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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 08 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/08/0400
Analysis Summary
----------------
BGP routing table entries examined: 223298
Prefixes after maximum aggregation: 118349
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 108079
Total ASes present in the Internet Routing Table: 25394
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22102
Origin ASes announcing only one prefix: 10730
Transit ASes present in the Internet Routing Table: 3292
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: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1734683616
Equivalent to 103 /8s, 101 /16s and 43 /24s
Percentage of available address space announced: 46.8
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 117613
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51424
Total APNIC prefixes after maximum aggregation: 20419
APNIC Deaggregation factor: 2.52
Prefixes being announced from the APNIC address blocks: 48372
Unique aggregates announced from the APNIC address blocks: 21393
APNIC Region origin ASes present in the Internet Routing Table: 2963
APNIC Prefixes per ASN: 16.33
APNIC Region origin ASes announcing only one prefix: 791
APNIC Region transit ASes present in the Internet Routing Table: 447
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 297943200
Equivalent to 17 /8s, 194 /16s and 64 /24s
Percentage of available APNIC address space announced: 73.8
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, 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: 107692
Total ARIN prefixes after maximum aggregation: 62309
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 79596
Unique aggregates announced from the ARIN address blocks: 30841
ARIN Region origin ASes present in the Internet Routing Table: 11619
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 4471
ARIN Region transit ASes present in the Internet Routing Table: 1064
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 335043968
Equivalent to 19 /8s, 248 /16s and 93 /24s
Percentage of available ARIN address space announced: 74.0
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, 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: 46541
Total RIPE prefixes after maximum aggregation: 30371
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 43042
Unique aggregates announced from the RIPE address blocks: 28656
RIPE Region origin ASes present in the Internet Routing Table: 9746
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5157
RIPE Region transit ASes present in the Internet Routing Table: 1571
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 314611712
Equivalent to 18 /8s, 192 /16s and 152 /24s
Percentage of available RIPE address space announced: 78.1
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15054
Total LACNIC prefixes after maximum aggregation: 4231
LACNIC Deaggregation factor: 3.56
Prefixes being announced from the LACNIC address blocks: 13103
Unique aggregates announced from the LACNIC address blocks: 7346
LACNIC Region origin ASes present in the Internet Routing Table: 800
LACNIC Prefixes per ASN: 16.38
LACNIC Region origin ASes announcing only one prefix: 256
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 39256064
Equivalent to 2 /8s, 87 /16s and 0 /24s
Percentage of available LACNIC address space announced: 58.5
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: 2578
Total AfriNIC prefixes after maximum aggregation: 1011
AfriNIC Deaggregation factor: 2.55
Prefixes being announced from the AfriNIC address blocks: 1977
Unique aggregates announced from the AfriNIC address blocks: 1195
AfriNIC Region origin ASes present in the Internet Routing Table: 190
AfriNIC Prefixes per ASN: 10.41
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6224384
Equivalent to 0 /8s, 94 /16s and 250 /24s
Percentage of available AfriNIC address space announced: 18.6
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 1290 9977 280 CHINANET-BACKBONE
4755 1232 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1105 79 383 Sify Limited
9498 998 469 68 BHARTI BT INTERNET LTD.
4766 787 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 698 45 46 Hathway IP Over Cable Interne
7545 633 142 81 TPG Internet Pty Ltd
18101 556 117 35 Reliance Infocom Ltd Internet
1221 550 1954 424 Telstra Pty Ltd
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 841 79 China Telecom (Shanghai)
9443 465 121 77 Primus Telecommunications
7474 410 218 269 SingTel Optus Pty Ltd
4802 407 86 146 Wantree Development
9829 363 258 15 BSNL National Internet Backbo
2907 361 1700 302 SINET Japan
17557 359 41 172 Pakistan Telecom
4837 346 4805 160 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6128 989 AT&T WorldNet Services
4323 1274 1034 370 Time Warner Telecom
2386 1150 597 759 AT&T Data Communications Serv
6478 1105 362 125 AT&T Worldnet Services
11492 1075 105 23 Cable One
6197 1041 707 509 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
13343 985 292 58 ServiceCo LLC - Road Runner
701 960 6615 735 UUNET Technologies, Inc.
174 956 6777 867 Cogent Communications
1239 811 2731 576 Sprint
7011 804 229 484 Citizens Utilities
20115 801 726 427 Charter Communications
19262 775 2694 206 Verizon Global Networks
209 744 3834 578 Qwest
22773 717 1892 44 Cox Communications, Inc.
5668 604 160 17 CenturyTel Internet Holdings,
7385 602 169 469 Linkport Communications
7029 595 488 80 Alltel Information Services,
852 589 1090 371 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 515 1938 406 UUNET - Commercial IP service
2119 509 918 381 Telenor Internet Access
24863 351 56 35 LINKdotNET AS number
3301 311 1455 290 TeliaNet Sweden
3320 305 6018 255 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
3215 249 2296 95 France Telecom Transpac
8220 249 444 241 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
5089 221 1658 53 NTL Group Limited
3269 216 2647 74 TELECOM ITALIA
3352 216 1864 37 Ibernet, Internet Access Netw
9121 209 1441 24 TTnet Autonomous System
8551 207 197 27 Bezeq International
9116 199 136 25 Goldenlines main autonomous s
3246 197 331 187 Song Networks
1257 196 1196 174 SWIPnet Swedish IP Network
12479 188 578 6 Uni2 Autonomous System
30890 184 15 92 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 826 1855 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 367 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 316 238 12 VTR PUNTO NET S.A.
7303 289 143 30 Telecom Argentina Stet-France
6471 268 74 32 ENTEL CHILE S.A.
14117 253 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 224 168 25 Telefonica Del Peru
6503 212 188 84 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 188 54 22 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
7910 157 11 31 ANDINET ON LINE
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 60 INTERCABLE
19429 152 79 41 E.T.B.
7738 146 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 866 220 The Internet Solution
8452 229 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 136 84 4 Nile Online
5536 122 8 18 Internet Egypt Network
33783 119 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 48 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
33776 30 2 7 Starcomms Nigeria Limited
21280 27 4 4 Swift Global Kenya Ltd.Is an
12455 26 6 3 Jambonet Autonomous system
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1232 1161 Videsh Sanchar Nigam Ltd. Aut
11492 1075 1052 Cable One
4134 1290 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1105 980 AT&T Worldnet Services
9498 998 930 BHARTI BT INTERNET LTD.
13343 985 927 ServiceCo LLC - Road Runner
4323 1274 904 Time Warner Telecom
9583 1105 722 Sify Limited
22773 717 673 Cox Communications, Inc.
17488 698 652 Hathway IP Over Cable Interne
8151 826 616 UniNet S.A. de C.V.
5668 604 587 CenturyTel Internet Holdings,
19262 775 569 Verizon Global Networks
7545 633 552 TPG Internet Pty Ltd
6197 1041 532 BellSouth Network Solutions,
18101 556 521 Reliance Infocom Ltd Internet
19916 568 517 OLM LLC
7029 595 515 Alltel Information Services,
15270 544 509 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65019 PRIVATE 63.138.117.0/24 19034 Norcom Networks Corp
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65001 PRIVATE 82.213.31.0/24 12975 PALTEL Autonomous Sy
64512 PRIVATE 193.224.185.0/24 2547 Budapest University
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
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
94.110.196.0/24 21161 Bechtle Autonomous System
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
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 /8:19 /9:9 /10:15 /11:34 /12:126
/13:243 /14:454 /15:878 /16:9430 /17:3991 /18:6387
/19:13549 /20:15586 /21:14276 /22:18572 /23:19838 /24:117704
/25:783 /26:824 /27:476 /28:68 /29:10 /30:13
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1095 1105 AT&T Worldnet Services
11492 1066 1075 Cable One
18566 992 1010 Covad Communications
9583 945 1105 Sify Limited
13343 886 985 ServiceCo LLC - Road Runner
2386 851 1150 AT&T Data Communications Serv
7018 810 1498 AT&T WorldNet Services
6197 795 1041 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 705 804 Citizens Utilities
9498 667 998 BHARTI BT INTERNET LTD.
4755 626 1232 Videsh Sanchar Nigam Ltd. Aut
4766 594 787 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 521 1274 Time Warner Telecom
17488 519 698 Hathway IP Over Cable Interne
15270 511 544 PaeTec.net -a division of Pae
4668 497 507 LG-EDS Systems Inc.
18101 472 556 Reliance Infocom Ltd Internet
5668 469 604 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:81 9:1 12:1808 15:19
16:3 17:3 18:8 20:38 24:1006 25:1
32:51 33:2 38:320 40:61 41:155 44:2
47:5 52:4 55:3 56:3 57:24 58:416
59:403 60:302 61:970 62:919 63:1971 64:3114
65:2370 66:3240 67:794 68:673 69:1880 70:529
71:145 72:1443 73:1 74:497 75:270 76:50
77:235 78:2 80:824 81:806 82:651 83:386
84:419 85:823 86:341 87:468 88:280 89:895
90:7 91:349 94:1 97:17 98:3 116:107
121:160 122:541 123:108 124:825 125:944 128:280
129:225 130:135 131:366 132:52 133:9 134:193
135:38 136:185 137:81 138:142 139:70 140:479
141:170 142:370 143:233 144:292 145:43 146:319
147:122 148:401 149:144 150:115 151:158 152:91
153:125 154:4 155:249 156:152 157:186 158:158
159:158 160:107 161:92 162:228 163:182 164:448
165:395 166:241 167:285 168:505 169:120 170:404
171:16 172:1 189:59 190:660 192:5774 193:3888
194:3141 195:2240 196:916 198:3758 199:3265 200:4867
201:1029 202:7346 203:7508 204:3973 205:2028 206:2352
207:2839 208:2715 209:3577 210:2469 211:963 212:1314
213:1474 214:408 215:34 216:4038 217:1146 218:356
219:381 220:964 221:404 222:262
End of report
