Routing Table Report 00:00 GMT Sat 27 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: 275350
Prefixes after maximum aggregation: 131644
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 131164
Total ASes present in the Internet Routing Table: 29406
Prefixes per ASN: 9.36
Origin-only ASes present in the Internet Routing Table: 25559
Origin ASes announcing only one prefix: 12443
Transit ASes present in the Internet Routing Table: 3847
Transit-only ASes present in the Internet Routing Table: 90
Average AS path length visible in the Internet Routing Table: 3.4
Max AS path length visible: 26
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 563
Unregistered ASNs in the Routing Table: 217
Number of 32-bit ASNs allocated by the RIRs: 60
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 773
Number of addresses announced to Internet: 1925471864
Equivalent to 114 /8s, 196 /16s and 94 /24s
Percentage of available address space announced: 51.9
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.6
Total number of prefixes smaller than registry allocations: 135930
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65152
Total APNIC prefixes after maximum aggregation: 22913
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 62152
Unique aggregates announced from the APNIC address blocks: 26360
APNIC Region origin ASes present in the Internet Routing Table: 3398
APNIC Prefixes per ASN: 18.29
APNIC Region origin ASes announcing only one prefix: 919
APNIC Region transit ASes present in the Internet Routing Table: 530
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 25
Number of APNIC addresses announced to Internet: 378096736
Equivalent to 22 /8s, 137 /16s and 76 /24s
Percentage of available APNIC address space announced: 80.5
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: 122823
Total ARIN prefixes after maximum aggregation: 66197
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 90996
Unique aggregates announced from the ARIN address blocks: 35319
ARIN Region origin ASes present in the Internet Routing Table: 12501
ARIN Prefixes per ASN: 7.28
ARIN Region origin ASes announcing only one prefix: 4826
ARIN Region transit ASes present in the Internet Routing Table: 1227
Average ARIN Region AS path length visible: 3.2
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 364842369
Equivalent to 21 /8s, 191 /16s and 13 /24s
Percentage of available ARIN address space announced: 75.0
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: 59381
Total RIPE prefixes after maximum aggregation: 35461
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 55005
Unique aggregates announced from the RIPE address blocks: 35852
RIPE Region origin ASes present in the Internet Routing Table: 11956
RIPE Prefixes per ASN: 4.60
RIPE Region origin ASes announcing only one prefix: 6291
RIPE Region transit ASes present in the Internet Routing Table: 1811
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 373445762
Equivalent to 22 /8s, 66 /16s and 84 /24s
Percentage of available RIPE address space announced: 85.6
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, 47104-49151
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: 23331
Total LACNIC prefixes after maximum aggregation: 5358
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 21452
Unique aggregates announced from the LACNIC address blocks: 11039
LACNIC Region origin ASes present in the Internet Routing Table: 1001
LACNIC Prefixes per ASN: 21.43
LACNIC Region origin ASes announcing only one prefix: 320
LACNIC Region transit ASes present in the Internet Routing Table: 173
Average LACNIC Region AS path length visible: 3.7
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 56803342
Equivalent to 3 /8s, 98 /16s and 192 /24s
Percentage of available LACNIC address space announced: 56.4
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: 4102
Total AfriNIC prefixes after maximum aggregation: 1268
AfriNIC Deaggregation factor: 3.24
Prefixes being announced from the AfriNIC address blocks: 4404
Unique aggregates announced from the AfriNIC address blocks: 2033
AfriNIC Region origin ASes present in the Internet Routing Table: 263
AfriNIC Prefixes per ASN: 16.75
AfriNIC Region origin ASes announcing only one prefix: 87
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 12738560
Equivalent to 0 /8s, 194 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 38.0
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 3339 3214 44 China Education and Research
4755 1643 578 92 Videsh Sanchar Nigam Ltd. Aut
17488 1392 94 101 Hathway IP Over Cable Interne
9583 1105 86 476 Sify Limited
4134 854 13665 344 CHINANET-BACKBONE
4766 846 6407 360 Korea Telecom (KIX)
23577 815 33 721 Korea Telecom (ATM-MPLS)
18101 776 161 62 Reliance Infocom Ltd Internet
4780 721 353 61 Digital United Inc.
9498 682 295 58 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 4293 3415 337 bellsouth.net, inc.
6298 1997 318 728 Cox Communicatons
20115 1683 1422 713 Charter Communications
1785 1658 712 152 AppliedTheory Corporation
2386 1552 677 903 AT&T Data Communications Serv
4323 1521 1067 369 Time Warner Telecom
7018 1404 9881 970 AT&T WorldNet Services
1803 1318 9 1041 SPRINT
11492 1212 152 11 Cable One
6478 1188 241 189 AT&T Worldnet 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
3292 427 1777 379 TDC Tele Danmark
3301 330 1428 301 TeliaNet Sweden
30890 330 87 175 SC Kappa Invexim SRL
3215 328 2756 107 France Telecom Transpac
3320 324 7063 272 Deutsche Telekom AG
5462 322 794 26 Telewest Broadband
8866 321 79 22 Bulgarian Telecommunication C
8452 316 188 11 TEDATA
35228 303 88 5 Avatar Broadband Limited
8551 287 270 37 Bezeq International
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 1721 241 70 Telecom Argentina Stet-France
8151 1385 2812 216 UniNet S.A. de C.V.
11830 668 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
10620 435 106 63 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
16735 421 92 10 Companhia de Telecomunicacoes
6471 420 85 48 ENTEL CHILE S.A.
11172 406 102 71 Servicios Alestra S.A de C.V
7738 373 730 27 Telecomunicacoes da Bahia 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 543 71 41 LINKdotNET AS number
20858 401 34 3 EgyNet
3741 263 855 222 The Internet Solution
2018 232 215 139 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 123 10 9 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
5713 119 555 69 Telkom SA Ltd
33776 116 6 3 Starcomms Nigeria Limited
29571 108 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 4293 3415 337 bellsouth.net, inc.
4538 3339 3214 44 China Education and Research
6298 1997 318 728 Cox Communicatons
7303 1721 241 70 Telecom Argentina Stet-France
20115 1683 1422 713 Charter Communications
1785 1658 712 152 AppliedTheory Corporation
4755 1643 578 92 Videsh Sanchar Nigam Ltd. Aut
2386 1552 677 903 AT&T Data Communications Serv
4323 1521 1067 369 Time Warner Telecom
7018 1404 9881 970 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3339 3295 China Education and Research
7303 1721 1651 Telecom Argentina Stet-France
4755 1643 1551 Videsh Sanchar Nigam Ltd. Aut
1785 1658 1506 AppliedTheory Corporation
17488 1392 1291 Hathway IP Over Cable Interne
6298 1997 1269 Cox Communicatons
11492 1212 1201 Cable One
8151 1385 1169 UniNet S.A. de C.V.
4323 1521 1152 Time Warner Telecom
18566 1052 1042 Covad Communications
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
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 /12:148
/13:299 /14:537 /15:1072 /16:10195 /17:4438 /18:7709
/19:16297 /20:19433 /21:18782 /22:24237 /23:24958 /24:143812
/25:629 /26:715 /27:381 /28:771 /29:390 /30:234
/31:0 /32:222
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2845 4293 bellsouth.net, inc.
6298 1971 1997 Cox Communicatons
4538 1768 3339 China Education and Research
1803 1295 1318 SPRINT
7303 1248 1721 Telecom Argentina Stet-France
2386 1232 1552 AT&T Data Communications Serv
17488 1199 1392 Hathway IP Over Cable Interne
11492 1188 1212 Cable One
1785 1126 1658 AppliedTheory Corporation
6478 1080 1188 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:141 12:2179 13:2 15:22 16:3
17:5 18:13 20:35 24:1080 32:197 38:501
40:92 41:683 43:1 44:2 47:8 52:3
55:3 56:3 57:49 58:555 59:595 60:452
61:988 62:1307 63:1968 64:3229 65:2375 66:3513
67:1249 68:790 69:2327 70:855 71:168 72:2054
73:7 74:1201 75:161 76:276 77:796 78:840
79:259 80:946 81:862 82:606 83:380 84:578
85:1003 86:398 87:714 88:338 89:1366 90:21
91:1548 92:267 93:896 94:178 96:74 97:82
98:333 99:8 113:1 114:110 115:87 116:1013
117:377 118:233 119:499 120:96 121:622 122:853
123:442 124:863 125:1245 128:358 129:204 130:134
131:413 132:70 133:9 134:178 135:32 136:224
137:96 138:142 139:89 140:506 141:103 142:408
143:289 144:327 145:51 146:370 147:159 148:518
149:297 150:128 151:181 152:150 153:143 154:10
155:281 156:173 157:301 158:168 159:306 160:267
161:138 162:254 163:154 164:516 165:507 166:381
167:332 168:633 169:143 170:477 171:33 172:10
173:34 186:1 187:16 188:1 189:366 190:2494
192:5830 193:4251 194:3363 195:2654 196:997 198:3736
199:3322 200:5886 201:1593 202:8271 203:8102 204:3943
205:2156 206:2358 207:2696 208:3649 209:3407 210:2992
211:1248 212:1477 213:1653 214:175 215:50 216:4331
217:1229 218:408 219:525 220:1069 221:417 222:415
End of report