Routing Table Report 00:00 GMT Sat 16 Aug, 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: 273144
Prefixes after maximum aggregation: 131011
Deaggregation factor: 2.08
Unique aggregates announced to Internet: 129132
Total ASes present in the Internet Routing Table: 28993
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 25187
Origin ASes announcing only one prefix: 12208
Transit ASes present in the Internet Routing Table: 3806
Transit-only ASes present in the Internet Routing Table: 85
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 26
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 594
Unregistered ASNs in the Routing Table: 224
Number of 32-bit ASNs allocated by the RIRs: 57
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 833
Number of addresses announced to Internet: 1910292116
Equivalent to 113 /8s, 220 /16s and 190 /24s
Percentage of available address space announced: 51.5
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.2
Total number of prefixes smaller than registry allocations: 135247
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64117
Total APNIC prefixes after maximum aggregation: 22623
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 61194
Unique aggregates announced from the APNIC address blocks: 25807
APNIC Region origin ASes present in the Internet Routing Table: 3333
APNIC Prefixes per ASN: 18.36
APNIC Region origin ASes announcing only one prefix: 886
APNIC Region transit ASes present in the Internet Routing Table: 530
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 371809184
Equivalent to 22 /8s, 41 /16s and 91 /24s
Percentage of available APNIC address space announced: 79.1
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: 122911
Total ARIN prefixes after maximum aggregation: 66467
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91327
Unique aggregates announced from the ARIN address blocks: 34835
ARIN Region origin ASes present in the Internet Routing Table: 12377
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4763
ARIN Region transit ASes present in the Internet Routing Table: 1211
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 362072833
Equivalent to 21 /8s, 148 /16s and 203 /24s
Percentage of available ARIN address space announced: 74.4
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: 58131
Total RIPE prefixes after maximum aggregation: 34892
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 53515
Unique aggregates announced from the RIPE address blocks: 35178
RIPE Region origin ASes present in the Internet Routing Table: 11749
RIPE Prefixes per ASN: 4.55
RIPE Region origin ASes announcing only one prefix: 6166
RIPE Region transit ASes present in the Internet Routing Table: 1800
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 369133056
Equivalent to 22 /8s, 0 /16s and 134 /24s
Percentage of available RIPE address space announced: 84.6
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, 47104-48127
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: 23399
Total LACNIC prefixes after maximum aggregation: 5314
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 21654
Unique aggregates announced from the LACNIC address blocks: 10791
LACNIC Region origin ASes present in the Internet Routing Table: 984
LACNIC Prefixes per ASN: 22.01
LACNIC Region origin ASes announcing only one prefix: 312
LACNIC Region transit ASes present in the Internet Routing Table: 170
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 54412780
Equivalent to 3 /8s, 62 /16s and 69 /24s
Percentage of available LACNIC address space announced: 54.1
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: 3992
Total AfriNIC prefixes after maximum aggregation: 1234
AfriNIC Deaggregation factor: 3.24
Prefixes being announced from the AfriNIC address blocks: 4345
Unique aggregates announced from the AfriNIC address blocks: 1866
AfriNIC Region origin ASes present in the Internet Routing Table: 252
AfriNIC Prefixes per ASN: 17.24
AfriNIC Region origin ASes announcing only one prefix: 81
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 12721152
Equivalent to 0 /8s, 194 /16s and 28 /24s
Percentage of available AfriNIC address space announced: 37.9
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 3294 3134 41 China Education and Research
4755 1701 579 93 Videsh Sanchar Nigam Ltd. Aut
17488 1300 89 99 Hathway IP Over Cable Interne
9583 1177 92 494 Sify Limited
4134 849 13523 339 CHINANET-BACKBONE
4766 829 6390 352 Korea Telecom (KIX)
23577 825 33 730 Korea Telecom (ATM-MPLS)
4780 719 353 61 Digital United Inc.
18101 692 167 33 Reliance Infocom Ltd Internet
9498 673 291 54 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 3197 3358 208 bellsouth.net, inc.
6298 2004 323 731 Cox Communicatons
2386 1560 677 907 AT&T Data Communications Serv
4323 1489 1076 378 Time Warner Telecom
1785 1454 478 100 AppliedTheory Corporation
3549 1443 539 212 Global Crossing
7018 1414 9919 982 AT&T WorldNet Services
1803 1262 7 1000 SPRINT
11492 1214 151 22 Cable One
20115 1113 1080 573 Charter Communications
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 418 1776 373 TDC Tele Danmark
3215 395 2756 106 France Telecom Transpac
8452 357 188 11 TEDATA
3301 332 1444 303 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8866 317 77 21 Bulgarian Telecommunication C
5462 307 666 27 Telewest Broadband
8551 289 270 39 Bezeq International
1257 278 1131 203 SWIPnet Swedish IP Network
680 274 2047 264 DFN-IP service G-WiN
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 1700 236 65 Telecom Argentina Stet-France
8151 1494 2543 212 UniNet S.A. de C.V.
8167 667 593 43 TELESC - Telecomunicacoes de
11830 664 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 417 85 48 ENTEL CHILE S.A.
16735 409 92 12 Companhia de Telecomunicacoes
11172 404 86 68 Servicios Alestra S.A de C.V
10620 371 99 90 TVCABLE BOGOTA
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 495 64 27 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 265 855 223 The Internet Solution
2018 211 213 130 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 136 10 13 EEPAD TISP TELECOM & INTERNET
5713 129 540 74 Telkom SA Ltd
5536 120 8 17 Internet Egypt Network
33776 119 6 3 Starcomms Nigeria Limited
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
4538 3294 3134 41 China Education and Research
6389 3197 3358 208 bellsouth.net, inc.
6298 2004 323 731 Cox Communicatons
4755 1701 579 93 Videsh Sanchar Nigam Ltd. Aut
7303 1700 236 65 Telecom Argentina Stet-France
2386 1560 677 907 AT&T Data Communications Serv
8151 1494 2543 212 UniNet S.A. de C.V.
4323 1489 1076 378 Time Warner Telecom
1785 1454 478 100 AppliedTheory Corporation
3549 1443 539 212 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3197 2989 bellsouth.net, inc.
7303 1700 1635 Telecom Argentina Stet-France
4755 1701 1608 Videsh Sanchar Nigam Ltd. Aut
1785 1454 1354 AppliedTheory Corporation
8151 1494 1282 UniNet S.A. de C.V.
6298 2004 1273 Cox Communicatons
3549 1443 1231 Global Crossing
17488 1300 1201 Hathway IP Over Cable Interne
11492 1214 1192 Cable One
4323 1489 1111 Time Warner Telecom
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
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 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
10.29.246.49/32 286 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
24.51.159.0/24 7843 Adelphia Corp.
24.53.86.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.55.0.0/18 20001 HoldCo 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
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 /14:534 /15:1064 /16:10124 /17:4402 /18:7605
/19:16010 /20:19025 /21:18388 /22:23763 /23:24596 /24:142673
/25:873 /26:1137 /27:388 /28:737 /29:840 /30:225
/31:0 /32:224
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2034 3197 bellsouth.net, inc.
6298 1977 2004 Cox Communicatons
4538 1759 3294 China Education and Research
1803 1240 1262 SPRINT
2386 1239 1560 AT&T Data Communications Serv
7303 1203 1700 Telecom Argentina Stet-France
11492 1195 1214 Cable One
17488 1107 1300 Hathway IP Over Cable Interne
3549 1080 1443 Global Crossing
1785 1069 1454 AppliedTheory Corporation
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:133 12:2119 13:2 14:2 15:22
16:3 17:5 18:13 20:37 24:1085 32:197
38:483 40:92 41:697 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:48 58:559
59:578 60:452 61:995 62:1248 63:1961 64:3388
65:2357 66:3446 67:1222 68:766 69:2286 70:864
71:132 72:2037 73:7 74:1101 75:166 76:319
77:758 78:817 79:225 80:979 81:872 82:624
83:386 84:573 85:983 86:400 87:717 88:339
89:1318 90:39 91:1423 92:243 93:808 94:109
96:54 97:51 98:307 99:3 114:90 115:40
116:962 117:346 118:198 119:460 120:75 121:606
122:819 123:379 124:894 125:1230 128:354 129:204
130:135 131:410 132:70 133:9 134:188 135:33
136:217 137:94 138:145 139:101 140:478 141:103
142:407 143:338 144:401 145:51 146:384 147:156
148:516 149:200 150:129 151:182 152:148 153:143
154:10 155:278 156:173 157:290 158:166 159:294
160:273 161:119 162:263 163:155 164:518 165:461
166:378 167:334 168:629 169:138 170:451 171:33
172:10 173:12 188:1 189:515 190:2344 192:5807
193:4222 194:3283 195:2609 196:1003 198:3732 199:3313
200:5976 201:1706 202:8224 203:8075 204:3961 205:2153
206:2452 207:2773 208:3641 209:3392 210:2964 211:1239
212:1442 213:1625 214:180 215:50 216:4334 217:1212
218:404 219:517 220:1064 221:457 222:440
End of report