Routing Table Report 00:00 GMT Fri 15 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: 273061
Prefixes after maximum aggregation: 130961
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 129123
Total ASes present in the Internet Routing Table: 28969
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 25168
Origin ASes announcing only one prefix: 12199
Transit ASes present in the Internet Routing Table: 3801
Transit-only ASes present in the Internet Routing Table: 88
Average AS path length visible in the Internet Routing Table: 5.3
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: 58
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: 819
Number of addresses announced to Internet: 1909921468
Equivalent to 113 /8s, 215 /16s and 22 /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: 135143
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64073
Total APNIC prefixes after maximum aggregation: 22617
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 61158
Unique aggregates announced from the APNIC address blocks: 25910
APNIC Region origin ASes present in the Internet Routing Table: 3331
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: 531
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 371499424
Equivalent to 22 /8s, 36 /16s and 161 /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: 122930
Total ARIN prefixes after maximum aggregation: 66483
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91321
Unique aggregates announced from the ARIN address blocks: 34836
ARIN Region origin ASes present in the Internet Routing Table: 12367
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4758
ARIN Region transit ASes present in the Internet Routing Table: 1205
Average ARIN Region AS path length visible: 5.1
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 362042369
Equivalent to 21 /8s, 148 /16s and 84 /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: 58065
Total RIPE prefixes after maximum aggregation: 34857
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 53440
Unique aggregates announced from the RIPE address blocks: 35104
RIPE Region origin ASes present in the Internet Routing Table: 11734
RIPE Prefixes per ASN: 4.55
RIPE Region origin ASes announcing only one prefix: 6158
RIPE Region transit ASes present in the Internet Routing Table: 1798
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 369067264
Equivalent to 21 /8s, 255 /16s and 133 /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: 23355
Total LACNIC prefixes after maximum aggregation: 5288
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 21609
Unique aggregates announced from the LACNIC address blocks: 10755
LACNIC Region origin ASes present in the Internet Routing Table: 981
LACNIC Prefixes per ASN: 22.03
LACNIC Region origin ASes announcing only one prefix: 315
LACNIC Region transit ASes present in the Internet Routing Table: 165
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 54421268
Equivalent to 3 /8s, 62 /16s and 103 /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: 4044
Total AfriNIC prefixes after maximum aggregation: 1233
AfriNIC Deaggregation factor: 3.28
Prefixes being announced from the AfriNIC address blocks: 4386
Unique aggregates announced from the AfriNIC address blocks: 1873
AfriNIC Region origin ASes present in the Internet Routing Table: 253
AfriNIC Prefixes per ASN: 17.34
AfriNIC Region origin ASes announcing only one prefix: 82
AfriNIC Region transit ASes present in the Internet Routing Table: 48
Average AfriNIC Region AS path length visible: 5.6
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12743424
Equivalent to 0 /8s, 194 /16s and 115 /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 3293 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 720 353 61 Digital United Inc.
18101 691 167 32 Reliance Infocom Ltd Internet
9498 674 291 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 3157 3328 201 bellsouth.net, inc.
6298 2003 307 734 Cox Communicatons
2386 1560 691 898 AT&T Data Communications Serv
4323 1488 1076 378 Time Warner Telecom
1785 1454 478 100 AppliedTheory Corporation
3549 1445 539 210 Global Crossing
7018 1410 9917 983 AT&T WorldNet Services
1803 1259 7 997 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 333 1460 304 TeliaNet Sweden
3320 323 7047 271 Deutsche Telekom AG
8866 316 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 1518 2593 222 UniNet S.A. de C.V.
8167 669 593 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.
11172 408 118 70 Servicios Alestra S.A de C.V
16735 408 92 12 Companhia de Telecomunicacoes
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 496 64 28 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 3293 3134 41 China Education and Research
6389 3157 3328 201 bellsouth.net, inc.
6298 2003 307 734 Cox Communicatons
4755 1701 579 93 Videsh Sanchar Nigam Ltd. Aut
7303 1700 236 65 Telecom Argentina Stet-France
2386 1560 691 898 AT&T Data Communications Serv
8151 1518 2593 222 UniNet S.A. de C.V.
4323 1488 1076 378 Time Warner Telecom
1785 1454 478 100 AppliedTheory Corporation
3549 1445 539 210 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 3157 2956 bellsouth.net, inc.
7303 1700 1635 Telecom Argentina Stet-France
4755 1701 1608 Videsh Sanchar Nigam Ltd. Aut
1785 1454 1354 AppliedTheory Corporation
8151 1518 1296 UniNet S.A. de C.V.
6298 2003 1269 Cox Communicatons
3549 1445 1235 Global Crossing
17488 1300 1201 Hathway IP Over Cable Interne
11492 1214 1192 Cable One
4323 1488 1110 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 /16:10120 /17:4398 /18:7613
/19:16015 /20:19029 /21:18392 /22:23764 /23:24570 /24:142629
/25:873 /26:1125 /27:386 /28:732 /29:839 /30:217
/31:0 /32:225
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1995 3157 bellsouth.net, inc.
6298 1977 2003 Cox Communicatons
4538 1758 3293 China Education and Research
2386 1239 1560 AT&T Data Communications Serv
1803 1237 1259 SPRINT
7303 1203 1700 Telecom Argentina Stet-France
11492 1195 1214 Cable One
17488 1107 1300 Hathway IP Over Cable Interne
3549 1084 1445 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 8:134 12:2115 13:2 14:2 15:22
16:3 17:5 18:13 20:37 24:1083 32:197
38:481 40:92 41:698 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:48 58:558
59:582 60:457 61:996 62:1234 63:1959 64:3393
65:2359 66:3448 67:1222 68:768 69:2284 70:861
71:134 72:2035 73:7 74:1100 75:165 76:320
77:750 78:817 79:223 80:978 81:872 82:625
83:386 84:575 85:978 86:399 87:717 88:339
89:1312 90:39 91:1425 92:241 93:800 94:101
96:54 97:49 98:308 99:3 114:85 115:39
116:960 117:346 118:198 119:415 120:76 121:605
122:822 123:379 124:893 125:1230 128:355 129:204
130:135 131:409 132:70 133:9 134:187 135:33
136:223 137:94 138:145 139:96 140:502 141:103
142:407 143:340 144:401 145:51 146:384 147:156
148:518 149:202 150:129 151:184 152:147 153:143
154:10 155:278 156:173 157:289 158:166 159:294
160:272 161:119 162:264 163:155 164:518 165:461
166:379 167:333 168:626 169:138 170:451 171:33
172:10 188:1 189:512 190:2345 192:5814 193:4220
194:3281 195:2607 196:1018 198:3740 199:3314 200:5971
201:1692 202:8225 203:8101 204:3966 205:2155 206:2447
207:2763 208:3634 209:3397 210:2972 211:1240 212:1444
213:1625 214:179 215:50 216:4345 217:1211 218:404
219:515 220:1064 221:457 222:438
End of report