Routing Table Report 00:00 GMT Sat 29 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: 281623
Prefixes after maximum aggregation: 133441
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 133124
Total ASes present in the Internet Routing Table: 29966
Prefixes per ASN: 9.40
Origin-only ASes present in the Internet Routing Table: 26034
Origin ASes announcing only one prefix: 12679
Transit ASes present in the Internet Routing Table: 3932
Transit-only ASes present in the Internet Routing Table: 94
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 21
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 603
Unregistered ASNs in the Routing Table: 204
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: 198
Number of addresses announced to Internet: 1966065560
Equivalent to 117 /8s, 47 /16s and 199 /24s
Percentage of available address space announced: 53.0
Percentage of allocated address space announced: 63.4
Percentage of available address space allocated: 83.7
Percentage of address space in use by end-sites: 74.5
Total number of prefixes smaller than registry allocations: 140177
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 66399
Total APNIC prefixes after maximum aggregation: 23320
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 63347
Unique aggregates announced from the APNIC address blocks: 26744
APNIC Region origin ASes present in the Internet Routing Table: 3474
APNIC Prefixes per ASN: 18.23
APNIC Region origin ASes announcing only one prefix: 939
APNIC Region transit ASes present in the Internet Routing Table: 535
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 388862752
Equivalent to 23 /8s, 45 /16s and 147 /24s
Percentage of available APNIC address space announced: 77.3
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: 124969
Total ARIN prefixes after maximum aggregation: 66432
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 93364
Unique aggregates announced from the ARIN address blocks: 34791
ARIN Region origin ASes present in the Internet Routing Table: 12640
ARIN Prefixes per ASN: 7.39
ARIN Region origin ASes announcing only one prefix: 4874
ARIN Region transit ASes present in the Internet Routing Table: 1227
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 402046721
Equivalent to 23 /8s, 246 /16s and 191 /24s
Percentage of available ARIN address space announced: 82.6
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: 61207
Total RIPE prefixes after maximum aggregation: 36353
RIPE Deaggregation factor: 1.68
Prefixes being announced from the RIPE address blocks: 57263
Unique aggregates announced from the RIPE address blocks: 37459
RIPE Region origin ASes present in the Internet Routing Table: 12258
RIPE Prefixes per ASN: 4.67
RIPE Region origin ASes announcing only one prefix: 6449
RIPE Region transit ASes present in the Internet Routing Table: 1886
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 380570343
Equivalent to 22 /8s, 175 /16s and 10 /24s
Percentage of available RIPE address space announced: 87.2
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: 24320
Total LACNIC prefixes after maximum aggregation: 5553
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 22363
Unique aggregates announced from the LACNIC address blocks: 11455
LACNIC Region origin ASes present in the Internet Routing Table: 1041
LACNIC Prefixes per ASN: 21.48
LACNIC Region origin ASes announcing only one prefix: 334
LACNIC Region transit ASes present in the Internet Routing Table: 170
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 58484746
Equivalent to 3 /8s, 124 /16s and 104 /24s
Percentage of available LACNIC address space announced: 58.1
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: 4134
Total AfriNIC prefixes after maximum aggregation: 1348
AfriNIC Deaggregation factor: 3.07
Prefixes being announced from the AfriNIC address blocks: 4420
Unique aggregates announced from the AfriNIC address blocks: 2198
AfriNIC Region origin ASes present in the Internet Routing Table: 271
AfriNIC Prefixes per ASN: 16.31
AfriNIC Region origin ASes announcing only one prefix: 83
AfriNIC Region transit ASes present in the Internet Routing Table: 55
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 13023104
Equivalent to 0 /8s, 198 /16s and 183 /24s
Percentage of available AfriNIC address space announced: 25.9
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 3361 3245 44 China Education and Research
17488 1442 101 104 Hathway IP Over Cable Interne
4766 1164 6409 366 Korea Telecom (KIX)
4755 1161 563 103 Videsh Sanchar Nigam Ltd. Aut
9583 1137 88 481 Sify Limited
4134 911 15536 371 CHINANET-BACKBONE
18101 787 168 32 Reliance Infocom Ltd Internet
23577 768 33 686 Korea Telecom (ATM-MPLS)
4780 731 357 63 Digital United Inc.
9498 690 295 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 4376 3434 344 bellsouth.net, inc.
6298 2173 335 633 Cox Communicatons
20115 1841 1460 737 Charter Communications
1785 1703 717 154 AppliedTheory Corporation
6478 1609 369 198 AT&T Worldnet Services
2386 1594 700 901 AT&T Data Communications Serv
4323 1589 1066 377 Time Warner Telecom
7018 1423 9975 980 AT&T WorldNet Services
1803 1328 7 1063 SPRINT
11492 1219 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 439 1765 383 TDC Tele Danmark
12479 371 578 6 Uni2 Autonomous System
30890 369 80 196 SC Kappa Invexim SRL
3301 337 1429 306 TeliaNet Sweden
29049 331 26 3 AzerSat LLC.
8866 330 109 22 Bulgarian Telecommunication C
3320 327 7063 275 Deutsche Telekom AG
3215 314 2776 97 France Telecom Transpac
8452 311 188 11 TEDATA
8551 303 286 36 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 1750 244 72 Telecom Argentina Stet-France
8151 1399 2832 221 UniNet S.A. de C.V.
11830 664 299 9 Instituto Costarricense de El
22047 552 270 14 VTR PUNTO NET S.A.
10620 546 122 40 TVCABLE BOGOTA
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 381 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 513 72 46 LINKdotNET AS number
3741 269 857 226 The Internet Solution
20858 262 34 3 EgyNet
2018 239 215 140 Tertiary Education Network
33783 143 10 17 EEPAD TISP TELECOM & INTERNET
6713 137 135 11 Itissalat Al-MAGHRIB
5536 120 8 17 Internet Egypt Network
5713 119 555 68 Telkom SA Ltd
33776 116 6 3 Starcomms Nigeria Limited
29571 113 15 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 4376 3434 344 bellsouth.net, inc.
4538 3361 3245 44 China Education and Research
6298 2173 335 633 Cox Communicatons
20115 1841 1460 737 Charter Communications
7303 1750 244 72 Telecom Argentina Stet-France
1785 1703 717 154 AppliedTheory Corporation
6478 1609 369 198 AT&T Worldnet Services
2386 1594 700 901 AT&T Data Communications Serv
4323 1589 1066 377 Time Warner Telecom
17488 1442 101 104 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 3361 3317 China Education and Research
7303 1750 1678 Telecom Argentina Stet-France
1785 1703 1549 AppliedTheory Corporation
6298 2173 1540 Cox Communicatons
6478 1609 1411 AT&T Worldnet Services
17488 1442 1338 Hathway IP Over Cable Interne
4323 1589 1212 Time Warner Telecom
11492 1219 1207 Cable One
8151 1399 1178 UniNet S.A. de C.V.
20115 1841 1104 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 /11:56 /12:162
/13:316 /14:556 /15:1090 /16:10268 /17:4526 /18:7754
/19:16562 /20:19841 /21:19296 /22:25124 /23:25606 /24:146978
/25:659 /26:745 /27:383 /28:809 /29:408 /30:189
/31:0 /32:248
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2859 4376 bellsouth.net, inc.
6298 2147 2173 Cox Communicatons
4538 1801 3361 China Education and Research
1803 1307 1328 SPRINT
7303 1282 1750 Telecom Argentina Stet-France
2386 1273 1594 AT&T Data Communications Serv
17488 1232 1442 Hathway IP Over Cable Interne
11492 1194 1219 Cable One
1785 1164 1703 AppliedTheory Corporation
6478 1106 1609 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:12 8:163 12:2201 13:2 15:21 16:3
17:5 20:36 24:1140 32:139 38:519 40:93
41:805 43:1 44:2 47:12 52:3 55:3
56:3 57:48 58:541 59:635 60:457 61:1069
62:1195 63:1939 64:3366 65:2431 66:3585 67:1367
68:852 69:2372 70:898 71:172 72:2106 73:7
74:1314 75:172 76:290 77:898 78:523 79:250
80:913 81:858 82:593 83:412 84:573 85:1037
86:507 87:631 88:352 89:1362 90:29 91:1691
92:326 93:1048 94:725 95:49 96:92 97:138
98:403 99:9 100:1 110:1 111:1 113:41
114:132 115:165 116:1082 117:413 118:269 119:556
120:107 121:703 122:895 123:455 124:850 125:1294
128:358 129:219 130:136 131:411 132:72 133:9
134:188 135:31 136:223 137:116 138:144 139:93
140:428 141:111 142:371 143:303 144:308 145:52
146:373 147:143 148:604 149:291 150:143 151:210
152:140 153:138 154:10 155:276 156:165 157:303
158:169 159:298 160:273 161:132 162:252 163:133
164:517 165:523 166:363 167:340 168:651 169:155
170:484 171:40 172:10 173:126 174:7 187:18
188:1 189:374 190:2707 192:5864 193:4258 194:3393
195:2687 196:1002 198:3720 199:3318 200:5897 201:1615
202:8136 203:8064 204:3919 205:2190 206:2318 207:2738
208:3785 209:3478 210:3053 211:1333 212:1554 213:1673
214:69 215:25 216:4433 217:1229 218:423 219:506
220:1098 221:459 222:436
End of report