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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 31 May, 2005
Analysis Summary
----------------
BGP routing table entries examined: 163587
Prefixes after maximum aggregation: 94810
Unique aggregates announced to Internet: 78880
Total ASes present in the Internet Routing Table: 19745
Origin-only ASes present in the Internet Routing Table: 17174
Origin ASes announcing only one prefix: 8053
Transit ASes present in the Internet Routing Table: 2571
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 24
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: 13
Number of addresses announced to Internet: 1412136000
Equivalent to 84 /8s, 43 /16s and 124 /24s
Percentage of available address space announced: 38.1
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 77002
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33560
Total APNIC prefixes after maximum aggregation: 15707
Prefixes being announced from the APNIC address blocks: 31474
Unique aggregates announced from the APNIC address blocks: 15975
APNIC Region origin ASes present in the Internet Routing Table: 2279
APNIC Region origin ASes announcing only one prefix: 665
APNIC Region transit ASes present in the Internet Routing Table: 346
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 185141632
Equivalent to 11 /8s, 9 /16s and 9 /24s
Percentage of available APNIC address space announced: 68.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575
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: 88510
Total ARIN prefixes after maximum aggregation: 53839
Prefixes being announced from the ARIN address blocks: 69153
Unique aggregates announced from the ARIN address blocks: 25305
ARIN Region origin ASes present in the Internet Routing Table: 9961
ARIN Region origin ASes announcing only one prefix: 3633
ARIN Region transit ASes present in the Internet Routing Table: 936
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 248890880
Equivalent to 14 /8s, 213 /16s and 198 /24s
Percentage of available ARIN address space announced: 70.6
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, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 31047
Total RIPE prefixes after maximum aggregation: 21436
Prefixes being announced from the RIPE address blocks: 28119
Unique aggregates announced from the RIPE address blocks: 18877
RIPE Region origin ASes present in the Internet Routing Table: 6689
RIPE Region origin ASes announcing only one prefix: 3528
RIPE Region transit ASes present in the Internet Routing Table: 1123
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 207114688
Equivalent to 12 /8s, 88 /16s and 81 /24s
Percentage of available RIPE address space announced: 72.6
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, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8812
Total LACNIC prefixes after maximum aggregation: 3060
Prefixes being announced from the LACNIC address blocks: 7220
Unique aggregates announced from the LACNIC address blocks: 4163
LACNIC Region origin ASes present in the Internet Routing Table: 622
LACNIC Region origin ASes announcing only one prefix: 192
LACNIC Region transit ASes present in the Internet Routing Table: 116
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 18946048
Equivalent to 1 /8s, 33 /16s and 24 /24s
Percentage of available LACNIC address space announced: 56.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1634
Total AfriNIC prefixes after maximum aggregation: 768
Prefixes being announced from the AfriNIC address blocks: 1004
Unique aggregates announced from the AfriNIC address blocks: 775
AfriNIC Region origin ASes present in the Internet Routing Table: 125
AfriNIC Region origin ASes announcing only one prefix: 35
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2279424
Equivalent to 0 /8s, 34 /16s and 200 /24s
Percentage of available AfriNIC address space announced: 6.8
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 910 5146 190 CHINANET-BACKBONE
1221 753 1182 541 Telstra Pty Ltd
9583 746 54 78 Sify Limited
4755 606 246 123 Videsh Sanchar Nigam Ltd. Aut
4766 595 3413 279 Korea Telecom (KIX)
7545 500 88 72 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 363 221 48 China Netcom Corp.
2907 339 1821 315 SINET Japan
10036 323 29 290 C&M Communication Co. Ltd.
17557 314 22 151 Pakistan Telecom
4808 309 250 169 CNCGROUP IP network: China169
7474 308 271 211 SingTel Optus Pty Ltd
9498 303 83 62 BHARTI BT INTERNET LTD.
4802 286 48 163 Wantree Development
18302 262 108 145 SK Global co., Ltd
17974 260 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 277 209 UUNET - Commercial IP service
2764 254 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1484 6459 965 AT&T WorldNet Services
174 1184 5610 1018 Cogent Communications
4323 1123 647 217 Time Warner Telecom
721 1106 21787 313 DLA Systems Automation Center
701 1015 8186 855 UUNET Technologies, Inc.
6197 911 381 466 BellSouth Network Solutions,
1239 890 2869 645 Sprint
2386 851 516 634 AT&T Data Communications Serv
18566 812 224 7 Covad Communications
209 651 3505 494 Qwest
20115 601 507 313 Charter Communications
3356 571 10842 435 Level 3 Communications, LLC
27364 565 43 18 Armstrong Cable Services
852 534 1095 392 Telus Advanced Communications
3561 533 2384 419 Savvis
3602 526 123 100 Sprint Canada, Inc.
5668 488 115 25 CenturyTel Internet Holdings,
22773 488 1188 23 Cox Communications, Inc.
6198 468 445 210 BellSouth Network Solutions,
7725 450 60 15 MediaOne
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 592 2001 484 UUNET - Commercial IP service
3320 302 3232 240 Deutsche Telekom AG
3301 297 1085 285 TeliaNet Sweden
8220 274 469 268 COLT Telecommunications
680 252 2041 238 DFN-IP service G-WiN
8708 229 252 213 Romania Data Systems S.A.
3246 228 490 223 Song Networks
1257 201 729 177 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 167 47 146 Dynamic Network Technologies,
3269 166 1496 69 TELECOM ITALIA
8866 166 21 11 Bulgarian Telecommunication C
719 165 340 102 LANLINK autonomous system
5400 162 285 136 BT Ignite European Backbone
3300 153 184 86 AUCS Communications Services
6830 137 513 27 UPC Distribution Services
25186 136 137 96 France Telecom Transpac's Tra
8551 134 115 23 Bezeq International
9051 131 8 30 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 372 584 148 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 220 98 53 Servicios Alestra S.A de C.V
11664 194 19 22 Keytech SA
6147 181 102 20 Telefonica Del Peru
7303 147 68 25 Telecom Argentina Stet-France
14117 136 9 5 Telefonica del Sur S.A.
6505 133 90 89 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
11556 130 64 3 Cable-Wireless Panama
19632 120 14 5 Metropolis Intercom S.A.
13999 113 52 9 Mega Cable S.A. de C.V.
18822 106 7 12 TELEFONICA MANQUEHUE
6503 103 146 73 AVANTEL, S.A.
19169 102 6 17 Telconet
10481 101 40 7 Prima S.A.
22927 97 73 25 TELEFONICA DE ARGENTINA
23216 93 24 23 RAMtelecom Telecomunicaciones
21826 92 12 18 INTERCABLE
11311 89 8 18 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 637 223 The Internet Solution
5536 119 15 17 Internet Egypt Network
2018 92 295 86 Tertiary Education Network
20928 92 16 2 Noor Advanced Technologies AS
8452 80 28 6 TEDATA
2905 73 265 67 The Internetworking Company o
24835 63 34 6 RAYA Telecom - Egypt
6713 59 54 8 Itissalat Al-MAGHRIB
9129 40 3 3 UUNET Kenya
12455 38 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 32 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
7460 17 3 5 LIA Internet Access
12258 17 3 11 Vodacom Internet Company
21491 17 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1123 906 Time Warner Telecom
18566 812 805 Covad Communications
721 1106 793 DLA Systems Automation Center
4134 910 720 CHINANET-BACKBONE
9583 746 668 Sify Limited
27364 565 547 Armstrong Cable Services
4755 606 483 Videsh Sanchar Nigam Ltd. Aut
22773 488 465 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
6197 911 445 BellSouth Network Solutions,
7725 450 435 MediaOne
7545 500 428 TPG Internet Pty Ltd
3602 526 426 Sprint Canada, Inc.
6467 424 390 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 410 333 ImpSat
4766 595 316 Korea Telecom (KIX)
9929 363 315 China Netcom Corp.
9443 370 294 Primus Telecommunications
20115 601 288 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 61.17.25.0/24 4755 Videsh Sanchar Nigam
65009 PRIVATE 69.39.0.0/20 21803 1st Class Internet S
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
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
64512 PRIVATE 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
64512 PRIVATE 200.61.62.0/23 11664 Keytech SA
64512 PRIVATE 200.80.154.0/23 11664 Keytech SA
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
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
172.32.0.0/24 7011 Citizens Utilities
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 /8:19 /9:3 /10:8 /11:15 /12:72
/13:156 /14:308 /15:600 /16:8406 /17:2561 /18:4418
/19:10319 /20:11217 /21:9103 /22:12571 /23:13606 /24:89245
/25:320 /26:273 /27:142 /28:68 /29:41 /30:81
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 796 812 Covad Communications
6197 749 911 BellSouth Network Solutions,
7018 677 1484 AT&T WorldNet Services
2386 602 851 AT&T Data Communications Serv
9583 563 746 Sify Limited
27364 556 565 Armstrong Cable Services
4323 537 1123 Time Warner Telecom
7725 423 450 MediaOne
4766 412 595 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 376 890 Sprint
702 364 592 UUNET - Commercial IP service
6198 340 468 BellSouth Network Solutions,
10036 323 323 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6517 298 321 Yipes Communications, Inc.
6467 297 424 E.Spire Communications, Inc.
9929 282 363 China Netcom Corp.
15270 272 292 PaeTec.net -a division of Pae
11456 269 309 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:14 12:1549 13:1 15:9 16:2
17:3 18:3 20:4 24:1144 30:2 32:68
33:4 38:121 40:53 44:3 47:2 52:4
55:2 56:3 57:21 58:89 59:41 60:46
61:812 62:620 63:1874 64:2790 65:2069 66:2872
67:577 68:520 69:1039 70:108 71:6 72:204
80:575 81:550 82:415 83:264 84:187 85:233
86:17 128:174 129:171 130:83 131:273 132:37
133:1 134:150 135:40 136:189 137:68 138:168
139:59 140:193 141:105 142:148 143:145 144:183
145:33 146:279 147:105 148:303 149:165 150:104
151:65 152:106 153:86 154:5 155:141 156:78
157:93 158:160 159:171 160:78 161:63 162:205
163:86 164:209 165:176 166:159 167:234 168:424
169:140 170:316 171:8 172:1 192:5714 193:3159
194:2411 195:1555 196:659 198:3932 199:3276 200:3941
201:143 202:5659 203:6220 204:3835 205:2011 206:2497
207:2855 208:2067 209:3305 210:1694 211:824 212:1197
213:1285 214:266 215:31 216:3457 217:1139 218:201
219:107 220:378 221:221 222:103
End of report
