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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 07 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/07/0400
Analysis Summary
----------------
BGP routing table entries examined: 219534
Prefixes after maximum aggregation: 116969
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 106634
Total ASes present in the Internet Routing Table: 25089
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21859
Origin ASes announcing only one prefix: 10573
Transit ASes present in the Internet Routing Table: 3230
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (15941) 12
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 6
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: 1716104128
Equivalent to 102 /8s, 73 /16s and 171 /24s
Percentage of available address space announced: 46.3
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 114833
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50583
Total APNIC prefixes after maximum aggregation: 20205
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47568
Unique aggregates announced from the APNIC address blocks: 21235
APNIC Region origin ASes present in the Internet Routing Table: 2935
APNIC Prefixes per ASN: 16.21
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 439
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 292753088
Equivalent to 17 /8s, 115 /16s and 14 /24s
Percentage of available APNIC address space announced: 72.5
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: 106130
Total ARIN prefixes after maximum aggregation: 61979
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78158
Unique aggregates announced from the ARIN address blocks: 30490
ARIN Region origin ASes present in the Internet Routing Table: 11537
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4421
ARIN Region transit ASes present in the Internet Routing Table: 1054
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 332008064
Equivalent to 19 /8s, 202 /16s and 10 /24s
Percentage of available ARIN address space announced: 73.3
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: 45301
Total RIPE prefixes after maximum aggregation: 29650
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41852
Unique aggregates announced from the RIPE address blocks: 27983
RIPE Region origin ASes present in the Internet Routing Table: 9569
RIPE Prefixes per ASN: 4.37
RIPE Region origin ASes announcing only one prefix: 5054
RIPE Region transit ASes present in the Internet Routing Table: 1529
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 304832384
Equivalent to 18 /8s, 43 /16s and 95 /24s
Percentage of available RIPE address space announced: 75.7
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: 14932
Total LACNIC prefixes after maximum aggregation: 4120
LACNIC Deaggregation factor: 3.62
Prefixes being announced from the LACNIC address blocks: 13015
Unique aggregates announced from the LACNIC address blocks: 7148
LACNIC Region origin ASes present in the Internet Routing Table: 785
LACNIC Prefixes per ASN: 16.58
LACNIC Region origin ASes announcing only one prefix: 253
LACNIC Region transit ASes present in the Internet Routing Table: 139
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 38433536
Equivalent to 2 /8s, 74 /16s and 115 /24s
Percentage of available LACNIC address space announced: 57.3
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: 2579
Total AfriNIC prefixes after maximum aggregation: 1005
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1950
Unique aggregates announced from the AfriNIC address blocks: 1195
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.32
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6058240
Equivalent to 0 /8s, 92 /16s and 113 /24s
Percentage of available AfriNIC address space announced: 18.1
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 1282 9603 274 CHINANET-BACKBONE
4755 1205 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1108 79 381 Sify Limited
9498 972 469 72 BHARTI BT INTERNET LTD.
4766 784 4943 312 Korea Telecom (KIX)
23577 777 35 705 Korea Telecom (ATM-MPLS)
17488 672 44 34 Hathway IP Over Cable Interne
7545 628 142 81 TPG Internet Pty Ltd
1221 541 1954 420 Telstra Pty Ltd
18101 534 116 27 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 799 75 China Telecom (Shanghai)
9443 453 115 74 Primus Telecommunications
7474 411 217 268 SingTel Optus Pty Ltd
17557 360 37 171 Pakistan Telecom
4802 359 86 148 Wantree Development
4837 346 4725 160 chinanet IDC center beijing n
17974 344 129 12 PT TELEKOMUNIKASI INDONESIA
2907 331 1700 302 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1495 6156 991 AT&T WorldNet Services
4323 1265 1027 362 Time Warner Telecom
2386 1132 580 753 AT&T Data Communications Serv
6478 1093 338 133 AT&T Worldnet Services
11492 1049 103 20 Cable One
6197 1034 688 503 BellSouth Network Solutions,
18566 1002 288 9 Covad Communications
174 968 6793 876 Cogent Communications
701 960 6660 732 UUNET Technologies, Inc.
20115 824 738 431 Charter Communications
1239 815 2717 580 Sprint
7011 790 226 471 Citizens Utilities
19262 769 2596 208 Verizon Global Networks
209 728 3846 582 Qwest
22773 710 1872 42 Cox Communications, Inc.
5668 600 160 17 CenturyTel Internet Holdings,
721 599 21739 270 DLA Systems Automation Center
852 589 1096 371 Telus Advanced Communications
7029 581 456 79 Alltel Information Services,
855 568 253 71 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 522 1941 416 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3301 310 1455 290 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 275 128 252 Dynamic Network Technologies,
8220 259 461 250 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 238 2254 95 France Telecom Transpac
8708 236 287 229 Romania Data Systems S.A.
3352 224 1799 33 Ibernet, Internet Access Netw
3269 214 2583 73 TELECOM ITALIA
3246 208 340 198 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 95 SC Kappa Invexim SRL
20858 196 34 4 EgyNet
1257 190 1180 168 SWIPnet Swedish IP Network
9116 189 127 35 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 184 171 89 AUCS Communications Services
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1175 1853 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 365 116 63 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 310 238 12 VTR PUNTO NET S.A.
7303 274 143 30 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 235 128 3 Cable-Wireless Panama
6147 221 166 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 191 23 13 NEWCOM AMERICAS
10620 185 53 23 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
14522 155 25 7 SatNet S.A.
21826 155 27 59 INTERCABLE
7910 153 11 31 ANDINET ON LINE
19429 151 93 41 E.T.B.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 230 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 114 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 81 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 13 24 AS Number for Telecom Algeria
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
33766 29 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
16637 24 19 23 Johnnic e-Ventures
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1205 1133 Videsh Sanchar Nigam Ltd. Aut
11492 1049 1029 Cable One
4134 1282 1008 CHINANET-BACKBONE
18566 1002 993 Covad Communications
8151 1175 964 UniNet S.A. de C.V.
6478 1093 960 AT&T Worldnet Services
4323 1265 903 Time Warner Telecom
9498 972 900 BHARTI BT INTERNET LTD.
9583 1108 727 Sify Limited
22773 710 668 Cox Communications, Inc.
17488 672 638 Hathway IP Over Cable Interne
5668 600 583 CenturyTel Internet Holdings,
19262 769 561 Verizon Global Networks
7545 628 547 TPG Internet Pty Ltd
6197 1034 531 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 534 507 Reliance Infocom Ltd Internet
7029 581 502 Alltel Information Services,
855 568 497 Canadian Research Network
4668 507 497 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
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
2.0.0.0/24 41856 Flagmanskaya Sluzhba Svyazi
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
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 /10:13 /11:34 /12:123
/13:237 /14:449 /15:863 /16:9374 /17:3836 /18:6371
/19:13456 /20:15294 /21:13821 /22:17908 /23:19187 /24:116404
/25:755 /26:819 /27:488 /28:59 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1084 1093 AT&T Worldnet Services
11492 1035 1049 Cable One
18566 984 1002 Covad Communications
9583 946 1108 Sify Limited
2386 830 1132 AT&T Data Communications Serv
7018 806 1495 AT&T WorldNet Services
6197 795 1034 BellSouth Network Solutions,
23577 763 777 Korea Telecom (ATM-MPLS)
7011 693 790 Citizens Utilities
9498 636 972 BHARTI BT INTERNET LTD.
4755 600 1205 Videsh Sanchar Nigam Ltd. Aut
4766 590 784 Korea Telecom (KIX)
19916 563 568 OLM LLC
8151 554 1175 UniNet S.A. de C.V.
4323 522 1265 Time Warner Telecom
4668 496 507 LG-EDS Systems Inc.
15270 495 528 PaeTec.net -a division of Pae
17488 493 672 Hathway IP Over Cable Interne
855 466 568 Canadian Research Network
5668 465 600 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:10 7:1 8:73 9:1 12:1803
13:1 15:19 16:3 17:3 18:8 20:37
24:924 25:1 32:53 38:305 40:60 41:128
44:1 47:4 52:4 55:2 56:3 57:25
58:390 59:340 60:272 61:930 62:969 63:1970
64:3064 65:2360 66:3263 67:806 68:637 69:1828
70:499 71:104 72:1316 73:1 74:414 75:259
76:46 77:144 80:860 81:809 82:598 83:377
84:411 85:764 86:360 87:468 88:265 89:859
90:6 91:277 97:6 116:55 121:176 122:520
123:97 124:799 125:924 128:279 129:219 130:123
131:339 132:52 133:11 134:186 135:39 136:183
137:78 138:197 139:64 140:476 141:164 142:371
143:239 144:290 145:43 146:323 147:116 148:399
149:140 150:115 151:158 152:92 153:120 154:4
155:252 156:155 157:185 158:161 159:157 160:105
161:90 162:234 163:177 164:452 165:405 166:234
167:279 168:492 169:119 170:399 171:16 172:1
189:396 190:600 192:5761 193:3803 194:3105 195:2209
196:943 198:3753 199:3300 200:4755 201:974 202:7252
203:7471 204:3951 205:2092 206:2359 207:2879 208:2666
209:3586 210:2479 211:937 212:1298 213:1456 214:397
215:41 216:4014 217:1140 218:356 219:356 220:952
221:408 222:269
End of report
