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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 29 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/29/0400
Analysis Summary
----------------
BGP routing table entries examined: 221514
Prefixes after maximum aggregation: 117484
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 106506
Total ASes present in the Internet Routing Table: 25277
Prefixes per ASN: 8.76
Origin-only ASes present in the Internet Routing Table: 22012
Origin ASes announcing only one prefix: 10656
Transit ASes present in the Internet Routing Table: 3265
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: 24
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit 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: 1723904992
Equivalent to 102 /8s, 192 /16s and 179 /24s
Percentage of available address space announced: 46.5
Percentage of allocated address space announced: 61.6
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116168
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51173
Total APNIC prefixes after maximum aggregation: 19954
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 48137
Unique aggregates announced from the APNIC address blocks: 20270
APNIC Region origin ASes present in the Internet Routing Table: 2951
APNIC Prefixes per ASN: 16.31
APNIC Region origin ASes announcing only one prefix: 789
APNIC Region transit ASes present in the Internet Routing Table: 448
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 295700384
Equivalent to 17 /8s, 160 /16s and 7 /24s
Percentage of available APNIC address space announced: 73.2
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: 106643
Total ARIN prefixes after maximum aggregation: 62428
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78716
Unique aggregates announced from the ARIN address blocks: 30801
ARIN Region origin ASes present in the Internet Routing Table: 11592
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4455
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: 334197888
Equivalent to 19 /8s, 235 /16s and 116 /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: 45780
Total RIPE prefixes after maximum aggregation: 29918
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42284
Unique aggregates announced from the RIPE address blocks: 28297
RIPE Region origin ASes present in the Internet Routing Table: 9669
RIPE Prefixes per ASN: 4.37
RIPE Region origin ASes announcing only one prefix: 5102
RIPE Region transit ASes present in the Internet Routing Table: 1555
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 307143808
Equivalent to 18 /8s, 78 /16s and 164 /24s
Percentage of available RIPE address space announced: 76.3
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: 15311
Total LACNIC prefixes after maximum aggregation: 4165
LACNIC Deaggregation factor: 3.68
Prefixes being announced from the LACNIC address blocks: 13398
Unique aggregates announced from the LACNIC address blocks: 7325
LACNIC Region origin ASes present in the Internet Routing Table: 796
LACNIC Prefixes per ASN: 16.83
LACNIC Region origin ASes announcing only one prefix: 255
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: 38987264
Equivalent to 2 /8s, 82 /16s and 230 /24s
Percentage of available LACNIC address space announced: 58.1
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: 2595
Total AfriNIC prefixes after maximum aggregation: 1007
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 1975
Unique aggregates announced from the AfriNIC address blocks: 1188
AfriNIC Region origin ASes present in the Internet Routing Table: 190
AfriNIC Prefixes per ASN: 10.39
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: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6128896
Equivalent to 0 /8s, 93 /16s and 133 /24s
Percentage of available AfriNIC address space announced: 18.3
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 1287 9975 278 CHINANET-BACKBONE
4755 1224 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1120 109 19 Sify Limited
9498 984 469 71 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 694 45 38 Hathway IP Over Cable Interne
7545 628 142 80 TPG Internet Pty Ltd
1221 549 1954 424 Telstra Pty Ltd
18101 546 116 36 Reliance Infocom Ltd Internet
4668 506 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 464 120 76 Primus Telecommunications
4812 462 821 76 China Telecom (Shanghai)
7474 410 218 269 SingTel Optus Pty Ltd
4802 409 86 148 Wantree Development
9829 362 258 14 BSNL National Internet Backbo
2907 359 1700 301 SINET Japan
17557 356 37 169 Pakistan Telecom
17974 346 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1502 6160 992 AT&T WorldNet Services
4323 1270 1032 365 Time Warner Telecom
2386 1150 596 757 AT&T Data Communications Serv
11492 1074 104 22 Cable One
6197 1040 706 508 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
6478 999 315 323 AT&T Worldnet Services
701 960 6614 736 UUNET Technologies, Inc.
174 954 6776 863 Cogent Communications
1239 819 2731 579 Sprint
20115 807 724 428 Charter Communications
7011 799 227 476 Citizens Utilities
19262 777 2678 210 Verizon Global Networks
209 742 3836 581 Qwest
22773 722 1892 44 Cox Communications, Inc.
5668 598 160 17 CenturyTel Internet Holdings,
7385 596 166 463 Linkport Communications
852 588 1090 370 Telus Advanced Communications
7029 587 488 80 Alltel Information Services,
721 573 21659 267 DLA Systems Automation Center
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 518 1939 411 UUNET - Commercial IP service
24863 346 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 305 4994 252 Deutsche Telekom AG
6746 280 128 255 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
8220 250 459 241 COLT Telecommunications
3215 246 2279 94 France Telecom Transpac
8708 236 288 229 Romania Data Systems S.A.
5089 219 1658 53 NTL Group Limited
3269 216 2647 74 TELECOM ITALIA
8551 206 196 30 Bezeq International
3352 202 1799 36 Ibernet, Internet Access Netw
3246 200 334 190 Song Networks
9116 197 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
12479 185 578 6 Uni2 Autonomous System
30890 183 15 90 SC Kappa Invexim SRL
3300 182 171 89 AUCS Communications Services
786 176 1795 176 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1314 1870 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 366 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 317 238 12 VTR PUNTO NET S.A.
7303 284 143 28 Telecom Argentina Stet-France
6471 265 74 31 ENTEL CHILE S.A.
14117 243 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 224 168 25 Telefonica Del Peru
6503 216 172 86 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 186 53 24 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 59 INTERCABLE
19429 153 94 43 E.T.B.
7738 143 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 867 226 The Internet Solution
8452 229 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 134 84 4 Nile Online
5536 123 8 15 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 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 13 23 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
12455 25 6 3 Jambonet Autonomous system
33766 25 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1224 1152 Videsh Sanchar Nigam Ltd. Aut
8151 1314 1104 UniNet S.A. de C.V.
9583 1120 1101 Sify Limited
11492 1074 1052 Cable One
4134 1287 1009 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
9498 984 913 BHARTI BT INTERNET LTD.
4323 1270 905 Time Warner Telecom
22773 722 678 Cox Communications, Inc.
6478 999 676 AT&T Worldnet Services
17488 694 656 Hathway IP Over Cable Interne
5668 598 581 CenturyTel Internet Holdings,
19262 777 567 Verizon Global Networks
7545 628 548 TPG Internet Pty Ltd
6197 1040 532 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 546 510 Reliance Infocom Ltd Internet
7029 587 507 Alltel Information Services,
15270 541 506 PaeTec.net -a division of Pae
4668 506 496 LG-EDS Systems Inc.
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
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
1.1.1.0/24 6461 AboveNet Communications, Inc.
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 /10:14 /11:35 /12:123
/13:237 /14:452 /15:872 /16:9422 /17:3892 /18:6375
/19:13497 /20:15488 /21:13969 /22:18176 /23:19385 /24:117385
/25:762 /26:827 /27:475 /28:67 /29:8 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1060 1074 Cable One
18566 992 1010 Covad Communications
6478 990 999 AT&T Worldnet Services
9583 948 1120 Sify Limited
2386 846 1150 AT&T Data Communications Serv
7018 809 1502 AT&T WorldNet Services
6197 795 1040 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 700 799 Citizens Utilities
8151 692 1314 UniNet S.A. de C.V.
9498 654 984 BHARTI BT INTERNET LTD.
4755 622 1224 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 526 1270 Time Warner Telecom
17488 515 694 Hathway IP Over Cable Interne
15270 508 541 PaeTec.net -a division of Pae
4668 496 506 LG-EDS Systems Inc.
18101 466 546 Reliance Infocom Ltd Internet
855 464 566 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:9 7:1 8:73 9:1 12:1798
15:19 16:3 17:3 18:8 20:38 24:946
25:1 32:52 33:2 38:312 40:61 41:140
44:2 47:5 52:4 55:3 56:3 57:23
58:399 59:391 60:298 61:949 62:894 63:1978
64:3126 65:2367 66:3280 67:813 68:641 69:1844
70:514 71:105 72:1322 73:1 74:482 75:262
76:62 77:200 78:2 80:815 81:801 82:573
83:387 84:408 85:767 86:342 87:464 88:274
89:866 90:7 91:317 97:6 116:80 121:187
122:534 123:103 124:819 125:935 128:280 129:223
130:129 131:365 132:52 133:9 134:192 135:38
136:186 137:75 138:140 139:70 140:476 141:171
142:368 143:234 144:293 145:43 146:322 147:118
148:398 149:144 150:114 151:159 152:92 153:124
154:4 155:254 156:152 157:186 158:158 159:158
160:106 161:91 162:234 163:185 164:451 165:405
166:240 167:283 168:498 169:120 170:401 171:16
172:1 189:535 190:629 192:5773 193:3854 194:3131
195:2229 196:940 198:3733 199:3294 200:4775 201:1033
202:7299 203:7537 204:3968 205:2063 206:2365 207:2867
208:2697 209:3587 210:2467 211:959 212:1320 213:1463
214:410 215:40 216:4035 217:1156 218:359 219:379
220:947 221:400 222:260
End of report
