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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 07 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 169640
Prefixes after maximum aggregation: 97088
Unique aggregates announced to Internet: 82079
Total ASes present in the Internet Routing Table: 20401
Origin-only ASes present in the Internet Routing Table: 17761
Origin ASes announcing only one prefix: 8418
Transit ASes present in the Internet Routing Table: 2640
Transit-only ASes present in the Internet Routing Table: 70
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: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1416166656
Equivalent to 84 /8s, 104 /16s and 253 /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: 80602
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35365
Total APNIC prefixes after maximum aggregation: 15786
Prefixes being announced from the APNIC address blocks: 33219
Unique aggregates announced from the APNIC address blocks: 16589
APNIC Region origin ASes present in the Internet Routing Table: 2351
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 354
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 196139776
Equivalent to 11 /8s, 176 /16s and 219 /24s
Percentage of available APNIC address space announced: 72.8
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: 90355
Total ARIN prefixes after maximum aggregation: 55013
Prefixes being announced from the ARIN address blocks: 70610
Unique aggregates announced from the ARIN address blocks: 26005
ARIN Region origin ASes present in the Internet Routing Table: 10174
ARIN Region origin ASes announcing only one prefix: 3765
ARIN Region transit ASes present in the Internet Routing Table: 947
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 264237824
Equivalent to 15 /8s, 191 /16s and 243 /24s
Percentage of available ARIN address space announced: 65.6
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: 32752
Total RIPE prefixes after maximum aggregation: 22314
Prefixes being announced from the RIPE address blocks: 29784
Unique aggregates announced from the RIPE address blocks: 20092
RIPE Region origin ASes present in the Internet Routing Table: 7043
RIPE Region origin ASes announcing only one prefix: 3720
RIPE Region transit ASes present in the Internet Routing Table: 1167
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 216943232
Equivalent to 12 /8s, 238 /16s and 74 /24s
Percentage of available RIPE address space announced: 64.7
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: 9447
Total LACNIC prefixes after maximum aggregation: 3179
Prefixes being announced from the LACNIC address blocks: 7802
Unique aggregates announced from the LACNIC address blocks: 4499
LACNIC Region origin ASes present in the Internet Routing Table: 634
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 21957376
Equivalent to 1 /8s, 79 /16s and 11 /24s
Percentage of available LACNIC address space announced: 32.7
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: 1698
Total AfriNIC prefixes after maximum aggregation: 796
Prefixes being announced from the AfriNIC address blocks: 1027
Unique aggregates announced from the AfriNIC address blocks: 788
AfriNIC Region origin ASes present in the Internet Routing Table: 136
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: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2647296
Equivalent to 0 /8s, 40 /16s and 101 /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 778 77 14 Sify Limited
1221 749 1327 517 Telstra Pty Ltd
4755 705 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 602 3927 285 Korea Telecom (KIX)
7545 519 108 73 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
2907 336 1788 313 SINET Japan
9498 336 115 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 315 257 218 SingTel Optus Pty Ltd
4802 298 53 159 Wantree Development
18302 296 109 160 SK Global co., Ltd
9837 277 79 178 Powertel Ltd
17974 264 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 262 207 UUNET - Commercial IP service
9800 244 386 65 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1511 6375 983 AT&T WorldNet Services
4323 1160 705 224 Time Warner Telecom
174 1115 5852 1019 Cogent Communications
721 1078 21922 310 DLA Systems Automation Center
701 999 8120 843 UUNET Technologies, Inc.
6197 947 503 446 BellSouth Network Solutions,
2386 900 514 672 AT&T Data Communications Serv
1239 865 2850 610 Sprint
18566 840 224 20 Covad Communications
20115 624 489 327 Charter Communications
209 622 3454 486 Qwest
3356 574 10661 446 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 552 125 106 Sprint Canada, Inc.
3561 540 2401 421 Savvis
22773 502 1352 27 Cox Communications, Inc.
5668 497 115 23 CenturyTel Internet Holdings,
6198 473 417 228 BellSouth Network Solutions,
7132 459 4949 393 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
702 596 1998 483 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 294 3232 240 Deutsche Telekom AG
8220 263 474 259 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 234 262 214 Romania Data Systems S.A.
3246 228 468 221 Song Networks
1257 198 713 176 SWIPnet Swedish IP Network
9121 195 289 41 TTnet Autonomous System
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
3269 174 1574 69 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 143 145 100 France Telecom Transpac's Tra
8551 140 122 21 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 398 650 169 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 244 84 58 Servicios Alestra S.A de C.V
6147 196 118 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 154 10 5 Telefonica del Sur S.A.
7303 144 69 16 Telecom Argentina Stet-France
11556 129 64 2 Cable-Wireless Panama
6505 122 89 86 Global One Communicaoes Ltda
19169 121 8 25 Telconet
10481 120 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
13999 109 52 9 Mega Cable S.A. de C.V.
21826 104 13 15 INTERCABLE
5639 103 12 9 Telecommunications Services o
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 264 707 221 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 77 210 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 39 3 4 UUNET Kenya
12455 32 6 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
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 1160 936 Time Warner Telecom
18566 840 820 Covad Communications
721 1078 768 DLA Systems Automation Center
4134 960 764 CHINANET-BACKBONE
9583 778 764 Sify Limited
4755 705 641 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 947 501 BellSouth Network Solutions,
22773 502 475 Cox Communications, Inc.
5668 497 474 CenturyTel Internet Holdings,
3602 552 446 Sprint Canada, Inc.
7545 519 446 TPG Internet Pty Ltd
17676 465 366 Softbank BB Corp.
6467 424 351 E.Spire Communications, Inc.
19262 450 330 Verizon Global Networks
11492 325 318 Cable One
4766 602 317 Korea Telecom (KIX)
17488 319 311 Hathway IP Over Cable Interne
9443 386 307 Primus Telecommunications
15270 333 306 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
65000 PRIVATE 195.177.123.0/24 25408 West Call Ltd carrie
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
28605 UNALLOCATED 201.20.144.0/20 4230 Embratel
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 /15:627 /16:8489 /17:2700 /18:4641
/19:10729 /20:11777 /21:9788 /22:13165 /23:14028 /24:92123
/25:333 /26:294 /27:173 /28:46 /29:23 /30:60
/31:2 /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 1511 AT&T WorldNet Services
2386 611 900 AT&T Data Communications Serv
9583 598 778 Sify Limited
4323 553 1160 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 497 CenturyTel Internet Holdings,
702 370 596 UUNET - Commercial IP service
1239 364 865 Sprint
19916 363 369 OLM LLC
7011 348 403 Citizens Utilities
6198 346 473 BellSouth Network Solutions,
11492 317 325 Cable One
6517 304 330 Yipes Communications, Inc.
15270 303 333 PaeTec.net -a division of Pae
701 286 999 UUNET Technologies, Inc.
18302 281 296 SK Global co., Ltd
6467 278 424 E.Spire Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:23 11:1 12:1574 13:1 15:9
16:2 17:3 18:3 20:22 24:1066 30:3
32:61 38:146 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:155 59:66 60:120
61:721 62:778 63:1888 64:2848 65:2065 66:2891
67:600 68:608 69:1198 70:173 71:11 72:350
80:607 81:540 82:461 83:300 84:230 85:314
86:99 87:10 128:149 129:168 130:94 131:295
132:37 133:1 134:145 135:42 136:150 137:65
138:165 139:61 140:426 141:105 142:145 143:135
144:216 145:34 146:293 147:117 148:297 149:182
150:107 151:67 152:108 153:92 154:5 155:150
156:80 157:99 158:165 159:171 160:85 161:73
162:226 163:116 164:188 165:194 166:154 167:245
168:438 169:142 170:315 171:8 190:1 192:5720
193:3278 194:2398 195:1570 196:654 198:3862 199:3286
200:4163 201:316 202:6087 203:6332 204:3775 205:2066
206:2457 207:2828 208:2033 209:3370 210:1691 211:819
212:1209 213:1341 214:292 215:39 216:3619 217:1130
218:217 219:136 220:451 221:262 222:125
End of report
