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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 15 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/15/0400
Analysis Summary
----------------
BGP routing table entries examined: 222785
Prefixes after maximum aggregation: 117861
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 108378
Total ASes present in the Internet Routing Table: 25448
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 22152
Origin ASes announcing only one prefix: 10772
Transit ASes present in the Internet Routing Table: 3296
Transit-only ASes present in the Internet Routing Table: 78
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1736432224
Equivalent to 103 /8s, 127 /16s and 218 /24s
Percentage of available address space announced: 46.8
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116770
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52119
Total APNIC prefixes after maximum aggregation: 20446
APNIC Deaggregation factor: 2.55
Prefixes being announced from the APNIC address blocks: 49059
Unique aggregates announced from the APNIC address blocks: 21574
APNIC Region origin ASes present in the Internet Routing Table: 2976
APNIC Prefixes per ASN: 16.48
APNIC Region origin ASes announcing only one prefix: 799
APNIC Region transit ASes present in the Internet Routing Table: 452
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 299709856
Equivalent to 17 /8s, 221 /16s and 53 /24s
Percentage of available APNIC address space announced: 74.2
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: 106368
Total ARIN prefixes after maximum aggregation: 62010
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78239
Unique aggregates announced from the ARIN address blocks: 30957
ARIN Region origin ASes present in the Internet Routing Table: 11623
ARIN Prefixes per ASN: 6.73
ARIN Region origin ASes announcing only one prefix: 4472
ARIN Region transit ASes present in the Internet Routing Table: 1066
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 334419072
Equivalent to 19 /8s, 238 /16s and 212 /24s
Percentage of available ARIN address space announced: 73.8
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: 46605
Total RIPE prefixes after maximum aggregation: 30167
RIPE Deaggregation factor: 1.54
Prefixes being announced from the RIPE address blocks: 43107
Unique aggregates announced from the RIPE address blocks: 28555
RIPE Region origin ASes present in the Internet Routing Table: 9771
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5183
RIPE Region transit ASes present in the Internet Routing Table: 1567
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 315203328
Equivalent to 18 /8s, 201 /16s and 159 /24s
Percentage of available RIPE address space announced: 78.3
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: 15109
Total LACNIC prefixes after maximum aggregation: 4215
LACNIC Deaggregation factor: 3.58
Prefixes being announced from the LACNIC address blocks: 13157
Unique aggregates announced from the LACNIC address blocks: 7396
LACNIC Region origin ASes present in the Internet Routing Table: 807
LACNIC Prefixes per ASN: 16.30
LACNIC Region origin ASes announcing only one prefix: 260
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 39364608
Equivalent to 2 /8s, 88 /16s and 168 /24s
Percentage of available LACNIC address space announced: 58.7
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: 2574
Total AfriNIC prefixes after maximum aggregation: 1013
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 1979
Unique aggregates announced from the AfriNIC address blocks: 1202
AfriNIC Region origin ASes present in the Internet Routing Table: 192
AfriNIC Prefixes per ASN: 10.31
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6238208
Equivalent to 0 /8s, 95 /16s and 48 /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 1289 9973 279 CHINANET-BACKBONE
4755 1228 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1101 79 395 Sify Limited
9498 1001 469 67 BHARTI BT INTERNET LTD.
4766 786 4943 312 Korea Telecom (KIX)
23577 778 35 706 Korea Telecom (ATM-MPLS)
17488 701 46 40 Hathway IP Over Cable Interne
7545 631 143 81 TPG Internet Pty Ltd
18101 558 117 35 Reliance Infocom Ltd Internet
1221 550 1954 425 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 843 80 China Telecom (Shanghai)
9443 465 121 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 408 86 147 Wantree Development
17974 370 129 12 PT TELEKOMUNIKASI INDONESIA
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 301 SINET Japan
17557 358 41 173 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6112 973 AT&T WorldNet Services
4323 1269 1033 365 Time Warner Telecom
2386 1145 597 757 AT&T Data Communications Serv
6478 1106 363 139 AT&T Worldnet Services
11492 1079 105 21 Cable One
6197 1025 707 508 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 957 6599 731 UUNET Technologies, Inc.
174 954 6779 865 Cogent Communications
7011 840 234 530 Citizens Utilities
1239 807 2731 573 Sprint
20115 802 730 428 Charter Communications
19262 776 2702 207 Verizon Global Networks
209 743 3838 579 Qwest
22773 721 1892 44 Cox Communications, Inc.
5668 605 168 18 CenturyTel Internet Holdings,
7029 599 488 80 Alltel Information Services,
852 590 1090 372 Telus Advanced Communications
855 573 253 71 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 515 1938 406 UUNET - Commercial IP service
2119 513 1075 135 Telenor Internet Access
24863 351 56 35 LINKdotNET AS number
3301 311 1471 291 TeliaNet Sweden
3320 307 6018 256 Deutsche Telekom AG
6746 279 129 255 Dynamic Network Technologies,
680 265 2044 256 DFN-IP service G-WiN
3215 249 2296 95 France Telecom Transpac
8220 248 444 240 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
5089 221 1658 53 NTL Group Limited
3269 218 2679 75 TELECOM ITALIA
3352 216 1864 37 Ibernet, Internet Access Netw
9121 209 1441 23 TTnet Autonomous System
8551 207 197 27 Bezeq International
9116 199 136 25 Goldenlines main autonomous s
1257 198 1196 176 SWIPnet Swedish IP Network
3246 196 331 186 Song Networks
12479 189 578 6 Uni2 Autonomous System
3300 181 171 88 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 831 1870 209 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 371 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 313 238 12 VTR PUNTO NET S.A.
7303 294 143 30 Telecom Argentina Stet-France
6471 272 74 33 ENTEL CHILE S.A.
14117 255 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 223 168 25 Telefonica Del Peru
6503 211 188 84 AVANTEL, S.A.
10620 202 58 10 TVCABLE BOGOTA
20299 195 23 12 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
23216 169 19 42 RAMtelecom Telecomunicaciones
14522 167 27 8 SatNet S.A.
7910 159 11 31 ANDINET ON LINE
21826 157 27 59 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 280 867 221 The Internet Solution
8452 213 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 136 84 4 Nile Online
5536 121 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
12455 34 6 3 Jambonet Autonomous system
8524 32 2 8 AUCEGYPT Autonomous System
33776 31 2 6 Starcomms Nigeria Limited
21280 25 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1228 1157 Videsh Sanchar Nigam Ltd. Aut
11492 1079 1058 Cable One
4134 1289 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1106 967 AT&T Worldnet Services
9498 1001 934 BHARTI BT INTERNET LTD.
4323 1269 904 Time Warner Telecom
9583 1101 706 Sify Limited
22773 721 677 Cox Communications, Inc.
17488 701 661 Hathway IP Over Cable Interne
8151 831 622 UniNet S.A. de C.V.
5668 605 587 CenturyTel Internet Holdings,
19262 776 569 Verizon Global Networks
7545 631 550 TPG Internet Pty Ltd
18101 558 523 Reliance Infocom Ltd Internet
7029 599 519 Alltel Information Services,
6197 1025 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
15270 545 510 PaeTec.net -a division of Pae
855 573 502 Canadian Research Network
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
65010 PRIVATE 202.83.100.0/24 9255 Singapore Telecom
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 /11:35 /12:125
/13:244 /14:463 /15:885 /16:9457 /17:4006 /18:6430
/19:13615 /20:15717 /21:14157 /22:18423 /23:19469 /24:117384
/25:786 /26:973 /27:470 /28:68 /29:10 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1096 1106 AT&T Worldnet Services
11492 1070 1079 Cable One
18566 992 1010 Covad Communications
9583 943 1101 Sify Limited
2386 844 1145 AT&T Data Communications Serv
7018 789 1471 AT&T WorldNet Services
6197 778 1025 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 742 840 Citizens Utilities
9498 671 1001 BHARTI BT INTERNET LTD.
4755 629 1228 Videsh Sanchar Nigam Ltd. Aut
4766 593 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 523 701 Hathway IP Over Cable Interne
4323 521 1269 Time Warner Telecom
15270 512 545 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
18101 474 558 Reliance Infocom Ltd Internet
855 471 573 Canadian Research Network
5668 470 605 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:81 9:1 12:1809 15:19
16:3 17:3 18:8 20:36 24:919 25:1
32:51 33:2 38:321 40:61 41:158 44:2
47:5 52:4 55:3 56:3 57:25 58:413
59:402 60:304 61:983 62:934 63:1973 64:3115
65:2353 66:3231 67:748 68:635 69:1879 70:430
71:112 72:1331 73:1 74:519 75:259 76:53
77:239 78:2 80:821 81:803 82:661 83:393
84:420 85:835 86:371 87:491 88:277 89:898
90:7 91:356 94:1 97:6 98:3 116:186
117:49 121:200 122:546 123:113 124:830 125:944
128:281 129:223 130:126 131:365 132:53 133:9
134:193 135:39 136:185 137:81 138:141 139:71
140:481 141:171 142:372 143:234 144:291 145:43
146:320 147:120 148:400 149:142 150:113 151:158
152:92 153:126 154:4 155:254 156:152 157:196
158:158 159:157 160:106 161:91 162:228 163:184
164:451 165:399 166:241 167:285 168:510 169:120
170:401 171:16 172:1 189:53 190:667 192:5770
193:3881 194:3146 195:2229 196:908 198:3756 199:3284
200:4882 201:1033 202:7388 203:7526 204:3966 205:2031
206:2340 207:2806 208:2624 209:3511 210:2446 211:952
212:1284 213:1478 214:412 215:40 216:4007 217:1144
218:357 219:381 220:975 221:409 222:262
End of report
