Routing Table Report 00:00 GMT Mon 24 Nov, 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: 280848
Prefixes after maximum aggregation: 133295
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 132811
Total ASes present in the Internet Routing Table: 29937
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 25969
Origin ASes announcing only one prefix: 12656
Transit ASes present in the Internet Routing Table: 3968
Transit-only ASes present in the Internet Routing Table: 95
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 21
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 535
Unregistered ASNs in the Routing Table: 199
Number of 32-bit ASNs allocated by the RIRs: 65
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 194
Number of addresses announced to Internet: 1960707484
Equivalent to 116 /8s, 222 /16s and 5 /24s
Percentage of available address space announced: 52.9
Percentage of allocated address space announced: 63.2
Percentage of available address space allocated: 83.7
Percentage of address space in use by end-sites: 74.4
Total number of prefixes smaller than registry allocations: 139581
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 66088
Total APNIC prefixes after maximum aggregation: 23297
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 63041
Unique aggregates announced from the APNIC address blocks: 26638
APNIC Region origin ASes present in the Internet Routing Table: 3475
APNIC Prefixes per ASN: 18.14
APNIC Region origin ASes announcing only one prefix: 943
APNIC Region transit ASes present in the Internet Routing Table: 537
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 385457184
Equivalent to 22 /8s, 249 /16s and 156 /24s
Percentage of available APNIC address space announced: 76.6
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, 110/8, 111/8, 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: 124625
Total ARIN prefixes after maximum aggregation: 66362
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 93027
Unique aggregates announced from the ARIN address blocks: 34805
ARIN Region origin ASes present in the Internet Routing Table: 12640
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4865
ARIN Region transit ASes present in the Internet Routing Table: 1251
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 401382657
Equivalent to 23 /8s, 236 /16s and 157 /24s
Percentage of available ARIN address space announced: 82.5
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: 61230
Total RIPE prefixes after maximum aggregation: 36303
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 57219
Unique aggregates announced from the RIPE address blocks: 37328
RIPE Region origin ASes present in the Internet Routing Table: 12237
RIPE Prefixes per ASN: 4.68
RIPE Region origin ASes announcing only one prefix: 6431
RIPE Region transit ASes present in the Internet Routing Table: 1894
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 379629287
Equivalent to 22 /8s, 160 /16s and 174 /24s
Percentage of available RIPE address space announced: 87.0
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: 24142
Total LACNIC prefixes after maximum aggregation: 5543
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 22197
Unique aggregates announced from the LACNIC address blocks: 11401
LACNIC Region origin ASes present in the Internet Routing Table: 1034
LACNIC Prefixes per ASN: 21.47
LACNIC Region origin ASes announcing only one prefix: 335
LACNIC Region transit ASes present in the Internet Routing Table: 171
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 58345742
Equivalent to 3 /8s, 122 /16s and 73 /24s
Percentage of available LACNIC address space announced: 58.0
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: 4236
Total AfriNIC prefixes after maximum aggregation: 1360
AfriNIC Deaggregation factor: 3.11
Prefixes being announced from the AfriNIC address blocks: 4526
Unique aggregates announced from the AfriNIC address blocks: 2172
AfriNIC Region origin ASes present in the Internet Routing Table: 271
AfriNIC Prefixes per ASN: 16.70
AfriNIC Region origin ASes announcing only one prefix: 82
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 12939136
Equivalent to 0 /8s, 197 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 25.7
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4538 3353 3245 44 China Education and Research
17488 1425 100 114 Hathway IP Over Cable Interne
4755 1179 563 102 Videsh Sanchar Nigam Ltd. Aut
9583 1152 87 480 Sify Limited
4766 1032 6409 366 Korea Telecom (KIX)
4134 909 14768 369 CHINANET-BACKBONE
18101 785 167 31 Reliance Infocom Ltd Internet
23577 770 33 690 Korea Telecom (ATM-MPLS)
4780 735 357 63 Digital United Inc.
9498 687 295 50 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 4366 3431 338 bellsouth.net, inc.
6298 2156 333 634 Cox Communicatons
20115 1841 1461 735 Charter Communications
1785 1704 717 155 AppliedTheory Corporation
6478 1678 369 201 AT&T Worldnet Services
2386 1599 686 911 AT&T Data Communications Serv
4323 1590 1068 378 Time Warner Telecom
7018 1409 9926 970 AT&T WorldNet Services
1803 1341 9 1072 SPRINT
11492 1217 192 12 Cable One
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 433 1765 378 TDC Tele Danmark
12479 370 578 6 Uni2 Autonomous System
30890 366 95 188 SC Kappa Invexim SRL
3301 338 1429 307 TeliaNet Sweden
8866 337 111 23 Bulgarian Telecommunication C
29049 337 26 3 AzerSat LLC.
5462 325 794 27 Telewest Broadband
3320 324 7062 272 Deutsche Telekom AG
8452 324 188 11 TEDATA
3215 316 2788 99 France Telecom Transpac
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 1752 244 75 Telecom Argentina Stet-France
8151 1389 2832 218 UniNet S.A. de C.V.
11830 671 299 9 Instituto Costarricense de El
10620 568 128 51 TVCABLE BOGOTA
22047 533 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 425 88 50 ENTEL CHILE S.A.
11172 402 118 72 Servicios Alestra S.A de C.V
16735 380 92 9 Companhia de Telecomunicacoes
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 563 71 44 LINKdotNET AS number
3741 270 857 227 The Internet Solution
20858 261 34 3 EgyNet
2018 239 215 139 Tertiary Education Network
29571 147 13 8 Ci Telecom Autonomous system
6713 144 135 11 Itissalat Al-MAGHRIB
33783 142 10 17 EEPAD TISP TELECOM & INTERNET
5713 121 555 70 Telkom SA Ltd
5536 120 8 17 Internet Egypt Network
33776 116 6 3 Starcomms Nigeria Limited
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 4366 3431 338 bellsouth.net, inc.
4538 3353 3245 44 China Education and Research
6298 2156 333 634 Cox Communicatons
20115 1841 1461 735 Charter Communications
7303 1752 244 75 Telecom Argentina Stet-France
1785 1704 717 155 AppliedTheory Corporation
6478 1678 369 201 AT&T Worldnet Services
2386 1599 686 911 AT&T Data Communications Serv
4323 1590 1068 378 Time Warner Telecom
17488 1425 100 114 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3353 3309 China Education and Research
7303 1752 1677 Telecom Argentina Stet-France
1785 1704 1549 AppliedTheory Corporation
6298 2156 1522 Cox Communicatons
6478 1678 1477 AT&T Worldnet Services
17488 1425 1311 Hathway IP Over Cable Interne
4323 1590 1212 Time Warner Telecom
11492 1217 1205 Cable One
8151 1389 1171 UniNet S.A. de C.V.
20115 1841 1106 Charter 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
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
25639 UNALLOCATED 12.41.169.0/24 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
10.29.248.65/32 286 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
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 22555 Universal Talkware Corporatio
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 /10:19 /11:55 /12:161
/13:315 /14:554 /15:1089 /16:10255 /17:4515 /18:7725
/19:16550 /20:19827 /21:19310 /22:25106 /23:25519 /24:146430
/25:653 /26:743 /27:383 /28:808 /29:401 /30:154
/31:0 /32:248
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2857 4366 bellsouth.net, inc.
6298 2130 2156 Cox Communicatons
4538 1800 3353 China Education and Research
1803 1319 1341 SPRINT
7303 1284 1752 Telecom Argentina Stet-France
2386 1279 1599 AT&T Data Communications Serv
17488 1215 1425 Hathway IP Over Cable Interne
11492 1192 1217 Cable One
1785 1163 1704 AppliedTheory Corporation
6478 1106 1678 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:12 8:162 12:2197 13:2 15:21
16:3 17:5 20:36 24:1140 30:1 32:139
38:519 40:93 41:798 43:1 44:2 47:12
52:3 55:3 56:3 57:48 58:541 59:624
60:454 61:1068 62:1187 63:1939 64:3305 65:2422
66:3574 67:1336 68:850 69:2363 70:897 71:172
72:2105 73:7 74:1308 75:170 76:290 77:893
78:520 79:291 80:936 81:865 82:609 83:411
84:589 85:1060 86:507 87:672 88:356 89:1369
90:29 91:1695 92:309 93:1001 94:686 95:29
96:90 97:137 98:395 99:15 100:1 113:40
114:135 115:156 116:1065 117:400 118:307 119:552
120:106 121:673 122:882 123:465 124:850 125:1270
128:359 129:219 130:135 131:410 132:72 133:9
134:188 135:31 136:220 137:118 138:144 139:92
140:431 141:111 142:393 143:309 144:301 145:52
146:365 147:143 148:602 149:291 150:143 151:210
152:140 153:138 154:10 155:277 156:175 157:301
158:166 159:299 160:273 161:132 162:250 163:136
164:516 165:510 166:365 167:339 168:645 169:155
170:483 171:40 172:10 173:141 174:5 187:18
188:1 189:356 190:2658 192:5864 193:4231 194:3390
195:2689 196:1024 198:3721 199:3297 200:5858 201:1616
202:8099 203:8067 204:3923 205:2187 206:2305 207:2735
208:3751 209:3401 210:3043 211:1325 212:1560 213:1692
214:70 215:25 216:4380 217:1243 218:416 219:500
220:1082 221:438 222:432
End of report