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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 26 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168897
Prefixes after maximum aggregation: 96968
Unique aggregates announced to Internet: 81794
Total ASes present in the Internet Routing Table: 20369
Origin-only ASes present in the Internet Routing Table: 17736
Origin ASes announcing only one prefix: 8394
Transit ASes present in the Internet Routing Table: 2633
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: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1412069504
Equivalent to 84 /8s, 42 /16s and 120 /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: 80097
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35084
Total APNIC prefixes after maximum aggregation: 15792
Prefixes being announced from the APNIC address blocks: 32928
Unique aggregates announced from the APNIC address blocks: 16460
APNIC Region origin ASes present in the Internet Routing Table: 2345
APNIC Region origin ASes announcing only one prefix: 699
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: 195520128
Equivalent to 11 /8s, 167 /16s and 102 /24s
Percentage of available APNIC address space announced: 72.6
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: 54968
Prefixes being announced from the ARIN address blocks: 70525
Unique aggregates announced from the ARIN address blocks: 26150
ARIN Region origin ASes present in the Internet Routing Table: 10175
ARIN Region origin ASes announcing only one prefix: 3751
ARIN Region transit ASes present in the Internet Routing Table: 949
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 262407168
Equivalent to 15 /8s, 164 /16s and 4 /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: 32548
Total RIPE prefixes after maximum aggregation: 22249
Prefixes being announced from the RIPE address blocks: 29579
Unique aggregates announced from the RIPE address blocks: 19919
RIPE Region origin ASes present in the Internet Routing Table: 7017
RIPE Region origin ASes announcing only one prefix: 3710
RIPE Region transit ASes present in the Internet Routing Table: 1161
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 215411200
Equivalent to 12 /8s, 214 /16s and 234 /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: 9329
Total LACNIC prefixes after maximum aggregation: 3168
Prefixes being announced from the LACNIC address blocks: 7694
Unique aggregates announced from the LACNIC address blocks: 4430
LACNIC Region origin ASes present in the Internet Routing Table: 631
LACNIC Region origin ASes announcing only one prefix: 195
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: 21765376
Equivalent to 1 /8s, 76 /16s and 29 /24s
Percentage of available LACNIC address space announced: 32.4
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: 1674
Total AfriNIC prefixes after maximum aggregation: 791
Prefixes being announced from the AfriNIC address blocks: 1015
Unique aggregates announced from the AfriNIC address blocks: 785
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: 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: 2636288
Equivalent to 0 /8s, 40 /16s and 58 /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 957 5524 194 CHINANET-BACKBONE
9583 756 77 14 Sify Limited
1221 755 1327 524 Telstra Pty Ltd
4755 700 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 602 3927 285 Korea Telecom (KIX)
7545 517 108 73 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 385 84 78 Primus Telecommunications
9498 339 99 59 BHARTI BT INTERNET LTD.
2907 336 1788 313 SINET Japan
9929 335 223 47 China Netcom Corp.
17557 326 23 153 Pakistan Telecom
7474 315 257 218 SingTel Optus Pty Ltd
17488 314 18 7 Hathway IP Over Cable Interne
18302 302 110 158 SK Global co., Ltd
4802 295 53 156 Wantree Development
9837 277 80 179 Powertel Ltd
17974 265 65 14 PT TELEKOMUNIKASI INDONESIA
703 257 262 208 UUNET - Commercial IP service
9800 249 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1520 6377 983 AT&T WorldNet Services
4323 1154 704 221 Time Warner Telecom
174 1124 5837 1027 Cogent Communications
721 1092 21922 314 DLA Systems Automation Center
701 1005 8154 857 UUNET Technologies, Inc.
6197 946 503 445 BellSouth Network Solutions,
2386 903 528 663 AT&T Data Communications Serv
1239 863 2847 625 Sprint
18566 834 224 7 Covad Communications
20115 643 503 326 Charter Communications
209 627 3470 489 Qwest
3356 574 10661 444 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 549 125 106 Sprint Canada, Inc.
3561 533 2416 421 Savvis
22773 523 1352 27 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 468 417 227 BellSouth Network Solutions,
7132 453 4931 387 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
702 592 1999 483 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 290 3232 239 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 228 262 214 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
9121 173 282 44 TTnet Autonomous System
3269 169 1526 66 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 396 650 169 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 241 99 57 Servicios Alestra S.A de C.V
6147 194 110 21 Telefonica Del Peru
11664 191 20 23 Keytech SA
22047 173 128 7 VTR PUNTO NET S.A.
14117 152 9 5 Telefonica del Sur 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 106 52 9 Mega Cable S.A. de C.V.
21826 103 13 15 INTERCABLE
5639 102 12 9 Telecommunications Services o
11311 97 8 14 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 264 685 222 The Internet Solution
5536 121 8 14 Internet Egypt Network
8452 101 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
2905 77 210 69 The Internetworking Company o
15475 67 84 4 Nile Online
24835 58 34 7 RAYA Telecom - Egypt
20928 57 16 2 Noor Advanced Technologies AS
6713 51 54 8 Itissalat Al-MAGHRIB
5713 43 149 33 Telkom SA Ltd
9129 42 3 3 UUNET Kenya
15706 31 8 3 Sudatel Internet Exchange Aut
12455 30 5 6 Jambonet Autonomous system
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
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 1154 933 Time Warner Telecom
18566 834 827 Covad Communications
721 1092 778 DLA Systems Automation Center
4134 957 763 CHINANET-BACKBONE
9583 756 742 Sify Limited
4755 700 636 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 946 501 BellSouth Network Solutions,
22773 523 496 Cox Communications, Inc.
5668 501 478 CenturyTel Internet Holdings,
7545 517 444 TPG Internet Pty Ltd
3602 549 443 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 437 364 E.Spire Communications, Inc.
19262 450 330 Verizon Global Networks
20115 643 317 Charter Communications
4766 602 317 Korea Telecom (KIX)
11492 322 315 Cable One
9443 385 307 Primus Telecommunications
17488 314 307 Hathway IP Over Cable Interne
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
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 /12:76
/13:171 /14:319 /15:614 /16:8502 /17:2699 /18:4598
/19:10661 /20:11686 /21:9729 /22:13129 /23:14016 /24:91637
/25:330 /26:317 /27:177 /28:48 /29:28 /30:79
/31:1 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 818 834 Covad Communications
6197 769 946 BellSouth Network Solutions,
7018 725 1520 AT&T WorldNet Services
2386 611 903 AT&T Data Communications Serv
9583 578 756 Sify Limited
4323 552 1154 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 366 592 UUNET - Commercial IP service
19916 363 369 OLM LLC
1239 359 863 Sprint
7011 345 401 Citizens Utilities
6198 341 468 BellSouth Network Solutions,
11492 314 322 Cable One
15270 302 326 PaeTec.net -a division of Pae
6517 301 324 Yipes Communications, Inc.
6467 290 437 E.Spire Communications, Inc.
18302 287 302 SK Global co., Ltd
701 281 1005 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:22 11:1 12:1573 13:1 15:9
16:2 17:3 18:3 20:5 24:961 30:3
32:61 33:1 38:143 40:56 44:4 47:2
52:4 55:2 56:3 57:23 58:154 59:64
60:114 61:722 62:712 63:1892 64:2829 65:2073
66:2907 67:600 68:582 69:1150 70:173 71:12
72:347 80:592 81:539 82:463 83:297 84:225
85:282 86:87 87:27 128:152 129:167 130:90
131:299 132:36 133:1 134:144 135:42 136:150
137:66 138:163 139:61 140:404 141:106 142:144
143:137 144:190 145:34 146:287 147:111 148:297
149:179 150:107 151:62 152:108 153:89 154:5
155:143 156:80 157:100 158:167 159:167 160:87
161:72 162:220 163:112 164:188 165:194 166:154
167:247 168:439 169:141 170:317 171:8 190:1
192:5747 193:3257 194:2400 195:1592 196:652 198:3877
199:3276 200:4130 201:275 202:6069 203:6366 204:3808
205:2052 206:2457 207:2832 208:2044 209:3336 210:1656
211:786 212:1245 213:1333 214:295 215:35 216:3643
217:1117 218:217 219:132 220:437 221:248 222:123
End of report
