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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 01 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 169082
Prefixes after maximum aggregation: 97042
Unique aggregates announced to Internet: 81780
Total ASes present in the Internet Routing Table: 20373
Origin-only ASes present in the Internet Routing Table: 17745
Origin ASes announcing only one prefix: 8399
Transit ASes present in the Internet Routing Table: 2628
Transit-only ASes present in the Internet Routing Table: 69
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: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1414394624
Equivalent to 84 /8s, 77 /16s and 243 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 57.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80301
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35079
Total APNIC prefixes after maximum aggregation: 15822
Prefixes being announced from the APNIC address blocks: 32951
Unique aggregates announced from the APNIC address blocks: 16516
APNIC Region origin ASes present in the Internet Routing Table: 2346
APNIC Region origin ASes announcing only one prefix: 697
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: 196023552
Equivalent to 11 /8s, 175 /16s and 21 /24s
Percentage of available APNIC address space announced: 72.7
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: 90215
Total ARIN prefixes after maximum aggregation: 54959
Prefixes being announced from the ARIN address blocks: 70567
Unique aggregates announced from the ARIN address blocks: 25937
ARIN Region origin ASes present in the Internet Routing Table: 10154
ARIN Region origin ASes announcing only one prefix: 3749
ARIN Region transit ASes present in the Internet Routing Table: 941
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 263146240
Equivalent to 15 /8s, 175 /16s and 75 /24s
Percentage of available ARIN address space announced: 65.4
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: 32683
Total RIPE prefixes after maximum aggregation: 22298
Prefixes being announced from the RIPE address blocks: 29723
Unique aggregates announced from the RIPE address blocks: 20040
RIPE Region origin ASes present in the Internet Routing Table: 7041
RIPE Region origin ASes announcing only one prefix: 3715
RIPE Region transit ASes present in the Internet Routing Table: 1166
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 216798720
Equivalent to 12 /8s, 236 /16s and 22 /24s
Percentage of available RIPE address space announced: 64.6
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: 9391
Total LACNIC prefixes after maximum aggregation: 3172
Prefixes being announced from the LACNIC address blocks: 7744
Unique aggregates announced from the LACNIC address blocks: 4455
LACNIC Region origin ASes present in the Internet Routing Table: 635
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 118
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 21903360
Equivalent to 1 /8s, 78 /16s and 56 /24s
Percentage of available LACNIC address space announced: 32.6
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: 1691
Total AfriNIC prefixes after maximum aggregation: 791
Prefixes being announced from the AfriNIC address blocks: 1028
Unique aggregates announced from the AfriNIC address blocks: 787
AfriNIC Region origin ASes present in the Internet Routing Table: 135
AfriNIC Region origin ASes announcing only one prefix: 41
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2647040
Equivalent to 0 /8s, 40 /16s and 100 /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 960 5596 196 CHINANET-BACKBONE
9583 781 77 14 Sify Limited
1221 748 1327 518 Telstra Pty Ltd
4755 700 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 602 3927 285 Korea Telecom (KIX)
7545 518 108 73 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
2907 337 1788 314 SINET Japan
9498 337 115 59 BHARTI BT INTERNET LTD.
9929 334 224 46 China Netcom Corp.
17557 325 23 153 Pakistan Telecom
17488 319 19 8 Hathway IP Over Cable Interne
7474 317 257 220 SingTel Optus Pty Ltd
4802 298 53 159 Wantree Development
18302 296 109 160 SK Global co., Ltd
9837 273 79 176 Powertel Ltd
17974 265 65 14 PT TELEKOMUNIKASI INDONESIA
703 258 262 208 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 1510 6374 979 AT&T WorldNet Services
4323 1157 704 221 Time Warner Telecom
174 1115 5852 1020 Cogent Communications
721 1078 21922 310 DLA Systems Automation Center
701 1005 8153 852 UUNET Technologies, Inc.
6197 947 503 446 BellSouth Network Solutions,
2386 897 512 667 AT&T Data Communications Serv
1239 867 2851 612 Sprint
18566 840 224 20 Covad Communications
209 625 3454 489 Qwest
20115 623 487 327 Charter Communications
3356 573 10661 444 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 553 125 106 Sprint Canada, Inc.
3561 541 2417 422 Savvis
22773 503 1352 27 Cox Communications, Inc.
5668 498 115 23 CenturyTel Internet Holdings,
6198 470 417 228 BellSouth Network Solutions,
7132 454 4947 388 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
702 590 2000 481 UUNET - Commercial IP service
3301 297 1081 283 TeliaNet Sweden
3320 290 3232 239 Deutsche Telekom AG
8220 263 474 259 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 232 261 213 Romania Data Systems S.A.
3246 229 469 222 Song Networks
1257 201 712 175 SWIPnet Swedish IP Network
9121 184 287 40 TTnet Autonomous System
6746 182 50 158 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
786 174 1794 174 The JANET IP Service
3269 172 1558 68 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 155 184 90 AUCS Communications 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 395 650 167 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 242 83 57 Servicios Alestra S.A de C.V
6147 194 110 21 Telefonica Del Peru
11664 191 20 23 Keytech SA
19632 173 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 152 9 5 Telefonica del Sur S.A.
7303 143 68 15 Telecom Argentina Stet-France
11556 131 64 3 Cable-Wireless Panama
6505 122 89 86 Global One Communicaoes Ltda
19169 121 8 25 Telconet
10481 120 48 8 Prima S.A.
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
13999 108 52 9 Mega Cable S.A. de C.V.
5639 103 12 9 Telecommunications Services o
21826 103 13 15 INTERCABLE
11311 97 8 14 Sinectis S.A.
23216 95 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 264 693 222 The Internet Solution
5536 121 8 14 Internet Egypt Network
8452 106 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 88 84 4 Nile Online
2905 76 210 69 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 43 149 33 Telkom SA Ltd
9129 38 3 4 UUNET Kenya
12455 31 5 6 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 3 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 21 1 12 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
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 1157 936 Time Warner Telecom
18566 840 820 Covad Communications
721 1078 768 DLA Systems Automation Center
9583 781 767 Sify Limited
4134 960 764 CHINANET-BACKBONE
4755 700 636 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 947 501 BellSouth Network Solutions,
22773 503 476 Cox Communications, Inc.
5668 498 475 CenturyTel Internet Holdings,
3602 553 447 Sprint Canada, Inc.
7545 518 445 TPG Internet Pty Ltd
17676 465 366 Softbank BB Corp.
6467 428 355 E.Spire Communications, Inc.
19262 450 330 Verizon Global Networks
4766 602 317 Korea Telecom (KIX)
11492 324 317 Cable One
17488 319 311 Hathway IP Over Cable Interne
9443 386 307 Primus Telecommunications
15270 332 305 PaeTec.net -a division of Pae
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
65230 PRIVATE 86.104.116.0/24 34050 Fiber Net Communicat
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
65500 PRIVATE 211.158.36.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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 /12:77
/13:171 /14:320 /15:620 /16:8474 /17:2707 /18:4603
/19:10677 /20:11669 /21:9760 /22:13147 /23:14050 /24:91790
/25:327 /26:312 /27:174 /28:46 /29:22 /30:61
/31:1 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 825 840 Covad Communications
6197 770 947 BellSouth Network Solutions,
7018 716 1510 AT&T WorldNet Services
2386 608 897 AT&T Data Communications Serv
9583 602 781 Sify Limited
4323 554 1157 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 498 CenturyTel Internet Holdings,
1239 365 867 Sprint
19916 364 370 OLM LLC
702 363 590 UUNET - Commercial IP service
7011 346 401 Citizens Utilities
6198 343 470 BellSouth Network Solutions,
11492 316 324 Cable One
6517 303 329 Yipes Communications, Inc.
15270 302 332 PaeTec.net -a division of Pae
701 285 1005 UUNET Technologies, Inc.
6467 282 428 E.Spire Communications, Inc.
18302 281 296 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 11:1 12:1575 13:1 15:9
16:2 17:3 18:3 20:22 24:1065 30:3
32:61 33:1 38:145 40:56 44:4 47:2
52:4 55:1 56:3 57:23 58:155 59:63
60:119 61:700 62:765 63:1887 64:2836 65:2070
66:2888 67:597 68:573 69:1167 70:172 71:12
72:348 80:612 81:535 82:464 83:301 84:227
85:298 86:93 87:9 128:144 129:168 130:95
131:292 132:37 133:1 134:143 135:42 136:151
137:65 138:165 139:61 140:374 141:105 142:145
143:135 144:212 145:34 146:289 147:115 148:298
149:182 150:107 151:61 152:108 153:88 154:5
155:144 156:80 157:96 158:167 159:170 160:85
161:72 162:221 163:112 164:188 165:195 166:153
167:247 168:438 169:142 170:317 171:8 190:1
192:5720 193:3272 194:2403 195:1573 196:653 198:3856
199:3284 200:4155 201:281 202:6057 203:6371 204:3764
205:2065 206:2457 207:2824 208:2030 209:3338 210:1686
211:796 212:1210 213:1339 214:288 215:35 216:3674
217:1121 218:216 219:136 220:442 221:258 222:123
End of report
