Routing Table Report 00:00 GMT Sat 06 Sep, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 285956
Prefixes after maximum aggregation: 130963
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 129959
Total ASes present in the Internet Routing Table: 29205
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 25299
Origin ASes announcing only one prefix: 12277
Transit ASes present in the Internet Routing Table: 3906
Transit-only ASes present in the Internet Routing Table: 94
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 27
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 600
Unregistered ASNs in the Routing Table: 232
Number of 32-bit ASNs allocated by the RIRs: 59
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 777
Number of addresses announced to Internet: 1916615990
Equivalent to 114 /8s, 61 /16s and 61 /24s
Percentage of available address space announced: 51.7
Percentage of allocated address space announced: 62.8
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.4
Total number of prefixes smaller than registry allocations: 136499
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65819
Total APNIC prefixes after maximum aggregation: 22678
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 62834
Unique aggregates announced from the APNIC address blocks: 26009
APNIC Region origin ASes present in the Internet Routing Table: 3372
APNIC Prefixes per ASN: 18.63
APNIC Region origin ASes announcing only one prefix: 908
APNIC Region transit ASes present in the Internet Routing Table: 535
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 375534752
Equivalent to 22 /8s, 98 /16s and 52 /24s
Percentage of available APNIC address space announced: 79.9
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, 112/8, 113/8, 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: 127844
Total ARIN prefixes after maximum aggregation: 66142
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 95371
Unique aggregates announced from the ARIN address blocks: 35119
ARIN Region origin ASes present in the Internet Routing Table: 12442
ARIN Prefixes per ASN: 7.67
ARIN Region origin ASes announcing only one prefix: 4770
ARIN Region transit ASes present in the Internet Routing Table: 1236
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 362755969
Equivalent to 21 /8s, 159 /16s and 55 /24s
Percentage of available ARIN address space announced: 74.6
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, 46080-47103
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: 63308
Total RIPE prefixes after maximum aggregation: 35111
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 58882
Unique aggregates announced from the RIPE address blocks: 35432
RIPE Region origin ASes present in the Internet Routing Table: 11839
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 6194
RIPE Region transit ASes present in the Internet Routing Table: 1842
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 371349760
Equivalent to 22 /8s, 34 /16s and 89 /24s
Percentage of available RIPE address space announced: 85.1
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
40960-45055, 47104-48127
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: 24305
Total LACNIC prefixes after maximum aggregation: 5303
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 22508
Unique aggregates announced from the LACNIC address blocks: 10862
LACNIC Region origin ASes present in the Internet Routing Table: 993
LACNIC Prefixes per ASN: 22.67
LACNIC Region origin ASes announcing only one prefix: 316
LACNIC Region transit ASes present in the Internet Routing Table: 169
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 55065358
Equivalent to 3 /8s, 72 /16s and 59 /24s
Percentage of available LACNIC address space announced: 54.7
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: 4081
Total AfriNIC prefixes after maximum aggregation: 1257
AfriNIC Deaggregation factor: 3.25
Prefixes being announced from the AfriNIC address blocks: 4401
Unique aggregates announced from the AfriNIC address blocks: 1966
AfriNIC Region origin ASes present in the Internet Routing Table: 258
AfriNIC Prefixes per ASN: 17.06
AfriNIC Region origin ASes announcing only one prefix: 89
AfriNIC Region transit ASes present in the Internet Routing Table: 53
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 12603392
Equivalent to 0 /8s, 192 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 37.6
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
4538 3306 3214 44 China Education and Research
4755 1732 578 92 Videsh Sanchar Nigam Ltd. Aut
4134 1598 13651 345 CHINANET-BACKBONE
17488 1372 90 102 Hathway IP Over Cable Interne
9583 1148 89 491 Sify Limited
4766 843 6407 358 Korea Telecom (KIX)
23577 823 33 728 Korea Telecom (ATM-MPLS)
4780 718 353 61 Digital United Inc.
18101 715 167 29 Reliance Infocom Ltd Internet
9498 687 291 53 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4305 3384 333 bellsouth.net, inc.
6298 1970 314 760 Cox Communicatons
1785 1652 710 156 AppliedTheory Corporation
20115 1587 1236 704 Charter Communications
2386 1560 677 907 AT&T Data Communications Serv
3549 1513 540 215 Global Crossing
4323 1504 1071 374 Time Warner Telecom
7018 1456 9869 958 AT&T WorldNet Services
1803 1299 8 1026 SPRINT
7132 1261 9279 332 SBC Internet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3320 1182 7063 273 Deutsche Telekom AG
3352 798 2044 43 Ibernet, Internet Access Netw
3269 707 3389 73 TELECOM ITALIA
3215 636 2756 106 France Telecom Transpac
3292 519 1776 374 TDC Tele Danmark
1257 452 1131 205 SWIPnet Swedish IP Network
9121 431 1445 27 TTnet Autonomous System
3301 357 1444 305 TeliaNet Sweden
8452 341 188 11 TEDATA
5462 338 794 27 Telewest Broadband
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 1728 239 67 Telecom Argentina Stet-France
8151 1664 2608 228 UniNet S.A. de C.V.
11830 665 299 9 Instituto Costarricense de El
22047 593 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 424 85 48 ENTEL CHILE S.A.
10620 422 103 62 TVCABLE BOGOTA
11172 413 118 72 Servicios Alestra S.A de C.V
16735 412 92 11 Companhia de Telecomunicacoes
28573 411 441 29 NET Servicos de Comunicao S.A
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 515 65 36 LINKdotNET AS number
20858 404 34 3 EgyNet
3741 264 855 223 The Internet Solution
2018 233 214 138 Tertiary Education Network
6713 145 135 11 Itissalat Al-MAGHRIB
33783 137 10 13 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
33776 119 6 3 Starcomms Nigeria Limited
5713 118 555 68 Telkom SA Ltd
29571 107 13 8 Ci Telecom Autonomous system
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4305 3384 333 bellsouth.net, inc.
4538 3306 3214 44 China Education and Research
6298 1970 314 760 Cox Communicatons
4755 1732 578 92 Videsh Sanchar Nigam Ltd. Aut
7303 1728 239 67 Telecom Argentina Stet-France
8151 1664 2608 228 UniNet S.A. de C.V.
1785 1652 710 156 AppliedTheory Corporation
4134 1598 13651 345 CHINANET-BACKBONE
20115 1587 1236 704 Charter Communications
2386 1560 677 907 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3306 3262 China Education and Research
7303 1728 1661 Telecom Argentina Stet-France
4755 1732 1640 Videsh Sanchar Nigam Ltd. Aut
1785 1652 1496 AppliedTheory Corporation
8151 1664 1436 UniNet S.A. de C.V.
3549 1513 1298 Global Crossing
17488 1372 1270 Hathway IP Over Cable Interne
4134 1598 1253 CHINANET-BACKBONE
6298 1970 1210 Cox Communicatons
11492 1211 1193 Cable One
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.246.47/32 286 KPNQwest Backbone AS
10.29.246.48/32 286 KPNQwest Backbone AS
10.29.246.49/32 286 KPNQwest Backbone AS
10.29.248.65/32 286 KPNQwest Backbone AS
10.29.248.71/32 286 KPNQwest Backbone AS
192.168.192.0/21 7497 Computer Network Information
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
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
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.71.0/24 701 UUNET Technologies, Inc.
63.143.115.0/24 701 UUNET Technologies, Inc.
Complete listing at http://thyme.apnic.net/rviews/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 /8:19 /9:9 /10:17 /11:46 /12:147
/13:298 /14:535 /15:1073 /16:10154 /17:4420 /18:7701
/19:27588 /20:19155 /21:18636 /22:23987 /23:24796 /24:143618
/25:796 /26:1021 /27:369 /28:757 /29:380 /30:224
/31:0 /32:210
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2849 4305 bellsouth.net, inc.
6298 1945 1970 Cox Communicatons
4538 1761 3306 China Education and Research
1803 1277 1299 SPRINT
2386 1238 1560 AT&T Data Communications Serv
7303 1226 1728 Telecom Argentina Stet-France
11492 1192 1211 Cable One
17488 1180 1372 Hathway IP Over Cable Interne
1785 1122 1652 AppliedTheory Corporation
3549 1099 1513 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:138 12:2162 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1087 32:197
38:492 40:92 41:712 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:559 59:590
60:453 61:973 62:1300 63:1976 64:3394 65:2351
66:3480 67:1230 68:774 69:2301 70:843 71:169
72:2029 73:6 74:1137 75:171 76:286 77:790
78:798 79:318 80:951 81:837 82:586 83:376
84:577 85:972 86:399 87:726 88:338 89:1324
90:26 91:1456 92:255 93:861 94:134 96:64
97:68 98:323 99:7 114:97 115:44 116:1035
117:369 118:240 119:484 120:86 121:604 122:840
123:405 124:854 125:1243 128:355 129:204 130:134
131:409 132:70 133:9 134:178 135:34 136:217
137:92 138:141 139:101 140:506 141:102 142:407
143:296 144:362 145:51 146:382 147:157 148:517
149:294 150:128 151:181 152:148 153:143 154:10
155:284 156:175 157:298 158:163 159:301 160:273
161:139 162:255 163:155 164:516 165:502 166:383
167:331 168:629 169:143 170:458 171:33 172:10
173:33 188:1 189:634 190:2370 192:5804 193:4256
194:3355 195:2662 196:991 198:3738 199:3306 200:5956
201:1643 202:8224 203:8080 204:3941 205:2151 206:2425
207:2753 208:3681 209:3399 210:2988 211:1253 212:1438
213:1656 214:178 215:50 216:4338 217:1222 218:404
219:524 220:1066 221:427 222:444
End of report