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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 27 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191375
Prefixes after maximum aggregation: 105131
Unique aggregates announced to Internet: 92806
Total ASes present in the Internet Routing Table: 22524
Origin-only ASes present in the Internet Routing Table: 19605
Origin ASes announcing only one prefix: 9404
Transit ASes present in the Internet Routing Table: 2919
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1539429640
Equivalent to 91 /8s, 193 /16s and 213 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 95012
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40902
Total APNIC prefixes after maximum aggregation: 16876
Prefixes being announced from the APNIC address blocks: 38624
Unique aggregates announced from the APNIC address blocks: 18469
APNIC Region origin ASes present in the Internet Routing Table: 2613
APNIC Region origin ASes announcing only one prefix: 749
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 230471520
Equivalent to 13 /8s, 188 /16s and 183 /24s
Percentage of available APNIC address space announced: 72.1
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, 121/8, 122/7, 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: 98339
Total ARIN prefixes after maximum aggregation: 58064
Prefixes being announced from the ARIN address blocks: 72194
Unique aggregates announced from the ARIN address blocks: 26965
ARIN Region origin ASes present in the Internet Routing Table: 10799
ARIN Region origin ASes announcing only one prefix: 4082
ARIN Region transit ASes present in the Internet Routing Table: 982
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 294704128
Equivalent to 17 /8s, 144 /16s and 212 /24s
Percentage of available ARIN address space announced: 76.4
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38283
Total RIPE prefixes after maximum aggregation: 25578
Prefixes being announced from the RIPE address blocks: 35334
Unique aggregates announced from the RIPE address blocks: 23177
RIPE Region origin ASes present in the Internet Routing Table: 8182
RIPE Region origin ASes announcing only one prefix: 4289
RIPE Region transit ASes present in the Internet Routing Table: 1353
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 261085316
Equivalent to 15 /8s, 143 /16s and 216 /24s
Percentage of available RIPE address space announced: 81.9
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11583
Total LACNIC prefixes after maximum aggregation: 3721
Prefixes being announced from the LACNIC address blocks: 9722
Unique aggregates announced from the LACNIC address blocks: 5545
LACNIC Region origin ASes present in the Internet Routing Table: 705
LACNIC Region origin ASes announcing only one prefix: 239
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27810304
Equivalent to 1 /8s, 168 /16s and 90 /24s
Percentage of available LACNIC address space announced: 41.4
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: 2266
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1525
Unique aggregates announced from the AfriNIC address blocks: 944
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4138240
Equivalent to 0 /8s, 63 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 12.3
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 1238 7261 228 CHINANET-BACKBONE
4755 943 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 899 109 15 Sify Limited
4766 688 4435 302 Korea Telecom (KIX)
9498 653 211 67 BHARTI BT INTERNET LTD.
1221 613 1668 471 Telstra Pty Ltd
7545 546 124 70 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
17557 396 31 174 Pakistan Telecom
18101 390 84 21 Reliance Infocom Ltd Internet
4802 382 81 169 Wantree Development
17974 381 129 14 PT TELEKOMUNIKASI INDONESIA
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
17849 303 23 103 Telecommunications Technology
7474 297 211 227 SingTel Optus Pty Ltd
10139 281 19 5 Meridian Telekoms
4837 277 3085 123 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1484 6264 950 AT&T WorldNet Services
4323 1318 744 263 Time Warner Telecom
721 1015 21982 311 DLA Systems Automation Center
6197 1012 630 475 BellSouth Network Solutions,
174 958 5771 895 Cogent Communications
18566 945 272 8 Covad Communications
19029 944 151 106 New Edge Networks
701 939 6753 777 UUNET Technologies, Inc.
2386 913 560 706 AT&T Data Communications Serv
1239 846 2788 598 Sprint
19262 715 2150 186 Verizon Global Networks
20115 713 619 381 Charter Communications
209 695 3683 549 Qwest
22773 668 1741 40 Cox Communications, Inc.
7011 647 217 411 Citizens Utilities
11492 639 87 22 Cable One
852 581 1084 380 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
5668 526 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 568 1951 447 UUNET - Commercial IP service
3301 312 1327 297 TeliaNet Sweden
3352 304 1643 30 Ibernet, Internet Access Netw
3320 287 3989 241 Deutsche Telekom AG
8220 274 470 262 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 239 90 214 Dynamic Network Technologies,
3246 229 462 219 Song Networks
8708 217 276 203 Romania Data Systems S.A.
24863 216 42 10 LINKdotNET AS number
3215 201 1720 96 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
8551 200 198 23 Bezeq International
30890 196 17 76 SC Kappa Invexim SRL
1257 194 741 166 SWIPnet Swedish IP Network
8866 186 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
9121 169 931 28 TTnet Autonomous System
3300 168 171 97 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 700 1099 220 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 350 110 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 176 82 24 Telecom Argentina Stet-France
6503 173 151 84 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 128 8 24 Telconet
19429 127 68 41 E.T.B.
14259 119 10 15 GTD Internet S.A.
14522 116 18 9 SatNet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
7738 104 410 20 Telecomunicacoes da Bahia S.A
5639 103 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 166 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 124 8 15 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
15475 113 84 4 Nile Online
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
12455 25 6 3 Jambonet Autonomous system
16637 24 14 22 Johnnic e-Ventures
21280 24 4 4 Swift Global Kenya Ltd.Is an
23889 23 8 11 MAURITIUS TELECOM
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1318 1055 Time Warner Telecom
4134 1238 1010 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 899 884 Sify Limited
4755 943 869 Videsh Sanchar Nigam Ltd. Aut
19029 944 838 New Edge Networks
721 1015 704 DLA Systems Automation Center
22773 668 628 Cox Communications, Inc.
11492 639 617 Cable One
9498 653 586 BHARTI BT INTERNET LTD.
6197 1012 537 BellSouth Network Solutions,
19262 715 529 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 526 503 CenturyTel Internet Holdings,
855 553 489 Canadian Research Network
8151 700 480 UniNet S.A. de C.V.
7545 546 476 TPG Internet Pty Ltd
3602 525 421 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:9 /11:28 /12:93
/13:201 /14:364 /15:713 /16:8871 /17:3261 /18:5392
/19:11776 /20:13342 /21:11655 /22:14861 /23:15961 /24:103750
/25:385 /26:290 /27:181 /28:67 /29:63 /30:52
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
19029 877 944 New Edge Networks
6197 794 1012 BellSouth Network Solutions,
7018 787 1484 AT&T WorldNet Services
9583 729 899 Sify Limited
4323 642 1318 Time Warner Telecom
2386 633 913 AT&T Data Communications Serv
11492 630 639 Cable One
19916 557 563 OLM LLC
7011 556 647 Citizens Utilities
4766 500 688 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 409 526 CenturyTel Internet Holdings,
15270 407 438 PaeTec.net -a division of Pae
1239 391 846 Sprint
9498 377 653 BHARTI BT INTERNET LTD.
4755 374 943 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
6198 353 510 BellSouth Network Solutions,
702 352 568 UUNET - Commercial IP service
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 12:1613 13:1 15:16 16:3
17:3 18:4 20:41 24:768 25:1 32:58
38:231 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:26 58:188 59:232 60:187
61:858 62:812 63:1893 64:3213 65:2200 66:3132
67:617 68:672 69:1521 70:372 71:82 72:773
74:43 75:1 80:767 81:645 82:626 83:396
84:376 85:553 86:384 87:366 88:107 89:302
121:1 122:2 123:1 124:285 125:524 128:145
129:189 130:118 131:318 132:33 133:8 134:159
135:43 136:174 137:82 138:206 139:55 140:522
141:134 142:380 143:167 144:223 145:39 146:313
147:137 148:340 149:187 150:114 151:94 152:69
153:106 154:5 155:204 156:183 157:146 158:167
159:171 160:91 161:77 162:243 163:158 164:180
165:211 166:172 167:237 168:489 169:128 170:350
171:14 183:1 190:77 192:5724 193:3356 194:2640
195:1929 196:860 198:3961 199:3218 200:4491 201:1002
202:6666 203:6986 204:3910 205:2042 206:2431 207:2919
208:2160 209:3766 210:1997 211:691 212:1256 213:1476
214:361 215:41 216:4228 217:1172 218:295 219:233
220:699 221:371 222:189
End of report
