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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 11 Mar, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 247304
Prefixes after maximum aggregation: 125235
Deaggregation factor: 1.97
Unique aggregates announced to Internet: 120510
Total ASes present in the Internet Routing Table: 27575
Prefixes per ASN: 8.97
Origin-only ASes present in the Internet Routing Table: 24023
Origin ASes announcing only one prefix: 11656
Transit ASes present in the Internet Routing Table: 3552
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 19
Max AS path prepend of ASN (43380) 13
Prefixes from unregistered ASNs in the Routing Table: 41
Unregistered ASNs in the Routing Table: 17
Number of 32-bit ASNs allocated by the RIRs: 46
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 877
Number of addresses announced to Internet: 1857736672
Equivalent to 110 /8s, 186 /16s and 207 /24s
Percentage of available address space announced: 50.1
Percentage of allocated address space announced: 61.5
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 70.8
Total number of prefixes smaller than registry allocations: 116970
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 56291
Total APNIC prefixes after maximum aggregation: 20967
APNIC Deaggregation factor: 2.68
Prefixes being announced from the APNIC address blocks: 53880
Unique aggregates announced from the APNIC address blocks: 23285
APNIC Region origin ASes present in the Internet Routing Table: 3159
APNIC Prefixes per ASN: 17.06
APNIC Region origin ASes announcing only one prefix: 845
APNIC Region transit ASes present in the Internet Routing Table: 487
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 334753632
Equivalent to 19 /8s, 243 /16s and 239 /24s
Percentage of available APNIC address space announced: 76.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 114/8, 115/8, 116/8,
117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8,
124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8,
218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 115727
Total ARIN prefixes after maximum aggregation: 65389
ARIN Deaggregation factor: 1.77
Prefixes being announced from the ARIN address blocks: 84443
Unique aggregates announced from the ARIN address blocks: 33559
ARIN Region origin ASes present in the Internet Routing Table: 12186
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4681
ARIN Region transit ASes present in the Internet Routing Table: 1150
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 356829056
Equivalent to 21 /8s, 68 /16s and 199 /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, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 52880
Total RIPE prefixes after maximum aggregation: 33007
RIPE Deaggregation factor: 1.60
Prefixes being announced from the RIPE address blocks: 47990
Unique aggregates announced from the RIPE address blocks: 32282
RIPE Region origin ASes present in the Internet Routing Table: 11010
RIPE Prefixes per ASN: 4.36
RIPE Region origin ASes announcing only one prefix: 5747
RIPE Region transit ASes present in the Internet Routing Table: 1684
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 347091968
Equivalent to 20 /8s, 176 /16s and 52 /24s
Percentage of available RIPE address space announced: 79.6
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 18799
Total LACNIC prefixes after maximum aggregation: 4729
LACNIC Deaggregation factor: 3.98
Prefixes being announced from the LACNIC address blocks: 17214
Unique aggregates announced from the LACNIC address blocks: 9404
LACNIC Region origin ASes present in the Internet Routing Table: 911
LACNIC Prefixes per ASN: 18.90
LACNIC Region origin ASes announcing only one prefix: 305
LACNIC Region transit ASes present in the Internet Routing Table: 156
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 49224960
Equivalent to 2 /8s, 239 /16s and 29 /24s
Percentage of available LACNIC address space announced: 48.9
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3564
Total AfriNIC prefixes after maximum aggregation: 1127
AfriNIC Deaggregation factor: 3.16
Prefixes being announced from the AfriNIC address blocks: 3977
Unique aggregates announced from the AfriNIC address blocks: 1794
AfriNIC Region origin ASes present in the Internet Routing Table: 231
AfriNIC Prefixes per ASN: 17.22
AfriNIC Region origin ASes announcing only one prefix: 78
AfriNIC Region transit ASes present in the Internet Routing Table: 42
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 10035712
Equivalent to 0 /8s, 153 /16s and 34 /24s
Percentage of available AfriNIC address space announced: 29.9
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
4755 1545 381 126 Videsh Sanchar Nigam Ltd. Aut
9498 1155 550 66 BHARTI BT INTERNET LTD.
9583 1147 102 125 Sify Limited
17488 1014 65 85 Hathway IP Over Cable Interne
4134 852 12377 313 CHINANET-BACKBONE
4766 847 6005 340 Korea Telecom (KIX)
23577 814 34 696 Korea Telecom (ATM-MPLS)
18101 681 127 60 Reliance Infocom Ltd Internet
9829 595 449 11 BSNL National Internet Backbo
4812 560 951 90 China Telecom (Shanghai)
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1424 5944 1000 AT&T WorldNet Services
4323 1387 1012 366 Time Warner Telecom
2386 1383 638 843 AT&T Data Communications Serv
11492 1211 144 26 Cable One
7011 1063 309 609 Citizens Utilities
18566 1043 296 10 Covad Communications
6197 996 729 476 BellSouth Network Solutions,
1785 975 479 107 AppliedTheory Corporation
174 969 6835 818 Cogent Communications
6478 931 237 110 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 398 1778 363 TDC Tele Danmark
8452 389 188 7 TEDATA
3301 340 1443 309 TeliaNet Sweden
3320 322 7045 267 Deutsche Telekom AG
8866 292 78 24 Bulgarian Telecommunication C
8551 279 267 42 Bezeq International
680 276 2046 256 DFN-IP service G-WiN
5462 275 666 26 Telewest Broadband
8708 275 421 245 Romania Data Systems S.A.
3215 274 2631 96 France Telecom Transpac
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1187 2449 221 UniNet S.A. de C.V.
11830 556 299 9 Instituto Costarricense de El
7303 450 218 60 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
11172 402 116 67 Servicios Alestra S.A de C.V
6471 397 85 40 ENTEL CHILE S.A.
10620 372 98 47 TVCABLE BOGOTA
14117 352 25 15 Telefonica del Sur S.A.
22047 323 270 14 VTR PUNTO NET S.A.
10481 302 120 10 Prima S.A.
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 450 60 27 LINKdotNET AS number
3741 288 869 224 The Internet Solution
2018 252 276 118 Tertiary Education Network
20858 217 34 4 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
33783 130 9 16 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
24835 90 48 7 RAYA Telecom - Egypt
29571 80 13 7 Ci Telecom Autonomous system
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
4755 1545 381 126 Videsh Sanchar Nigam Ltd. Aut
7018 1424 5944 1000 AT&T WorldNet Services
4323 1387 1012 366 Time Warner Telecom
2386 1383 638 843 AT&T Data Communications Serv
11492 1211 144 26 Cable One
8151 1187 2449 221 UniNet S.A. de C.V.
9498 1155 550 66 BHARTI BT INTERNET LTD.
9583 1147 102 125 Sify Limited
7011 1063 309 609 Citizens Utilities
18566 1043 296 10 Covad Communications
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
11492 1211 1185 Cable One
9498 1155 1089 BHARTI BT INTERNET LTD.
18566 1043 1033 Covad Communications
9583 1147 1022 Sify Limited
4323 1387 1021 Time Warner Telecom
8151 1187 966 UniNet S.A. de C.V.
17488 1014 929 Hathway IP Over Cable Interne
1785 975 868 AppliedTheory Corporation
22773 887 822 Cox Communications, Inc.
6478 931 821 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D
16886 UNALLOCATED 63.109.3.0/24 1239 Sprint
16886 UNALLOCATED 63.167.139.0/24 1239 Sprint
33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom
65011 PRIVATE 74.43.150.0/24 7011 Citizens Utilities
65000 PRIVATE 92.62.240.0/20 24750 Cable Internet Syste
64601 PRIVATE 118.232.77.0/24 9924 Taiwan Fixed Network
64601 PRIVATE 118.232.78.0/24 9924 Taiwan Fixed Network
64601 PRIVATE 118.232.224.0/21 9924 Taiwan Fixed Network
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.48.10.0/23 19548 Adelphia Business Solutions
24.48.12.0/22 19548 Adelphia Business Solutions
24.48.80.0/21 19548 Adelphia Business Solutions
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.192.0/18 19548 Adelphia Business Solutions
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
41.207.64.0/24 36915 Africa Online Kenya
Complete listing at http://thyme.apnic.net/current/data-add-IANA
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 /10:16 /11:40 /12:139
/13:278 /14:496 /15:989 /16:9767 /17:4253 /18:7177
/19:15170 /20:17383 /21:16523 /22:20927 /23:21993 /24:129762
/25:767 /26:981 /27:487 /28:109 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1198 1211 Cable One
2386 1086 1383 AT&T Data Communications Serv
18566 1024 1043 Covad Communications
9583 985 1147 Sify Limited
7011 946 1063 Citizens Utilities
6478 930 931 AT&T Worldnet Services
4755 919 1545 Videsh Sanchar Nigam Ltd. Aut
17488 829 1014 Hathway IP Over Cable Interne
9498 817 1155 BHARTI BT INTERNET LTD.
23577 805 814 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:100 11:1 12:1995 13:2 15:21
16:3 17:6 18:13 20:35 24:1032 25:1
32:61 33:4 38:400 40:65 41:623 44:2
47:8 52:3 55:3 56:3 57:21 58:510
59:420 60:418 61:976 62:1126 63:1964 64:3344
65:2351 66:3622 67:1030 68:637 69:2096 70:477
71:106 72:1485 73:6 74:851 75:172 76:265
77:595 78:511 79:93 80:879 81:815 82:604
83:356 84:541 85:949 86:393 87:633 88:293
89:1176 90:11 91:1081 92:167 93:135 96:16
97:14 98:71 99:3 116:552 117:272 118:81
119:168 121:435 122:715 123:310 124:817 125:1070
128:322 129:200 130:125 131:399 132:69 133:9
134:188 135:32 136:222 137:118 138:154 139:64
140:490 141:109 142:380 143:271 144:341 145:53
146:334 147:132 148:440 149:178 150:119 151:155
152:144 153:131 154:11 155:266 156:207 157:252
158:165 159:218 160:244 161:99 162:204 163:192
164:565 165:426 166:295 167:310 168:590 169:130
170:426 171:29 172:3 189:148 190:1367 192:5766
193:4100 194:3261 195:2360 196:1069 198:3778 199:3199
200:5480 201:1299 202:7589 203:7708 204:3983 205:2096
206:2401 207:2748 208:3216 209:3469 210:2525 211:1027
212:1312 213:1606 214:446 215:48 216:4185 217:1227
218:339 219:389 220:1076 221:400 222:311
End of report
