percentage of available APNIC address space announced: 71.5
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: 90100
Total ARIN prefixes after maximum aggregation: 54929
Prefixes being announced from the ARIN address blocks: 70401
Unique aggregates announced from the ARIN address blocks: 26124
ARIN Region origin ASes present in the Internet Routing Table: 10169
ARIN Region origin ASes announcing only one prefix: 3745
ARIN Region transit ASes present in the Internet Routing Table: 952
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 259468577
Equivalent to 15 /8s, 119 /16s and 45 /24s
Percentage of available ARIN address space announced: 64.4
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: 32457
Total RIPE prefixes after maximum aggregation: 22231
Prefixes being announced from the RIPE address blocks: 29468
Unique aggregates announced from the RIPE address blocks: 19894
RIPE Region origin ASes present in the Internet Routing Table: 7008
RIPE Region origin ASes announcing only one prefix: 3707
RIPE Region transit ASes present in the Internet Routing Table: 1162
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 215266432
Equivalent to 12 /8s, 212 /16s and 180 /24s
Percentage of available RIPE address space announced: 64.2
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: 9244
Total LACNIC prefixes after maximum aggregation: 3174
Prefixes being announced from the LACNIC address blocks: 7605
Unique aggregates announced from the LACNIC address blocks: 4406
LACNIC Region origin ASes present in the Internet Routing Table: 633
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: 23
Number of LACNIC addresses announced to Internet: 21695744
Equivalent to 1 /8s, 75 /16s and 13 /24s
Percentage of available LACNIC address space announced: 32.3
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: 1655
Total AfriNIC prefixes after maximum aggregation: 788
Prefixes being announced from the AfriNIC address blocks: 1013
Unique aggregates announced from the AfriNIC address blocks: 781
AfriNIC Region origin ASes present in the Internet Routing Table: 133
AfriNIC Region origin ASes announcing only one prefix: 39
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2626816
Equivalent to 0 /8s, 40 /16s and 21 /24s
Percentage of available AfriNIC address space announced: 7.8
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 956 5524 194 CHINANET-BACKBONE
1221 758 1327 527 Telstra Pty Ltd
9583 757 77 14 Sify Limited
4755 703 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 597 3414 281 Korea Telecom (KIX)
7545 519 108 74 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 382 82 77 Primus Telecommunications
9498 340 83 63 BHARTI BT INTERNET LTD.
9929 338 224 46 China Netcom Corp.
2907 337 1789 314 SINET Japan
17557 329 24 153 Pakistan Telecom
7474 315 257 218 SingTel Optus Pty Ltd
18302 300 109 157 SK Global co., Ltd
17488 299 18 19 Hathway IP Over Cable Interne
4802 296 53 157 Wantree Development
9837 277 80 179 Powertel Ltd
703 256 262 207 UUNET - Commercial IP service
17974 254 65 14 PT TELEKOMUNIKASI INDONESIA
9800 250 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1518 6393 983 AT&T WorldNet Services
4323 1151 704 221 Time Warner Telecom
174 1115 5820 1026 Cogent Communications
721 1094 21907 315 DLA Systems Automation Center
701 1004 8154 854 UUNET Technologies, Inc.
6197 941 497 450 BellSouth Network Solutions,
2386 900 528 664 AT&T Data Communications Serv
1239 867 2848 629 Sprint
18566 834 224 7 Covad Communications
20115 644 503 326 Charter Communications
209 627 3470 490 Qwest
3356 577 10662 446 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 549 125 106 Sprint Canada, Inc.
3561 530 2416 420 Savvis
22773 523 1352 27 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 472 415 227 BellSouth Network Solutions,
7132 455 4948 389 SBC Internet Services
19262 447 1353 119 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 1999 484 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 291 3232 240 Deutsche Telekom AG
8220 262 474 258 COLT Telecommunications
680 245 2041 241 DFN-IP service G-WiN
3246 230 469 223 Song Networks
8708 227 261 213 Romania Data Systems S.A.
1257 198 713 176 SWIPnet Swedish IP Network
5515 181 778 127 Sonera Solution Autonomous Sy
6746 181 49 157 Dynamic Network Technologies,
786 174 1794 174 The JANET IP Service
3269 171 1528 68 TELECOM ITALIA
5400 166 289 140 BT Ignite European Backbone
9121 165 278 42 TTnet Autonomous System
8866 164 20 7 Bulgarian Telecommunication C
3300 156 184 90 AUCS Communications Services
6830 154 665 32 UPC Distribution 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 395 648 166 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 242 99 57 Servicios Alestra S.A de C.V
6147 193 110 21 Telefonica Del Peru
11664 190 20 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
22047 145 128 7 VTR PUNTO NET S.A.
7303 143 68 15 Telecom Argentina Stet-France
19632 143 14 5 Metropolis Intercom S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 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 109 52 9 Mega Cable S.A. de C.V.
21826 103 13 15 INTERCABLE
5639 101 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 95 24 20 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 264 685 222 The Internet Solution
5536 122 8 15 Internet Egypt Network
8452 104 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
2905 76 266 68 The Internetworking Company o
24835 58 34 7 RAYA Telecom - Egypt
20928 57 16 2 Noor Advanced Technologies AS
6713 51 54 8 Itissalat Al-MAGHRIB
15475 48 84 4 Nile Online
9129 42 3 3 UUNET Kenya
5713 41 149 32 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
12455 30 5 6 Jambonet Autonomous system
8524 24 1 4 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
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1151 930 Time Warner Telecom
18566 834 827 Covad Communications
721 1094 779 DLA Systems Automation Center
4134 956 762 CHINANET-BACKBONE
9583 757 743 Sify Limited
4755 703 637 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 523 496 Cox Communications, Inc.
6197 941 491 BellSouth Network Solutions,
5668 501 478 CenturyTel Internet Holdings,
7545 519 445 TPG Internet Pty Ltd
3602 549 443 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 437 364 E.Spire Communications, Inc.
19262 447 328 Verizon Global Networks
20115 644 318 Charter Communications
4766 597 316 Korea Telecom (KIX)
11492 318 312 Cable One
9443 382 305 Primus Telecommunications
6140 417 294 ImpSat
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
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
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
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
192.145.251.0/24 17860 WEBZEN
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 /11:16 /12:76
/13:169 /14:319 /15:603 /16:8492 /17:2690 /18:4578
/19:10642 /20:11623 /21:9680 /22:13105 /23:13991 /24:91439
/25:343 /26:333 /27:193 /28:51 /29:28 /30:80
/31:1 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 818 834 Covad Communications
6197 768 941 BellSouth Network Solutions,
7018 722 1518 AT&T WorldNet Services
2386 607 900 AT&T Data Communications Serv
9583 574 757 Sify Limited
4323 550 1151 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 415 597 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 366 593 UUNET - Commercial IP service
19916 363 370 OLM LLC
1239 361 867 Sprint
6198 345 472 BellSouth Network Solutions,
7011 344 399 Citizens Utilities
11492 310 318 Cable One
6517 301 323 Yipes Communications, Inc.
15270 300 324 PaeTec.net -a division of Pae
6467 291 437 E.Spire Communications, Inc.
18302 285 300 SK Global co., Ltd
701 279 1004 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 11:1 12:1574 13:1 15:9
16:2 17:3 18:3 20:5 24:960 30:3
32:61 33:1 38:143 40:56 44:4 47:2
52:4 55:2 56:3 57:23 58:154 59:62
60:110 61:725 62:683 63:1893 64:2835 65:2076
66:2903 67:584 68:580 69:1142 70:171 71:12
72:338 80:598 81:547 82:457 83:295 84:227
85:309 86:82 87:27 128:153 129:167 130:90
131:301 132:34 133:1 134:144 135:42 136:150
137:63 138:163 139:61 140:398 141:105 142:145
143:136 144:191 145:33 146:286 147:111 148:298
149:180 150:107 151:64 152:108 153:89 154:5
155:143 156:76 157:99 158:167 159:167 160:82
161:72 162:219 163:111 164:188 165:194 166:153
167:246 168:437 169:145 170:317 171:8 190:1
192:5746 193:3258 194:2399 195:1583 196:653 198:3877
199:3279 200:4110 201:239 202:6051 203:6343 204:3807
205:2041 206:2459 207:2835 208:2040 209:3343 210:1658
211:779 212:1230 213:1311 214:295 215:35 216:3633
217:1114 218:213 219:167 220:433 221:242 222:116
End of report
