Routing Table Report 00:00 GMT Thu 12 Jun, 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: 265407
Prefixes after maximum aggregation: 129431
Deaggregation factor: 2.05
Unique aggregates announced to Internet: 126640
Total ASes present in the Internet Routing Table: 28472
Prefixes per ASN: 9.32
Origin-only ASes present in the Internet Routing Table: 24692
Origin ASes announcing only one prefix: 11982
Transit ASes present in the Internet Routing Table: 3780
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 28
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 637
Unregistered ASNs in the Routing Table: 239
Number of 32-bit ASNs allocated by the RIRs: 48
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 829
Number of addresses announced to Internet: 1894155961
Equivalent to 112 /8s, 230 /16s and 134 /24s
Percentage of available address space announced: 51.1
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.1
Total number of prefixes smaller than registry allocations: 129905
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 60865
Total APNIC prefixes after maximum aggregation: 22082
APNIC Deaggregation factor: 2.76
Prefixes being announced from the APNIC address blocks: 57979
Unique aggregates announced from the APNIC address blocks: 24875
APNIC Region origin ASes present in the Internet Routing Table: 3276
APNIC Prefixes per ASN: 17.70
APNIC Region origin ASes announcing only one prefix: 875
APNIC Region transit ASes present in the Internet Routing Table: 522
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 27
Number of APNIC addresses announced to Internet: 352034720
Equivalent to 20 /8s, 251 /16s and 159 /24s
Percentage of available APNIC address space announced: 74.9
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: 121423
Total ARIN prefixes after maximum aggregation: 66454
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 90444
Unique aggregates announced from the ARIN address blocks: 34829
ARIN Region origin ASes present in the Internet Routing Table: 12230
ARIN Prefixes per ASN: 7.40
ARIN Region origin ASes announcing only one prefix: 4741
ARIN Region transit ASes present in the Internet Routing Table: 1203
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 358178058
Equivalent to 21 /8s, 89 /16s and 93 /24s
Percentage of available ARIN address space announced: 73.6
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: 56602
Total RIPE prefixes after maximum aggregation: 34068
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 52017
Unique aggregates announced from the RIPE address blocks: 34173
RIPE Region origin ASes present in the Internet Routing Table: 11459
RIPE Prefixes per ASN: 4.54
RIPE Region origin ASes announcing only one prefix: 5987
RIPE Region transit ASes present in the Internet Routing Table: 1776
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 360904256
Equivalent to 21 /8s, 130 /16s and 246 /24s
Percentage of available RIPE address space announced: 82.7
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: 21982
Total LACNIC prefixes after maximum aggregation: 5103
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 20212
Unique aggregates announced from the LACNIC address blocks: 10358
LACNIC Region origin ASes present in the Internet Routing Table: 957
LACNIC Prefixes per ASN: 21.12
LACNIC Region origin ASes announcing only one prefix: 302
LACNIC Region transit ASes present in the Internet Routing Table: 159
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 52377992
Equivalent to 3 /8s, 31 /16s and 57 /24s
Percentage of available LACNIC address space announced: 52.0
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: 3904
Total AfriNIC prefixes after maximum aggregation: 1205
AfriNIC Deaggregation factor: 3.24
Prefixes being announced from the AfriNIC address blocks: 4177
Unique aggregates announced from the AfriNIC address blocks: 1871
AfriNIC Region origin ASes present in the Internet Routing Table: 245
AfriNIC Prefixes per ASN: 17.05
AfriNIC Region origin ASes announcing only one prefix: 77
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 12316416
Equivalent to 0 /8s, 187 /16s and 239 /24s
Percentage of available AfriNIC address space announced: 36.7
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 2065 3134 41 China Education and Research
4755 1641 387 88 Videsh Sanchar Nigam Ltd. Aut
9498 1179 550 62 BHARTI BT INTERNET LTD.
9583 1117 111 412 Sify Limited
17488 1100 76 74 Hathway IP Over Cable Interne
4134 836 12917 322 CHINANET-BACKBONE
23577 833 33 740 Korea Telecom (ATM-MPLS)
4766 815 6005 344 Korea Telecom (KIX)
18101 692 167 36 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
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 2208 3104 182 bellsouth.net, inc.
4323 1467 1043 377 Time Warner Telecom
3549 1449 540 208 Global Crossing
2386 1447 645 885 AT&T Data Communications Serv
7018 1365 9897 970 AT&T WorldNet Services
11492 1208 148 11 Cable One
1803 1200 7 947 SPRINT
1785 1068 510 104 AppliedTheory Corporation
18566 1044 296 10 Covad Communications
20115 1041 1063 565 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 415 1772 371 TDC Tele Danmark
8452 347 188 7 TEDATA
3301 338 1460 308 TeliaNet Sweden
3320 316 7045 265 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 298 666 27 Telewest Broadband
3215 285 2742 89 France Telecom Transpac
8551 283 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
9155 271 45 12 QualityNet AS number
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 1644 229 66 Telecom Argentina Stet-France
8151 1243 2464 226 UniNet S.A. de C.V.
11830 603 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 414 85 47 ENTEL CHILE S.A.
11172 410 118 69 Servicios Alestra S.A de C.V
10620 390 100 73 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
16735 367 92 11 Companhia de Telecomunicacoes
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 475 61 30 LINKdotNET AS number
3741 282 853 223 The Internet Solution
20858 219 34 3 EgyNet
2018 192 189 82 Tertiary Education Network
5713 163 558 99 Telkom SA Ltd
6713 145 136 12 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 102 13 8 Ci Telecom Autonomous system
33776 100 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 2208 3104 182 bellsouth.net, inc.
4538 2065 3134 41 China Education and Research
7303 1644 229 66 Telecom Argentina Stet-France
4755 1641 387 88 Videsh Sanchar Nigam Ltd. Aut
4323 1467 1043 377 Time Warner Telecom
3549 1449 540 208 Global Crossing
2386 1447 645 885 AT&T Data Communications Serv
7018 1365 9897 970 AT&T WorldNet Services
8151 1243 2464 226 UniNet S.A. de C.V.
11492 1208 148 11 Cable One
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 2065 2024 China Education and Research
7303 1644 1578 Telecom Argentina Stet-France
4755 1641 1553 Videsh Sanchar Nigam Ltd. Aut
3549 1449 1241 Global Crossing
11492 1208 1197 Cable One
9498 1179 1117 BHARTI BT INTERNET LTD.
4323 1467 1090 Time Warner Telecom
18566 1044 1034 Covad Communications
17488 1100 1026 Hathway IP Over Cable Interne
8151 1243 1017 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 12.0.252.0/23 701 UUNET Technologies,
22492 UNALLOCATED 12.2.46.0/24 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
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
172.30.254.0/24 4771 Netgate
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.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.75.192.0/18 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
63.140.213.0/24 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 /8:20 /9:9 /10:16 /11:43 /12:143
/13:284 /14:519 /15:1032 /16:10022 /17:4389 /18:7394
/19:15624 /20:18392 /21:17803 /22:22887 /23:23454 /24:139520
/25:876 /26:1109 /27:368 /28:712 /29:355 /30:211
/31:0 /32:225
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1356 2208 bellsouth.net, inc.
11492 1190 1208 Cable One
1803 1178 1200 SPRINT
7303 1148 1644 Telecom Argentina Stet-France
2386 1145 1447 AT&T Data Communications Serv
3549 1069 1449 Global Crossing
18566 1025 1044 Covad Communications
4755 990 1641 Videsh Sanchar Nigam Ltd. Aut
4538 979 2065 China Education and Research
9583 971 1117 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:113 12:2070 13:1 14:1 15:22
16:3 17:5 18:13 20:37 24:1071 25:1
32:199 33:3 38:441 40:93 41:642 43:1
44:2 47:12 52:3 55:4 56:3 57:46
58:518 59:505 60:445 61:1008 62:1137 63:1960
64:3569 65:2418 66:3769 67:1218 68:694 69:2268
70:682 71:126 72:1810 73:5 74:1006 75:217
76:315 77:730 78:703 79:193 80:926 81:867
82:582 83:400 84:576 85:1010 86:423 87:704
88:315 89:1272 90:12 91:1272 92:184 93:724
94:16 96:33 97:22 98:197 99:3 100:1
111:1 114:29 116:671 117:338 118:144 119:422
120:57 121:538 122:787 123:345 124:847 125:1147
128:327 129:207 130:130 131:405 132:67 133:9
134:177 135:33 136:218 137:91 138:151 139:85
140:498 141:99 142:403 143:330 144:352 145:51
146:375 147:154 148:507 149:195 150:130 151:193
152:144 153:143 154:10 155:273 156:174 157:277
158:168 159:239 160:257 161:114 162:233 163:185
164:530 165:458 166:331 167:329 168:619 169:131
170:448 171:29 172:11 189:213 190:2265 192:5803
193:4171 194:3243 195:2525 196:1073 198:3751 199:3281
200:5967 201:1608 202:8141 203:7910 204:3990 205:2133
206:2498 207:2821 208:3526 209:3541 210:2884 211:1178
212:1405 213:1644 214:164 215:49 216:4463 217:1205
218:397 219:505 220:1080 221:471 222:369
End of report
