Routing Table Report 00:00 GMT Tue 29 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: 306522
Prefixes after maximum aggregation: 140923
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 130409
Total ASes present in the Internet Routing Table: 32328
Prefixes per ASN: 9.48
Origin-only ASes present in the Internet Routing Table: 27981
Origin ASes announcing only one prefix: 13675
Transit ASes present in the Internet Routing Table: 4347
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 31
Max AS path prepend of ASN (45127) 27
Prefixes from unregistered ASNs in the Routing Table: 567
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 288
Prefixes from 32-bit ASNs in the Routing Table: 211
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 208
Number of addresses announced to Internet: 1634733594
Equivalent to 97 /8s, 112 /16s and 14 /24s
Percentage of available address space announced: 44.1
Percentage of allocated address space announced: 50.0
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 79.1
Total number of prefixes smaller than registry allocations: 148931
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 72819
Total APNIC prefixes after maximum aggregation: 25374
APNIC Deaggregation factor: 2.87
Prefixes being announced from the APNIC address blocks: 69082
Unique aggregates announced from the APNIC address blocks: 20601
APNIC Region origin ASes present in the Internet Routing Table: 3800
APNIC Prefixes per ASN: 18.18
APNIC Region origin ASes announcing only one prefix: 1052
APNIC Region transit ASes present in the Internet Routing Table: 592
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 31
Number of APNIC addresses announced to Internet: 213954048
Equivalent to 12 /8s, 192 /16s and 174 /24s
Percentage of available APNIC address space announced: 36.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 128491
Total ARIN prefixes after maximum aggregation: 67052
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 102698
Unique aggregates announced from the ARIN address blocks: 37472
ARIN Region origin ASes present in the Internet Routing Table: 13292
ARIN Prefixes per ASN: 7.73
ARIN Region origin ASes announcing only one prefix: 5145
ARIN Region transit ASes present in the Internet Routing Table: 1327
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 645921157
Equivalent to 38 /8s, 127 /16s and 249 /24s
Percentage of available ARIN address space announced: 56.6
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
53248-55295, 393216-394239
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: 70510
Total RIPE prefixes after maximum aggregation: 40376
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 64163
Unique aggregates announced from the RIPE address blocks: 37149
RIPE Region origin ASes present in the Internet Routing Table: 13523
RIPE Prefixes per ASN: 4.74
RIPE Region origin ASes announcing only one prefix: 7012
RIPE Region transit ASes present in the Internet Routing Table: 2096
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 360040240
Equivalent to 21 /8s, 117 /16s and 199 /24s
Percentage of available RIPE address space announced: 67.1
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 46/8, 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: 28357
Total LACNIC prefixes after maximum aggregation: 6290
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 26644
Unique aggregates announced from the LACNIC address blocks: 13343
LACNIC Region origin ASes present in the Internet Routing Table: 1186
LACNIC Prefixes per ASN: 22.47
LACNIC Region origin ASes announcing only one prefix: 371
LACNIC Region transit ASes present in the Internet Routing Table: 194
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 31
Number of LACNIC addresses announced to Internet: 66606608
Equivalent to 3 /8s, 248 /16s and 86 /24s
Percentage of available LACNIC address space announced: 66.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 5873
Total AfriNIC prefixes after maximum aggregation: 1556
AfriNIC Deaggregation factor: 3.77
Prefixes being announced from the AfriNIC address blocks: 4269
Unique aggregates announced from the AfriNIC address blocks: 1525
AfriNIC Region origin ASes present in the Internet Routing Table: 322
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 95
AfriNIC Region transit ASes present in the Internet Routing Table: 68
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 12534784
Equivalent to 0 /8s, 191 /16s and 68 /24s
Percentage of available AfriNIC address space announced: 37.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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 1594 6995 450 Korea Telecom (KIX)
17488 1478 135 139 Hathway IP Over Cable Interne
4755 1253 292 143 Videsh Sanchar Nigam Ltd. Aut
9583 1111 87 532 Sify Limited
18101 976 204 33 Reliance Infocom Ltd Internet
4134 951 18168 391 CHINANET-BACKBONE
23577 876 33 733 KRNIC
7545 871 199 101 TPG Internet Pty Ltd
9829 813 626 19 BSNL National Internet Backbo
24560 774 285 164 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 4160 3625 310 bellsouth.net, inc.
4323 3694 1045 381 Time Warner Telecom
20115 1984 1479 652 Charter Communications
1785 1753 714 138 AppliedTheory Corporation
7018 1493 9958 1036 AT&T WorldNet Services
6478 1412 279 301 AT&T Worldnet Services
2386 1321 643 957 AT&T Data Communications Serv
3356 1238 10963 436 Level 3 Communications, LLC
11492 1130 208 12 Cable One
22773 1110 2604 67 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
9116 506 296 30 Goldenlines main autonomous s
30890 494 93 203 Evolva Telecom
3292 446 1900 392 TDC Tele Danmark
12479 426 578 6 Uni2 Autonomous System
702 424 1822 342 UUNET - Commercial IP service
35805 415 40 5 United Telecom AS
3301 380 1412 308 TeliaNet Sweden
9198 371 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 351 7067 302 Deutsche Telekom AG
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 2341 341 95 Telecom Argentina Stet-France
8151 1474 2899 241 Uninet S.A. de C.V.
10620 1015 227 95 TVCABLE BOGOTA
28573 711 622 66 Types of queries are: POCs, o
22047 545 302 14 Types of queries are: POCs, o
11830 474 309 76 Instituto Costarricense de El
7738 446 858 29 Telecomunicacoes da Bahia S.A
11172 440 99 70 Alestra
14117 435 29 11 Telefonica del Sur S.A.
16735 428 124 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
8452 971 188 7 TEDATA
24863 938 96 61 LINKdotNET AS number
3741 272 856 234 The Internet Solution
2018 197 187 118 TENET-1
6713 173 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 123 46 9 RAYA Telecom - Egypt
5536 122 8 13 Internet Egypt Network
33776 120 7 11 Starcomms Nigeria Limited
5713 118 520 69 Telkom SA Ltd
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 4160 3625 310 bellsouth.net, inc.
4323 3694 1045 381 Time Warner Telecom
7303 2341 341 95 Telecom Argentina Stet-France
20115 1984 1479 652 Charter Communications
1785 1753 714 138 AppliedTheory Corporation
4766 1594 6995 450 Korea Telecom (KIX)
7018 1493 9958 1036 AT&T WorldNet Services
17488 1478 135 139 Hathway IP Over Cable Interne
8151 1474 2899 241 Uninet S.A. de C.V.
6478 1412 279 301 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
4323 3694 3313 Time Warner Telecom
7303 2341 2246 Telecom Argentina Stet-France
1785 1753 1615 AppliedTheory Corporation
17488 1478 1339 Hathway IP Over Cable Interne
20115 1984 1332 Charter Communications
8151 1474 1233 Uninet S.A. de C.V.
4766 1594 1144 Korea Telecom (KIX)
11492 1130 1118 Cable One
6478 1412 1111 AT&T Worldnet Services
4755 1253 1110 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
2.0.0.0/16 12654 RIPE NCC RIS Project
2.1.0.0/21 12654 RIPE NCC RIS Project
2.1.24.0/24 12654 RIPE NCC RIS Project
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
46.0.0.0/16 12654 RIPE NCC RIS Project
46.1.0.0/21 12654 RIPE NCC RIS Project
46.1.24.0/24 12654 RIPE NCC RIS Project
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 /8:20 /9:10 /10:24 /11:63 /12:179
/13:357 /14:630 /15:1208 /16:10705 /17:4935 /18:8505
/19:17722 /20:21239 /21:21347 /22:28364 /23:27431 /24:159023
/25:806 /26:1024 /27:501 /28:486 /29:779 /30:846
/31:3 /32:315
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2695 4160 bellsouth.net, inc.
4323 2359 3694 Time Warner Telecom
7303 1819 2341 Telecom Argentina Stet-France
4766 1268 1594 Korea Telecom (KIX)
17488 1239 1478 Hathway IP Over Cable Interne
1785 1219 1753 AppliedTheory Corporation
11492 1056 1130 Cable One
18566 1043 1062 Covad Communications
20115 994 1984 Charter Communications
9583 963 1111 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:228 12:2159 13:7 15:22
16:3 17:5 20:36 24:1203 32:151 34:2
38:604 40:97 41:1694 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:38 58:613
59:649 60:454 61:1079 62:1051 63:2017 64:3752
65:2393 66:4140 67:1779 68:981 69:2766 70:575
71:165 72:1675 73:2 74:1954 75:182 76:321
77:879 78:599 79:397 80:924 81:804 82:541
83:439 84:525 85:1035 86:396 87:691 88:393
89:1521 90:61 91:2589 92:404 93:1236 94:1206
95:1107 96:170 97:268 98:297 99:30 109:43
110:208 111:439 112:138 113:151 114:260 115:352
116:1117 117:549 118:327 119:782 120:135 121:786
122:1286 123:775 124:1050 125:1350 128:223 129:217
130:174 131:425 132:72 133:10 134:173 135:42
136:240 137:164 138:177 139:95 140:442 141:121
142:380 143:332 144:349 145:49 146:390 147:171
148:548 149:212 150:148 151:181 152:216 153:155
154:2 155:271 156:165 157:308 158:113 159:354
160:291 161:165 162:270 163:166 164:280 165:519
166:475 167:375 168:791 169:167 170:499 171:43
172:2 173:418 174:360 175:1 178:1 180:36
182:1 186:152 187:194 188:1047 189:697 190:3508
192:5809 193:4300 194:3339 195:2860 196:1141 198:3557
199:3354 200:5565 201:1479 202:8021 203:8272 204:3932
205:2214 206:2457 207:2975 208:3962 209:3498 210:2564
211:1151 212:1670 213:1665 214:184 215:40 216:4429
217:1319 218:418 219:480 220:1129 221:442 222:318
End of report