Routing Table Report 00:00 GMT Tue 01 Sep, 2009
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: 301295
Prefixes after maximum aggregation: 140089
Deaggregation factor: 2.15
Unique aggregates announced to Internet: 146799
Total ASes present in the Internet Routing Table: 32107
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 27779
Origin ASes announcing only one prefix: 13586
Transit ASes present in the Internet Routing Table: 4328
Transit-only ASes present in the Internet Routing Table: 101
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 29
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 471
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 257
Prefixes from 32-bit ASNs in the Routing Table: 102
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 326
Number of addresses announced to Internet: 2101961418
Equivalent to 125 /8s, 73 /16s and 98 /24s
Percentage of available address space announced: 56.7
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.7
Total number of prefixes smaller than registry allocations: 145811
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71307
Total APNIC prefixes after maximum aggregation: 25184
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 70776
Unique aggregates announced from the APNIC address blocks: 31616
APNIC Region origin ASes present in the Internet Routing Table: 3759
APNIC Prefixes per ASN: 18.83
APNIC Region origin ASes announcing only one prefix: 1035
APNIC Region transit ASes present in the Internet Routing Table: 587
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 492955840
Equivalent to 29 /8s, 97 /16s and 232 /24s
Percentage of available APNIC address space announced: 83.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 43/8, 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, 175/8, 180/8, 182/8, 183/8, 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: 126567
Total ARIN prefixes after maximum aggregation: 66869
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 126851
Unique aggregates announced from the ARIN address blocks: 52502
ARIN Region origin ASes present in the Internet Routing Table: 13224
ARIN Prefixes per ASN: 9.59
ARIN Region origin ASes announcing only one prefix: 5098
ARIN Region transit ASes present in the Internet Routing Table: 1330
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 1013356693
Equivalent to 60 /8s, 102 /16s and 152 /24s
Percentage of available ARIN address space announced: 88.8
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
53248-55295
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8,
30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8,
44/8, 45/8, 47/8, 48/8, 52/8, 54/8, 55/8,
56/8, 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, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 69124
Total RIPE prefixes after maximum aggregation: 40089
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 69011
Unique aggregates announced from the RIPE address blocks: 45837
RIPE Region origin ASes present in the Internet Routing Table: 13446
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 6994
RIPE Region transit ASes present in the Internet Routing Table: 2086
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 500492648
Equivalent to 29 /8s, 212 /16s and 233 /24s
Percentage of available RIPE address space announced: 99.4
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, 47104-52223
RIPE Address Blocks 25/8, 51/8, 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, 109/8, 178/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 27639
Total LACNIC prefixes after maximum aggregation: 6159
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 27636
Unique aggregates announced from the LACNIC address blocks: 13947
LACNIC Region origin ASes present in the Internet Routing Table: 1173
LACNIC Prefixes per ASN: 23.56
LACNIC Region origin ASes announcing only one prefix: 373
LACNIC Region transit ASes present in the Internet Routing Table: 192
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 73490184
Equivalent to 4 /8s, 97 /16s and 95 /24s
Percentage of available LACNIC address space announced: 73.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247
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: 6299
Total AfriNIC prefixes after maximum aggregation: 1543
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6695
Unique aggregates announced from the AfriNIC address blocks: 2639
AfriNIC Region origin ASes present in the Internet Routing Table: 310
AfriNIC Prefixes per ASN: 21.60
AfriNIC Region origin ASes announcing only one prefix: 86
AfriNIC Region transit ASes present in the Internet Routing Table: 69
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 20200192
Equivalent to 1 /8s, 52 /16s and 59 /24s
Percentage of available AfriNIC address space announced: 60.2
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1556 6981 426 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
4755 1229 292 141 Videsh Sanchar Nigam Ltd. Aut
9583 1102 86 534 Sify Limited
18101 952 202 33 Reliance Infocom Ltd Internet
4134 945 18167 389 CHINANET-BACKBONE
23577 924 34 767 KRNIC
7545 827 198 103 TPG Internet Pty Ltd
9829 792 620 16 BSNL National Internet Backbo
24560 743 255 162 Bharti Airtel 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 4174 3608 310 bellsouth.net, inc.
20115 1981 1477 677 Charter Communications
4323 1917 1049 387 Time Warner Telecom
1785 1733 714 138 AppliedTheory Corporation
7018 1472 5898 1034 AT&T WorldNet Services
6478 1388 281 269 AT&T Worldnet Services
2386 1295 642 947 AT&T Data Communications Serv
3356 1229 10980 443 Level 3 Communications, LLC
11492 1116 208 12 Cable One
22773 1093 2604 66 Cox Communications, Inc.
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
702 626 1838 347 UUNET - Commercial IP service
30890 486 92 196 Evolva Telecom
12479 473 578 6 Uni2 Autonomous System
3292 467 1905 394 TDC Tele Danmark
35805 382 40 5 United Telecom AS
3301 376 1412 308 TeliaNet Sweden
9198 358 138 12 Kazakhtelecom Corporate Sales
8866 357 109 22 Bulgarian Telecommunication C
3320 353 7067 303 Deutsche Telekom AG
3215 344 3081 109 France Telecom Transpac
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 2251 335 94 Telecom Argentina Stet-France
8151 1474 2898 240 Uninet S.A. de C.V.
10620 1001 224 101 TVCABLE BOGOTA
28573 674 603 60 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 476 310 65 Instituto Costarricense de El
11172 443 99 70 Alestra
7738 440 862 30 Telecomunicacoes da Bahia S.A
14117 435 29 11 Telefonica del Sur S.A.
6471 421 96 31 ENTEL CHILE 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
8452 998 188 7 TEDATA
24863 924 92 52 LINKdotNET AS number
20858 320 34 6 EgyNet
3741 275 852 234 The Internet Solution
2018 202 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
33783 150 10 8 EEPAD TISP TELECOM & INTERNET
29571 143 14 6 Ci Telecom Autonomous system
24835 131 46 9 RAYA Telecom - Egypt
33776 123 7 11 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 4174 3608 310 bellsouth.net, inc.
7303 2251 335 94 Telecom Argentina Stet-France
20115 1981 1477 677 Charter Communications
4323 1917 1049 387 Time Warner Telecom
1785 1733 714 138 AppliedTheory Corporation
4766 1556 6981 426 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
8151 1474 2898 240 Uninet S.A. de C.V.
7018 1472 5898 1034 AT&T WorldNet Services
6478 1388 281 269 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 2251 2157 Telecom Argentina Stet-France
1785 1733 1595 AppliedTheory Corporation
4323 1917 1530 Time Warner Telecom
17488 1554 1451 Hathway IP Over Cable Interne
20115 1981 1304 Charter Communications
8151 1474 1234 Uninet S.A. de C.V.
4766 1556 1130 Korea Telecom (KIX)
6478 1388 1119 AT&T Worldnet Services
11492 1116 1104 Cable One
4755 1229 1088 Videsh Sanchar Nigam Ltd. Aut
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
10.29.248.71/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
24.225.128.0/17 36377 PATRIOT MEDIA AND COMMUNICATI
36.126.8.255/8 77 Johns Hopkins University Appl
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
43.245.96.0/20 7502 Internetwork Kyoto
43.245.112.0/20 7502 Internetwork Kyoto
43.245.192.0/20 7502 Internetwork Kyoto
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 /8:21 /9:10 /10:25 /11:62 /12:171
/13:354 /14:629 /15:1185 /16:10668 /17:4914 /18:8456
/19:17512 /20:20755 /21:21015 /22:27870 /23:27044 /24:156008
/25:809 /26:1015 /27:528 /28:451 /29:669 /30:816
/31:4 /32:304
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2706 4174 bellsouth.net, inc.
7303 1747 2251 Telecom Argentina Stet-France
17488 1300 1554 Hathway IP Over Cable Interne
4766 1243 1556 Korea Telecom (KIX)
1785 1203 1733 AppliedTheory Corporation
11492 1043 1116 Cable One
18566 1043 1062 Covad Communications
20115 996 1981 Charter Communications
4323 965 1917 Time Warner Telecom
9583 954 1102 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:14 8:217 12:2146 13:7 15:21 16:2
17:5 20:35 24:1163 32:151 34:2 38:597
40:97 41:1766 43:1 44:2 47:4 52:6
55:2 56:2 57:38 58:611 59:608 60:459
61:958 62:1162 63:2030 64:3642 65:2401 66:3488
67:1716 68:900 69:2767 70:559 71:173 72:1697
73:2 74:1749 75:182 76:319 77:861 78:583
79:380 80:934 81:846 82:635 83:428 84:643
85:1069 86:384 87:678 88:370 89:1466 90:51
91:2505 92:398 93:1121 94:1187 95:1090 96:166
97:268 98:277 99:30 110:182 111:393 112:127
113:151 114:241 115:313 116:1147 117:571 118:323
119:761 120:120 121:659 122:1244 123:756 124:1059
125:1356 128:224 129:220 130:129 131:417 132:73
133:9 134:174 135:42 136:225 137:161 138:170
139:96 140:444 141:124 142:386 143:338 144:385
145:49 146:387 147:157 148:461 149:297 150:207
151:189 152:209 153:160 154:2 155:278 156:167
157:304 158:110 159:339 160:273 161:164 162:268
163:164 164:276 165:526 166:472 167:364 168:703
169:166 170:510 171:41 172:2 173:396 174:325
175:1 178:1 180:13 182:1 186:137 187:188
188:606 189:691 190:3400 191:1 192:5821 193:4387
194:3403 195:2878 196:1125 198:3555 199:3364 200:5459
201:1436 202:7768 203:8291 204:3901 205:2298 206:2407
207:2748 208:3961 209:3416 210:2537 211:1136 212:1653
213:1717 214:140 215:29 216:4350 217:1369 218:413
219:447 220:1112 221:463 222:328
End of report