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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 05 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171029
Prefixes after maximum aggregation: 97556
Unique aggregates announced to Internet: 82805
Total ASes present in the Internet Routing Table: 20618
Origin-only ASes present in the Internet Routing Table: 17931
Origin ASes announcing only one prefix: 8513
Transit ASes present in the Internet Routing Table: 2687
Transit-only ASes present in the Internet Routing Table: 73
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: 21
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1445659136
Equivalent to 86 /8s, 43 /16s and 2 /24s
Percentage of available address space announced: 39.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81436
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35509
Total APNIC prefixes after maximum aggregation: 15674
Prefixes being announced from the APNIC address blocks: 33324
Unique aggregates announced from the APNIC address blocks: 16556
APNIC Region origin ASes present in the Internet Routing Table: 2374
APNIC Region origin ASes announcing only one prefix: 699
APNIC Region transit ASes present in the Internet Routing Table: 361
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 201661184
Equivalent to 12 /8s, 5 /16s and 27 /24s
Percentage of available APNIC address space announced: 74.8
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: 90873
Total ARIN prefixes after maximum aggregation: 55328
Prefixes being announced from the ARIN address blocks: 70928
Unique aggregates announced from the ARIN address blocks: 26398
ARIN Region origin ASes present in the Internet Routing Table: 10242
ARIN Region origin ASes announcing only one prefix: 3787
ARIN Region transit ASes present in the Internet Routing Table: 961
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 270849280
Equivalent to 16 /8s, 36 /16s and 213 /24s
Percentage of available ARIN address space announced: 67.3
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: 33310
Total RIPE prefixes after maximum aggregation: 22531
Prefixes being announced from the RIPE address blocks: 30327
Unique aggregates announced from the RIPE address blocks: 20269
RIPE Region origin ASes present in the Internet Routing Table: 7157
RIPE Region origin ASes announcing only one prefix: 3781
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: 219380288
Equivalent to 13 /8s, 19 /16s and 122 /24s
Percentage of available RIPE address space announced: 65.4
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: 9563
Total LACNIC prefixes after maximum aggregation: 3205
Prefixes being announced from the LACNIC address blocks: 7945
Unique aggregates announced from the LACNIC address blocks: 4644
LACNIC Region origin ASes present in the Internet Routing Table: 640
LACNIC Region origin ASes announcing only one prefix: 203
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22057472
Equivalent to 1 /8s, 80 /16s and 146 /24s
Percentage of available LACNIC address space announced: 32.9
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: 1749
Total AfriNIC prefixes after maximum aggregation: 818
Prefixes being announced from the AfriNIC address blocks: 1058
Unique aggregates announced from the AfriNIC address blocks: 807
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 43
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: 2728960
Equivalent to 0 /8s, 41 /16s and 164 /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 991 6168 208 CHINANET-BACKBONE
9583 803 77 12 Sify Limited
1221 757 1330 519 Telstra Pty Ltd
4755 713 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 610 3927 289 Korea Telecom (KIX)
7545 510 108 72 TPG Internet Pty Ltd
17676 469 6803 99 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 340 164 59 BHARTI BT INTERNET LTD.
2907 338 1763 315 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
17557 329 23 160 Pakistan Telecom
4802 315 70 157 Wantree Development
7474 315 257 217 SingTel Optus Pty Ltd
18302 296 109 163 SK Global co., Ltd
9837 273 79 174 Powertel Ltd
17974 270 64 13 PT TELEKOMUNIKASI INDONESIA
18101 258 68 18 Reliance Infocom Ltd Internet
9800 253 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1511 6358 989 AT&T WorldNet Services
4323 1177 705 228 Time Warner Telecom
721 1072 21937 308 DLA Systems Automation Center
174 1070 5849 1000 Cogent Communications
701 988 8120 831 UUNET Technologies, Inc.
6197 948 399 483 BellSouth Network Solutions,
2386 919 513 684 AT&T Data Communications Serv
1239 859 2851 604 Sprint
18566 858 240 7 Covad Communications
209 633 3569 498 Qwest
20115 621 510 327 Charter Communications
3356 566 10658 437 Level 3 Communications, LLC
3602 560 131 109 Sprint Canada, Inc.
22773 543 1352 30 Cox Communications, Inc.
3561 538 2409 418 Savvis
5668 480 115 23 CenturyTel Internet Holdings,
6198 476 417 230 BellSouth Network Solutions,
19262 467 1412 120 Verizon Global Networks
7132 464 4950 396 SBC Internet Services
852 436 1092 383 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 608 1993 481 UUNET - Commercial IP service
3301 302 1081 288 TeliaNet Sweden
3320 285 3230 238 Deutsche Telekom AG
8220 268 475 262 COLT Telecommunications
9121 245 415 21 TTnet Autonomous System
680 244 2040 240 DFN-IP service G-WiN
8708 239 266 219 Romania Data Systems S.A.
3246 226 474 219 Song Networks
1257 194 712 172 SWIPnet Swedish IP Network
6746 189 50 164 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
3269 178 1638 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 162 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 152 227 107 France Telecom Transpac's Tra
3215 140 1205 82 France Telecom Transpac
24863 138 37 6 LINKdotNET AS number
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 400 650 170 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 278 85 65 Servicios Alestra S.A de C.V
11664 204 22 24 Keytech SA
6147 190 116 23 Telefonica Del Peru
19632 183 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
14117 155 10 5 Telefonica del Sur S.A.
7303 145 68 17 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
19169 119 7 27 Telconet
13999 118 52 9 Mega Cable S.A. de C.V.
6503 113 148 74 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 107 13 16 INTERCABLE
11311 99 8 10 Sinectis S.A.
5639 97 10 8 Telecommunications Services o
23216 96 23 18 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 226 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 112 36 8 TEDATA
2018 95 295 86 Tertiary Education Network
15475 83 84 4 Nile Online
2905 79 211 71 The Internetworking Company o
20928 61 16 2 Noor Advanced Technologies AS
24835 58 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 29 3 19 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 20 5 9 MAURITIUS TELECOM
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 1177 949 Time Warner Telecom
18566 858 851 Covad Communications
9583 803 791 Sify Limited
4134 991 783 CHINANET-BACKBONE
721 1072 764 DLA Systems Automation Center
4755 713 647 Videsh Sanchar Nigam Ltd. Aut
22773 543 513 Cox Communications, Inc.
6197 948 465 BellSouth Network Solutions,
5668 480 457 CenturyTel Internet Holdings,
3602 560 451 Sprint Canada, Inc.
7545 510 438 TPG Internet Pty Ltd
17676 469 370 Softbank BB Corp.
6467 402 354 E.Spire Communications, Inc.
19262 467 347 Verizon Global Networks
11492 341 332 Cable One
17488 336 327 Hathway IP Over Cable Interne
4766 610 321 Korea Telecom (KIX)
15270 345 317 PaeTec.net -a division of Pae
9443 392 314 Primus Telecommunications
13609 332 302 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
64900 PRIVATE 64.116.137.0/24 17399 Comsat Venezuela, CO
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
65205 PRIVATE 152.163.5.0/24 2056 America Online
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
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
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
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
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
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 /8:18 /9:5 /10:8 /11:17 /12:80
/13:179 /14:326 /15:636 /16:8538 /17:2807 /18:4724
/19:10795 /20:11837 /21:9934 /22:13262 /23:14223 /24:92701
/25:326 /26:291 /27:175 /28:39 /29:14 /30:60
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 842 858 Covad Communications
6197 775 948 BellSouth Network Solutions,
7018 731 1511 AT&T WorldNet Services
2386 635 919 AT&T Data Communications Serv
9583 626 803 Sify Limited
4323 560 1177 Time Warner Telecom
4766 425 610 Korea Telecom (KIX)
702 384 608 UUNET - Commercial IP service
5668 384 480 CenturyTel Internet Holdings,
7011 366 425 Citizens Utilities
1239 365 859 Sprint
19916 363 369 OLM LLC
6198 349 476 BellSouth Network Solutions,
11492 333 341 Cable One
6517 317 343 Yipes Communications, Inc.
15270 315 345 PaeTec.net -a division of Pae
13609 290 332 Choice One Communications Inc
701 282 988 UUNET Technologies, Inc.
18302 281 296 SK Global co., Ltd
22773 275 543 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1605 13:1 15:10 16:3
17:3 18:3 20:27 24:559 30:3 32:66
38:158 40:54 44:3 47:2 52:4 55:1
56:3 57:40 58:93 59:68 60:140 61:744
62:760 63:1887 64:2890 65:2077 66:2932 67:634
68:651 69:1231 70:200 71:26 72:394 80:632
81:562 82:472 83:306 84:270 85:340 86:126
87:56 125:10 128:157 129:169 130:96 131:294
132:33 133:1 134:146 135:43 136:159 137:66
138:164 139:63 140:458 141:141 142:148 143:142
144:210 145:34 146:301 147:112 148:301 149:186
150:109 151:73 152:113 153:93 154:5 155:138
156:80 157:112 158:165 159:170 160:85 161:75
162:236 163:145 164:191 165:187 166:152 167:251
168:428 169:143 170:308 171:8 190:1 192:5713
193:3311 194:2410 195:1557 196:671 198:3879 199:3227
200:4176 201:347 202:6123 203:6408 204:3807 205:2050
206:2442 207:2849 208:2033 209:3395 210:1679 211:815
212:1210 213:1382 214:301 215:39 216:3718 217:1134
218:220 219:131 220:496 221:286 222:125
End of report
