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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 19 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 212405
Prefixes after maximum aggregation: 114147
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 103580
Total ASes present in the Internet Routing Table: 24372
Origin-only ASes present in the Internet Routing Table: 21224
Origin ASes announcing only one prefix: 10248
Transit ASes present in the Internet Routing Table: 3148
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1685211884
Equivalent to 100 /8s, 114 /16s and 74 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 109598
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47988
Total APNIC prefixes after maximum aggregation: 19277
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 45087
Unique aggregates announced from the APNIC address blocks: 20390
APNIC Region origin ASes present in the Internet Routing Table: 2856
APNIC Region origin ASes announcing only one prefix: 788
APNIC Region transit ASes present in the Internet Routing Table: 417
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 290789472
Equivalent to 17 /8s, 85 /16s and 24 /24s
Percentage of available APNIC address space announced: 72.0
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, 116/6, 120/6, 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: 103919
Total ARIN prefixes after maximum aggregation: 61199
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 76011
Unique aggregates announced from the ARIN address blocks: 29465
ARIN Region origin ASes present in the Internet Routing Table: 11338
ARIN Region origin ASes announcing only one prefix: 4338
ARIN Region transit ASes present in the Internet Routing Table: 1052
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 318761600
Equivalent to 18 /8s, 255 /16s and 234 /24s
Percentage of available ARIN address space announced: 70.4
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 43894
Total RIPE prefixes after maximum aggregation: 28649
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40586
Unique aggregates announced from the RIPE address blocks: 27074
RIPE Region origin ASes present in the Internet Routing Table: 9162
RIPE Region origin ASes announcing only one prefix: 4818
RIPE Region transit ASes present in the Internet Routing Table: 1481
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 290958084
Equivalent to 17 /8s, 87 /16s and 171 /24s
Percentage of available RIPE address space announced: 78.8
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 14023
Total LACNIC prefixes after maximum aggregation: 4055
LACNIC Deaggregation factor: 3.46
Prefixes being announced from the LACNIC address blocks: 12096
Unique aggregates announced from the LACNIC address blocks: 7003
LACNIC Region origin ASes present in the Internet Routing Table: 760
LACNIC Region origin ASes announcing only one prefix: 246
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37662976
Equivalent to 2 /8s, 62 /16s and 177 /24s
Percentage of available LACNIC address space announced: 56.1
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: 2577
Total AfriNIC prefixes after maximum aggregation: 965
AfriNIC Deaggregation factor: 2.67
Prefixes being announced from the AfriNIC address blocks: 1881
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 180
AfriNIC Region origin ASes announcing only one prefix: 57
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5409280
Equivalent to 0 /8s, 82 /16s and 138 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1275 8718 277 CHINANET-BACKBONE
4755 1114 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1065 77 375 Sify Limited
9498 953 467 66 BHARTI BT INTERNET LTD.
23577 779 35 707 Korea Telecom (ATM-MPLS)
4766 766 4944 310 Korea Telecom (KIX)
17488 598 39 24 Hathway IP Over Cable Interne
7545 587 142 77 TPG Internet Pty Ltd
1221 579 1686 441 Telstra Pty Ltd
18101 522 103 23 Reliance Infocom Ltd Internet
17676 502 10935 65 Softbank BB Corp.
4812 498 763 72 China Telecom (Shanghai)
4668 461 67 13 LG-EDS Systems Inc.
9443 443 111 75 Primus Telecommunications
7474 380 215 257 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 353 34 169 Pakistan Telecom
17974 346 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1490 6124 977 AT&T WorldNet Services
4323 1299 885 508 Time Warner Telecom
6478 1132 454 195 AT&T Worldnet Services
2386 1108 570 733 AT&T Data Communications Serv
6197 1015 651 497 BellSouth Network Solutions,
18566 991 288 9 Covad Communications
11492 960 100 18 Cable One
701 943 6696 750 UUNET Technologies, Inc.
174 937 6792 864 Cogent Communications
1239 818 2729 574 Sprint
20115 806 707 416 Charter Communications
7011 786 227 475 Citizens Utilities
19262 755 2591 178 Verizon Global Networks
22773 728 1872 41 Cox Communications, Inc.
209 711 3742 567 Qwest
721 638 21739 271 DLA Systems Automation Center
852 604 1090 391 Telus Advanced Communications
5668 575 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 566 250 70 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1895 424 UUNET - Commercial IP service
24863 326 45 25 LINKdotNET AS number
3301 315 1199 290 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
8220 270 471 261 COLT Telecommunications
6746 267 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 241 284 227 Romania Data Systems S.A.
3215 238 2224 92 France Telecom Transpac
1257 223 1116 172 SWIPnet Swedish IP Network
5416 215 14 15 BATELCO-BH
3269 213 2423 71 TELECOM ITALIA
3246 208 355 197 Song Networks
30890 205 17 97 SC Kappa Invexim SRL
8551 203 196 28 Bezeq International
3352 200 1783 33 Ibernet, Internet Access Netw
20858 197 34 3 EgyNet
3300 182 171 90 AUCS Communications Services
12479 177 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1018 2094 212 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 347 108 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 253 74 30 ENTEL CHILE S.A.
7303 248 142 28 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 229 182 20 Telefonica Del Peru
6503 204 173 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 156 27 56 INTERCABLE
7910 152 11 32 ANDINET ON LINE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 143 9 25 Telconet
19429 143 88 35 E.T.B.
20299 141 18 21 NEWCOM AMERICAS
14522 140 22 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 244 60 6 TEDATA
15475 155 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 111 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 64 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 53 16 13 MAURITIUS TELECOM
5713 43 294 34 Telkom SA Ltd
33774 42 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
33776 27 2 5 Starcomms Nigeria Limited
12455 26 6 3 Jambonet Autonomous system
21280 26 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1114 1037 Videsh Sanchar Nigam Ltd. Aut
4134 1275 998 CHINANET-BACKBONE
18566 991 982 Covad Communications
11492 960 942 Cable One
6478 1132 937 AT&T Worldnet Services
9498 953 887 BHARTI BT INTERNET LTD.
8151 1018 806 UniNet S.A. de C.V.
4323 1299 791 Time Warner Telecom
9583 1065 690 Sify Limited
22773 728 687 Cox Communications, Inc.
19262 755 577 Verizon Global Networks
17488 598 574 Hathway IP Over Cable Interne
5668 575 559 CenturyTel Internet Holdings,
6197 1015 518 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 587 510 TPG Internet Pty Ltd
18101 522 499 Reliance Infocom Ltd Internet
855 566 496 Canadian Research Network
15270 507 473 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65014 PRIVATE 66.160.129.0/24 6939 Hurricane Electric
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
172.33.1.0/24 7018 AT&T WorldNet Services
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /8:20 /9:9 /10:12 /11:33 /12:117
/13:226 /14:426 /15:823 /16:9234 /17:3727 /18:6151
/19:13143 /20:14858 /21:13400 /22:17205 /23:18379 /24:112736
/25:713 /26:510 /27:433 /28:68 /29:44 /30:105
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1077 1132 AT&T Worldnet Services
18566 973 991 Covad Communications
11492 946 960 Cable One
9583 901 1065 Sify Limited
2386 832 1108 AT&T Data Communications Serv
7018 809 1490 AT&T WorldNet Services
6197 794 1015 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 685 786 Citizens Utilities
9498 607 953 BHARTI BT INTERNET LTD.
4766 573 766 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 538 1299 Time Warner Telecom
4755 522 1114 Videsh Sanchar Nigam Ltd. Aut
15270 475 507 PaeTec.net -a division of Pae
855 465 566 Canadian Research Network
4668 453 461 LG-EDS Systems Inc.
18101 453 522 Reliance Infocom Ltd Internet
5668 445 575 CenturyTel Internet Holdings,
17488 420 598 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:62 9:1 12:1791 13:1
15:16 16:3 17:3 18:5 20:36 24:891
25:1 32:53 38:283 40:57 41:89 44:2
47:7 52:4 55:1 56:3 57:25 58:302
59:388 60:211 61:940 62:1025 63:1914 64:3205
65:2313 66:3127 67:721 68:650 69:1726 70:449
71:98 72:1213 73:1 74:166 75:79 76:1
77:30 80:843 81:779 82:657 83:365 84:544
85:724 86:428 87:488 88:239 89:799 90:3
91:171 97:1 116:1 117:1 118:1 119:1
120:1 121:135 122:138 123:38 124:570 125:794
128:306 129:219 130:130 131:340 132:49 133:9
134:183 135:42 136:175 137:112 138:195 139:52
140:504 141:140 142:367 143:212 144:271 145:43
146:315 147:146 148:373 149:189 150:114 151:116
152:94 153:119 154:5 155:247 156:151 157:174
158:169 159:149 160:95 161:86 162:228 163:163
164:446 165:379 166:246 167:281 168:501 169:120
170:389 171:15 172:1 189:165 190:416 192:5740
193:3718 194:2968 195:2210 196:956 198:3719 199:3273
200:4631 201:980 202:7181 203:7349 204:3953 205:2063
206:2382 207:2837 208:2448 209:3597 210:2382 211:926
212:1302 213:1430 214:406 215:39 216:4110 217:1162
218:348 219:274 220:855 221:374 222:258
End of report
Report Website: http://thyme.apnic.net
