Routing Table Report 00:00 GMT Fri 07 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: 278809
Prefixes after maximum aggregation: 133053
Deaggregation factor: 2.10
Unique aggregates announced to Internet: 132931
Total ASes present in the Internet Routing Table: 29771
Prefixes per ASN: 9.37
Origin-only ASes present in the Internet Routing Table: 25786
Origin ASes announcing only one prefix: 12600
Transit ASes present in the Internet Routing Table: 3985
Transit-only ASes present in the Internet Routing Table: 95
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 570
Unregistered ASNs in the Routing Table: 209
Number of 32-bit ASNs allocated by the RIRs: 62
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: 206
Number of addresses announced to Internet: 1921342332
Equivalent to 114 /8s, 133 /16s and 91 /24s
Percentage of available address space announced: 51.8
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 82.8
Percentage of address space in use by end-sites: 74.2
Total number of prefixes smaller than registry allocations: 137945
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65795
Total APNIC prefixes after maximum aggregation: 23256
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 62737
Unique aggregates announced from the APNIC address blocks: 26550
APNIC Region origin ASes present in the Internet Routing Table: 3453
APNIC Prefixes per ASN: 18.17
APNIC Region origin ASes announcing only one prefix: 941
APNIC Region transit ASes present in the Internet Routing Table: 546
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 380802848
Equivalent to 22 /8s, 178 /16s and 151 /24s
Percentage of available APNIC address space announced: 81.1
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: 123940
Total ARIN prefixes after maximum aggregation: 66496
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 92470
Unique aggregates announced from the ARIN address blocks: 35667
ARIN Region origin ASes present in the Internet Routing Table: 12590
ARIN Prefixes per ASN: 7.34
ARIN Region origin ASes announcing only one prefix: 4850
ARIN Region transit ASes present in the Internet Routing Table: 1252
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 369532417
Equivalent to 22 /8s, 6 /16s and 158 /24s
Percentage of available ARIN address space announced: 76.0
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: 60375
Total RIPE prefixes after maximum aggregation: 35994
RIPE Deaggregation factor: 1.68
Prefixes being announced from the RIPE address blocks: 56510
Unique aggregates announced from the RIPE address blocks: 36932
RIPE Region origin ASes present in the Internet Routing Table: 12157
RIPE Prefixes per ASN: 4.65
RIPE Region origin ASes announcing only one prefix: 6398
RIPE Region transit ASes present in the Internet Routing Table: 1903
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 377653447
Equivalent to 22 /8s, 130 /16s and 136 /24s
Percentage of available RIPE address space announced: 86.6
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: 23983
Total LACNIC prefixes after maximum aggregation: 5515
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 21980
Unique aggregates announced from the LACNIC address blocks: 11320
LACNIC Region origin ASes present in the Internet Routing Table: 1025
LACNIC Prefixes per ASN: 21.44
LACNIC Region origin ASes announcing only one prefix: 329
LACNIC Region transit ASes present in the Internet Routing Table: 169
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 57661966
Equivalent to 3 /8s, 111 /16s and 218 /24s
Percentage of available LACNIC address space announced: 57.3
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: 4153
Total AfriNIC prefixes after maximum aggregation: 1360
AfriNIC Deaggregation factor: 3.05
Prefixes being announced from the AfriNIC address blocks: 4425
Unique aggregates announced from the AfriNIC address blocks: 2104
AfriNIC Region origin ASes present in the Internet Routing Table: 265
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: 50
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12851072
Equivalent to 0 /8s, 196 /16s and 23 /24s
Percentage of available AfriNIC address space announced: 25.5
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 3352 3245 44 China Education and Research
4755 1504 575 115 Videsh Sanchar Nigam Ltd. Aut
17488 1408 99 103 Hathway IP Over Cable Interne
9583 1113 87 476 Sify Limited
4134 886 13772 359 CHINANET-BACKBONE
4766 854 6408 366 Korea Telecom (KIX)
18101 783 161 67 Reliance Infocom Ltd Internet
23577 776 34 694 Korea Telecom (ATM-MPLS)
4780 730 357 63 Digital United Inc.
9498 696 295 55 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 4352 3405 341 bellsouth.net, inc.
6298 2083 326 691 Cox Communicatons
1785 1695 717 154 AppliedTheory Corporation
20115 1658 1449 724 Charter Communications
6478 1650 363 193 AT&T Worldnet Services
2386 1588 700 899 AT&T Data Communications Serv
4323 1573 1082 376 Time Warner Telecom
7018 1410 9943 974 AT&T WorldNet Services
1803 1391 9 1093 SPRINT
11492 1210 149 16 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 434 1766 380 TDC Tele Danmark
30890 348 94 188 SC Kappa Invexim SRL
8866 347 111 23 Bulgarian Telecommunication C
3215 331 2788 99 France Telecom Transpac
3301 330 1428 301 TeliaNet Sweden
3320 326 7063 274 Deutsche Telekom AG
8452 324 188 11 TEDATA
5462 322 794 27 Telewest Broadband
25233 289 44 24 Awalnet
8551 286 270 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 1744 244 72 Telecom Argentina Stet-France
8151 1395 2833 223 UniNet S.A. de C.V.
11830 670 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
10620 545 126 59 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
16735 424 92 10 Companhia de Telecomunicacoes
6471 421 86 50 ENTEL CHILE S.A.
11172 407 118 72 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 539 70 58 LINKdotNET AS number
3741 269 856 226 The Internet Solution
20858 246 34 3 EgyNet
2018 236 215 139 Tertiary Education Network
24835 152 48 6 RAYA Telecom - Egypt
6713 144 135 11 Itissalat Al-MAGHRIB
33783 141 10 15 EEPAD TISP TELECOM & INTERNET
33776 116 6 3 Starcomms Nigeria Limited
5713 113 539 62 Telkom SA Ltd
29571 113 13 9 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 4352 3405 341 bellsouth.net, inc.
4538 3352 3245 44 China Education and Research
6298 2083 326 691 Cox Communicatons
7303 1744 244 72 Telecom Argentina Stet-France
1785 1695 717 154 AppliedTheory Corporation
20115 1658 1449 724 Charter Communications
6478 1650 363 193 AT&T Worldnet Services
2386 1588 700 899 AT&T Data Communications Serv
4323 1573 1082 376 Time Warner Telecom
4755 1504 575 115 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3352 3308 China Education and Research
7303 1744 1672 Telecom Argentina Stet-France
1785 1695 1541 AppliedTheory Corporation
6478 1650 1457 AT&T Worldnet Services
6298 2083 1392 Cox Communicatons
4755 1504 1389 Videsh Sanchar Nigam Ltd. Aut
17488 1408 1305 Hathway IP Over Cable Interne
4323 1573 1197 Time Warner Telecom
11492 1210 1194 Cable One
8151 1395 1172 UniNet S.A. de C.V.
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 7018 AT&T WorldNet Servic
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 /8:18 /9:9 /10:18 /11:47 /12:153
/13:306 /14:546 /15:1082 /16:10228 /17:4462 /18:7710
/19:16470 /20:19693 /21:19135 /22:24798 /23:25432 /24:145310
/25:653 /26:724 /27:380 /28:800 /29:400 /30:187
/31:0 /32:248
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2848 4352 bellsouth.net, inc.
6298 2057 2083 Cox Communicatons
4538 1797 3352 China Education and Research
1803 1368 1391 SPRINT
7303 1276 1744 Telecom Argentina Stet-France
2386 1269 1588 AT&T Data Communications Serv
17488 1196 1408 Hathway IP Over Cable Interne
11492 1187 1210 Cable One
1785 1157 1695 AppliedTheory Corporation
6478 1105 1650 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 8:157 12:2194 13:2 15:21 16:3
17:5 20:35 24:1102 32:135 38:520 40:92
41:760 43:1 44:2 47:13 52:3 55:3
56:3 57:48 58:552 59:604 60:452 61:1060
62:1193 63:1934 64:3287 65:2409 66:3544 67:1300
68:811 69:2335 70:878 71:138 72:2091 73:7
74:1281 75:168 76:291 77:888 78:520 79:286
80:939 81:866 82:652 83:406 84:590 85:1069
86:509 87:718 88:355 89:1359 90:25 91:1679
92:250 93:901 94:288 95:4 96:86 97:127
98:386 99:15 113:40 114:123 115:144 116:1054
117:407 118:244 119:516 120:102 121:635 122:854
123:463 124:863 125:1274 128:353 129:217 130:135
131:408 132:72 133:9 134:187 135:31 136:224
137:102 138:145 139:89 140:427 141:111 142:391
143:309 144:301 145:52 146:370 147:141 148:603
149:298 150:129 151:208 152:150 153:144 154:10
155:274 156:174 157:303 158:169 159:300 160:272
161:140 162:255 163:136 164:517 165:509 166:363
167:341 168:632 169:155 170:482 171:40 172:10
173:129 187:18 188:1 189:347 190:2615 192:5844
193:4269 194:3397 195:2704 196:1022 198:3708 199:3311
200:5904 201:1642 202:8193 203:8062 204:3913 205:2177
206:2318 207:2731 208:3727 209:3417 210:3007 211:1293
212:1549 213:1669 214:69 215:25 216:4382 217:1259
218:413 219:518 220:1062 221:418 222:426
End of report