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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 13 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171585
Prefixes after maximum aggregation: 97760
Unique aggregates announced to Internet: 82979
Total ASes present in the Internet Routing Table: 20659
Origin-only ASes present in the Internet Routing Table: 17979
Origin ASes announcing only one prefix: 8517
Transit ASes present in the Internet Routing Table: 2680
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: 25
Prefixes from unregistered ASNs in the Routing Table: 23
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1431368256
Equivalent to 85 /8s, 80 /16s and 242 /24s
Percentage of available address space announced: 38.6
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81754
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35674
Total APNIC prefixes after maximum aggregation: 15682
Prefixes being announced from the APNIC address blocks: 33446
Unique aggregates announced from the APNIC address blocks: 16602
APNIC Region origin ASes present in the Internet Routing Table: 2383
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 358
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 202540928
Equivalent to 12 /8s, 18 /16s and 135 /24s
Percentage of available APNIC address space announced: 75.2
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: 91128
Total ARIN prefixes after maximum aggregation: 55393
Prefixes being announced from the ARIN address blocks: 71191
Unique aggregates announced from the ARIN address blocks: 26366
ARIN Region origin ASes present in the Internet Routing Table: 10249
ARIN Region origin ASes announcing only one prefix: 3780
ARIN Region transit ASes present in the Internet Routing Table: 951
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 271801600
Equivalent to 16 /8s, 51 /16s and 93 /24s
Percentage of available ARIN address space announced: 67.5
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: 33327
Total RIPE prefixes after maximum aggregation: 22628
Prefixes being announced from the RIPE address blocks: 30347
Unique aggregates announced from the RIPE address blocks: 20340
RIPE Region origin ASes present in the Internet Routing Table: 7182
RIPE Region origin ASes announcing only one prefix: 3790
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: 23
Number of RIPE addresses announced to Internet: 219714304
Equivalent to 13 /8s, 24 /16s and 147 /24s
Percentage of available RIPE address space announced: 65.5
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, 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: 9678
Total LACNIC prefixes after maximum aggregation: 3237
Prefixes being announced from the LACNIC address blocks: 8010
Unique aggregates announced from the LACNIC address blocks: 4714
LACNIC Region origin ASes present in the Internet Routing Table: 643
LACNIC Region origin ASes announcing only one prefix: 204
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22284544
Equivalent to 1 /8s, 84 /16s and 9 /24s
Percentage of available LACNIC address space announced: 33.2
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: 1751
Total AfriNIC prefixes after maximum aggregation: 820
Prefixes being announced from the AfriNIC address blocks: 1064
Unique aggregates announced from the AfriNIC address blocks: 793
AfriNIC Region origin ASes present in the Internet Routing Table: 140
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2838016
Equivalent to 0 /8s, 43 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1005 6236 210 CHINANET-BACKBONE
9583 805 77 12 Sify Limited
1221 749 1326 512 Telstra Pty Ltd
4755 717 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 618 3927 290 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 348 211 57 BHARTI BT INTERNET LTD.
2907 337 1763 314 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
17557 330 39 162 Pakistan Telecom
4802 319 70 158 Wantree Development
7474 319 257 217 SingTel Optus Pty Ltd
18302 293 109 168 SK Global co., Ltd
9837 274 79 174 Powertel Ltd
1659 270 956 35 Tiawan Academic Network (TANe
17974 270 65 14 PT TELEKOMUNIKASI INDONESIA
18101 263 68 18 Reliance Infocom Ltd Internet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1521 6364 994 AT&T WorldNet Services
4323 1186 705 228 Time Warner Telecom
721 1076 21938 309 DLA Systems Automation Center
174 1058 5848 992 Cogent Communications
701 1002 8121 839 UUNET Technologies, Inc.
6197 946 399 489 BellSouth Network Solutions,
2386 931 514 692 AT&T Data Communications Serv
18566 860 240 7 Covad Communications
1239 858 2852 603 Sprint
209 640 3572 505 Qwest
20115 628 512 332 Charter Communications
3602 561 131 109 Sprint Canada, Inc.
22773 548 1356 32 Cox Communications, Inc.
3561 546 2410 419 Savvis
3356 544 10640 418 Level 3 Communications, LLC
5668 481 147 24 CenturyTel Internet Holdings,
19262 476 1429 121 Verizon Global Networks
6198 473 417 228 BellSouth Network Solutions,
7132 469 5059 400 SBC Internet Services
852 436 1092 382 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 303 1081 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 268 475 263 COLT Telecommunications
680 243 2040 239 DFN-IP service G-WiN
8708 239 274 224 Romania Data Systems S.A.
3246 226 474 219 Song Networks
1257 194 712 172 SWIPnet Swedish IP Network
6746 192 50 166 Dynamic Network Technologies,
5515 181 777 127 Sonera Solution Autonomous Sy
3269 178 1638 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 171 289 143 BT Ignite European Backbone
8866 159 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 157 185 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
1273 137 177 95 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 404 650 171 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 202 22 19 Keytech SA
19632 195 14 5 Metropolis Intercom S.A.
6147 190 116 23 Telefonica Del Peru
22047 169 128 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
19169 122 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 119 52 9 Mega Cable S.A. de C.V.
6503 113 148 73 AVANTEL, S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
21826 108 14 17 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 88 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 708 226 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 116 44 7 TEDATA
2018 95 295 86 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
5713 38 149 33 Telkom SA Ltd
12455 35 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 19 5 9 MAURITIUS TELECOM
15804 18 2 1 AS of The Way Out Internet So
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1186 958 Time Warner Telecom
18566 860 853 Covad Communications
4134 1005 795 CHINANET-BACKBONE
9583 805 793 Sify Limited
721 1076 767 DLA Systems Automation Center
4755 717 650 Videsh Sanchar Nigam Ltd. Aut
22773 548 516 Cox Communications, Inc.
6197 946 457 BellSouth Network Solutions,
5668 481 457 CenturyTel Internet Holdings,
3602 561 452 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 470 370 Softbank BB Corp.
19262 476 355 Verizon Global Networks
6467 402 354 E.Spire Communications, Inc.
11492 343 333 Cable One
4766 618 328 Korea Telecom (KIX)
17488 336 327 Hathway IP Over Cable Interne
15270 342 317 PaeTec.net -a division of Pae
9443 392 314 Primus Telecommunications
812 339 314 Rogers WAVE
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
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
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
65004 PRIVATE 200.4.7.0/24 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 /8:17 /9:5 /10:8 /11:17 /12:80
/13:181 /14:329 /15:642 /16:8548 /17:2821 /18:4754
/19:10838 /20:11916 /21:9935 /22:13233 /23:14220 /24:93133
/25:333 /26:282 /27:177 /28:32 /29:12 /30:38
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 844 860 Covad Communications
6197 773 946 BellSouth Network Solutions,
7018 739 1521 AT&T WorldNet Services
2386 643 931 AT&T Data Communications Serv
9583 628 805 Sify Limited
4323 565 1186 Time Warner Telecom
4766 426 618 Korea Telecom (KIX)
5668 386 481 CenturyTel Internet Holdings,
702 385 608 UUNET - Commercial IP service
1239 368 858 Sprint
7011 367 426 Citizens Utilities
19916 363 369 OLM LLC
6198 346 473 BellSouth Network Solutions,
11492 335 343 Cable One
6517 319 345 Yipes Communications, Inc.
15270 315 342 PaeTec.net -a division of Pae
13609 289 332 Choice One Communications Inc
701 284 1002 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
22773 278 548 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:25 12:1600 13:1 15:11 16:3
17:3 18:3 20:31 24:560 30:3 32:67
38:162 40:54 44:3 47:2 52:4 55:1
56:3 57:36 58:95 59:69 60:140 61:759
62:787 63:1888 64:2902 65:2078 66:2966 67:635
68:659 69:1251 70:209 71:27 72:410 80:639
81:575 82:495 83:293 84:278 85:338 86:130
87:58 125:12 128:153 129:168 130:96 131:295
132:35 133:1 134:146 135:43 136:149 137:66
138:165 139:63 140:502 141:141 142:148 143:142
144:219 145:34 146:302 147:112 148:280 149:189
150:107 151:70 152:112 153:93 154:5 155:140
156:80 157:113 158:164 159:173 160:87 161:76
162:236 163:148 164:191 165:177 166:151 167:259
168:441 169:143 170:309 171:8 190:1 192:5722
193:3315 194:2424 195:1563 196:653 198:3887 199:3231
200:4246 201:354 202:6121 203:6445 204:3819 205:2051
206:2446 207:2853 208:2027 209:3400 210:1696 211:828
212:1217 213:1357 214:308 215:39 216:3715 217:1132
218:225 219:132 220:508 221:289 222:129
End of report
