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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 08 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 169889
Prefixes after maximum aggregation: 97226
Unique aggregates announced to Internet: 82127
Total ASes present in the Internet Routing Table: 20419
Origin-only ASes present in the Internet Routing Table: 17773
Origin ASes announcing only one prefix: 8417
Transit ASes present in the Internet Routing Table: 2646
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: 20
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1417829824
Equivalent to 84 /8s, 130 /16s and 93 /24s
Percentage of available address space announced: 38.3
Percentage of allocated address space announced: 57.6
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80770
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35366
Total APNIC prefixes after maximum aggregation: 15794
Prefixes being announced from the APNIC address blocks: 33225
Unique aggregates announced from the APNIC address blocks: 16571
APNIC Region origin ASes present in the Internet Routing Table: 2354
APNIC Region origin ASes announcing only one prefix: 697
APNIC Region transit ASes present in the Internet Routing Table: 356
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 196184832
Equivalent to 11 /8s, 177 /16s and 139 /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: 90526
Total ARIN prefixes after maximum aggregation: 55102
Prefixes being announced from the ARIN address blocks: 70768
Unique aggregates announced from the ARIN address blocks: 26058
ARIN Region origin ASes present in the Internet Routing Table: 10177
ARIN Region origin ASes announcing only one prefix: 3761
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 265700608
Equivalent to 15 /8s, 214 /16s and 69 /24s
Percentage of available ARIN address space announced: 66.0
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: 32788
Total RIPE prefixes after maximum aggregation: 22344
Prefixes being announced from the RIPE address blocks: 29858
Unique aggregates announced from the RIPE address blocks: 20107
RIPE Region origin ASes present in the Internet Routing Table: 7056
RIPE Region origin ASes announcing only one prefix: 3722
RIPE Region transit ASes present in the Internet Routing Table: 1168
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 217087808
Equivalent to 12 /8s, 240 /16s and 127 /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, 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: 9447
Total LACNIC prefixes after maximum aggregation: 3180
Prefixes being announced from the LACNIC address blocks: 7804
Unique aggregates announced from the LACNIC address blocks: 4503
LACNIC Region origin ASes present in the Internet Routing Table: 634
LACNIC Region origin ASes announcing only one prefix: 196
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 21965056
Equivalent to 1 /8s, 79 /16s and 41 /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: 1738
Total AfriNIC prefixes after maximum aggregation: 806
Prefixes being announced from the AfriNIC address blocks: 1032
Unique aggregates announced from the AfriNIC address blocks: 786
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: 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: 2649600
Equivalent to 0 /8s, 40 /16s and 110 /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 961 5604 197 CHINANET-BACKBONE
9583 778 77 14 Sify Limited
1221 749 1327 517 Telstra Pty Ltd
4755 707 259 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 335 224 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 299 60 152 Wantree Development
18302 296 109 160 SK Global co., Ltd
9837 277 79 178 Powertel Ltd
17974 266 65 14 PT TELEKOMUNIKASI INDONESIA
703 251 262 205 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
701 998 8120 842 UUNET Technologies, Inc.
6197 940 386 476 BellSouth Network Solutions,
2386 900 514 672 AT&T Data Communications Serv
1239 864 2850 609 Sprint
18566 841 224 21 Covad Communications
209 625 3455 488 Qwest
20115 623 488 325 Charter Communications
3356 577 10661 447 Level 3 Communications, LLC
3602 554 125 107 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 539 2401 421 Savvis
22773 509 1352 27 Cox Communications, Inc.
5668 497 115 23 CenturyTel Internet Holdings,
6198 473 417 228 BellSouth Network Solutions,
7132 460 4949 394 SBC Internet Services
19262 451 1371 121 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 597 1998 484 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 293 3232 240 Deutsche Telekom AG
8220 263 474 259 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 233 262 214 Romania Data Systems S.A.
3246 228 468 221 Song Networks
1257 198 713 176 SWIPnet Swedish IP Network
9121 192 290 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 167 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 83 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 121 89 85 Global One Communicaoes Ltda
19169 121 8 25 Telconet
10481 120 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
13999 111 52 9 Mega Cable S.A. de C.V.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 104 13 15 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 94 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 265 708 222 The Internet Solution
5536 124 8 11 Internet Egypt Network
8452 109 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 38 3 4 UUNET Kenya
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 28 4 19 AS Number for Telecom Algeria
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1160 936 Time Warner Telecom
18566 841 820 Covad Communications
721 1078 768 DLA Systems Automation Center
4134 961 764 CHINANET-BACKBONE
9583 778 764 Sify Limited
4755 707 643 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 509 482 Cox Communications, Inc.
5668 497 474 CenturyTel Internet Holdings,
6197 940 464 BellSouth Network Solutions,
3602 554 447 Sprint Canada, Inc.
7545 519 446 TPG Internet Pty Ltd
17676 465 366 Softbank BB Corp.
6467 425 352 E.Spire Communications, Inc.
19262 451 330 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
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
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
/13:172 /14:321 /15:627 /16:8496 /17:2711 /18:4652
/19:10743 /20:11787 /21:9804 /22:13177 /23:14036 /24:92275
/25:338 /26:293 /27:174 /28:47 /29:22 /30:61
/31:2 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 826 841 Covad Communications
6197 770 940 BellSouth Network Solutions,
7018 718 1511 AT&T WorldNet Services
2386 611 900 AT&T Data Communications Serv
9583 598 778 Sify Limited
4323 552 1160 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 497 CenturyTel Internet Holdings,
702 371 597 UUNET - Commercial IP service
1239 363 864 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
701 284 998 UUNET Technologies, Inc.
18302 281 296 SK Global co., Ltd
6467 278 425 E.Spire Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 8:23 11:1 12:1573 13:1 15:9
16:2 17:3 18:3 20:22 24:1067 30:3
32:61 38:148 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:155 59:66 60:120
61:721 62:780 63:1889 64:2853 65:2067 66:2893
67:602 68:608 69:1207 70:174 71:13 72:364
80:604 81:558 82:465 83:303 84:233 85:309
86:100 87:10 128:153 129:170 130:94 131:294
132:36 133:1 134:145 135:42 136:150 137:65
138:165 139:61 140:424 141:105 142:145 143:137
144:217 145:34 146:293 147:117 148:297 149:182
150:106 151:67 152:108 153:92 154:5 155:149
156:80 157:99 158:163 159:171 160:85 161:68
162:226 163:118 164:186 165:195 166:154 167:245
168:438 169:142 170:315 171:8 190:1 192:5720
193:3283 194:2399 195:1570 196:656 198:3866 199:3300
200:4164 201:319 202:6080 203:6340 204:3779 205:2067
206:2458 207:2828 208:2034 209:3385 210:1695 211:819
212:1205 213:1342 214:293 215:39 216:3646 217:1135
218:217 219:137 220:455 221:262 222:125
End of report
