Routing Table Report 04:00 +10GMT Fri 25 Sep, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 298856
Prefixes after maximum aggregation: 139945
Deaggregation factor: 2.14
Unique aggregates announced to Internet: 148140
Total ASes present in the Internet Routing Table: 32257
Prefixes per ASN: 9.26
Origin-only ASes present in the Internet Routing Table: 28029
Origin ASes announcing only one prefix: 13685
Transit ASes present in the Internet Routing Table: 4228
Transit-only ASes present in the Internet Routing Table: 102
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (45127) 27
Prefixes from unregistered ASNs in the Routing Table: 455
Unregistered ASNs in the Routing Table: 123
Number of 32-bit ASNs allocated by the RIRs: 281
Prefixes from 32-bit ASNs in the Routing Table: 142
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 231
Number of addresses announced to Internet: 2108512768
Equivalent to 125 /8s, 173 /16s and 90 /24s
Percentage of available address space announced: 56.9
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 79.0
Total number of prefixes smaller than registry allocations: 143722
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71541
Total APNIC prefixes after maximum aggregation: 25079
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 67956
Unique aggregates announced from the APNIC address blocks: 30319
APNIC Region origin ASes present in the Internet Routing Table: 3804
APNIC Prefixes per ASN: 17.86
APNIC Region origin ASes announcing only one prefix: 1044
APNIC Region transit ASes present in the Internet Routing Table: 584
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 31
Number of APNIC addresses announced to Internet: 460434720
Equivalent to 27 /8s, 113 /16s and 173 /24s
Percentage of available APNIC address space announced: 78.4
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: 126830
Total ARIN prefixes after maximum aggregation: 66628
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 101250
Unique aggregates announced from the ARIN address blocks: 38438
ARIN Region origin ASes present in the Internet Routing Table: 13254
ARIN Prefixes per ASN: 7.64
ARIN Region origin ASes announcing only one prefix: 5133
ARIN Region transit ASes present in the Internet Routing Table: 1294
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 706163584
Equivalent to 42 /8s, 23 /16s and 51 /24s
Percentage of available ARIN address space announced: 61.9
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: 68611
Total RIPE prefixes after maximum aggregation: 40163
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 62308
Unique aggregates announced from the RIPE address blocks: 41651
RIPE Region origin ASes present in the Internet Routing Table: 13506
RIPE Prefixes per ASN: 4.61
RIPE Region origin ASes announcing only one prefix: 7036
RIPE Region transit ASes present in the Internet Routing Table: 2041
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 399774400
Equivalent to 23 /8s, 212 /16s and 18 /24s
Percentage of available RIPE address space announced: 74.5
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: 25607
Total LACNIC prefixes after maximum aggregation: 6246
LACNIC Deaggregation factor: 4.10
Prefixes being announced from the LACNIC address blocks: 23887
Unique aggregates announced from the LACNIC address blocks: 13290
LACNIC Region origin ASes present in the Internet Routing Table: 1179
LACNIC Prefixes per ASN: 20.26
LACNIC Region origin ASes announcing only one prefix: 379
LACNIC Region transit ASes present in the Internet Routing Table: 192
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 66519552
Equivalent to 3 /8s, 247 /16s and 2 /24s
Percentage of available LACNIC address space announced: 66.1
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: 5882
Total AfriNIC prefixes after maximum aggregation: 1559
AfriNIC Deaggregation factor: 3.77
Prefixes being announced from the AfriNIC address blocks: 4249
Unique aggregates announced from the AfriNIC address blocks: 1524
AfriNIC Region origin ASes present in the Internet Routing Table: 319
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 66
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12424448
Equivalent to 0 /8s, 189 /16s and 149 /24s
Percentage of available AfriNIC address space announced: 37.0
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 1760 6995 453 Korea Telecom (KIX)
17488 1511 137 104 Hathway IP Over Cable Interne
4755 1267 292 144 TATA Communications formerly
9583 1101 87 532 Sify Limited
4134 1009 18168 391 CHINANET-BACKBONE
18101 977 204 34 Reliance Infocom Ltd Internet
7545 869 198 97 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
4808 791 1518 181 CNCGROUP IP network: China169
24560 774 285 164 Bharti Airtel Ltd., Telemedia
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4151 3627 313 bellsouth.net, inc.
4323 3696 1045 384 Time Warner Telecom
1785 1749 714 138 PaeTec Communications, Inc.
7018 1503 5875 1056 AT&T WorldNet Services
20115 1480 1477 669 Charter Communications
6478 1427 285 255 AT&T Worldnet Services
2386 1325 657 954 AT&T Data Communications Serv
3356 1230 10964 441 Level 3 Communications, LLC
11492 1125 208 12 Cable One
22773 1107 2604 67 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
30890 493 93 202 Evolva Telecom
3292 446 1900 393 TDC Tele Danmark
702 424 1822 342 UUNET - Commercial IP service
12479 424 578 6 Uni2 Autonomous System
35805 415 40 5 United Telecom of Georgia
9198 375 138 12 Kazakhtelecom Data Network Ad
8866 358 110 23 Bulgarian Telecommunication C
3320 354 7068 304 Deutsche Telekom AG
3301 351 1412 308 TeliaNet Sweden
3215 348 3120 112 France Telecom Transpac
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1482 2899 246 UniNet S.A. de C.V.
10620 1015 227 95 TVCABLE BOGOTA
28573 709 622 62 NET Servicos de Comunicao S.A
7303 641 338 93 Telecom Argentina Stet-France
22047 540 302 14 VTR PUNTO NET S.A.
11830 475 310 61 Instituto Costarricense de El
11172 440 99 70 Servicios Alestra S.A de C.V
14117 435 29 11 Telefonica del Sur S.A.
7738 424 858 29 Telecomunicacoes da Bahia S.A
6471 423 96 31 ENTEL CHILE S.A.
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 954 188 7 TEDATA
24863 940 97 62 LINKdotNET AS number
3741 272 856 234 The Internet Solution
2018 197 187 116 Tertiary Education Network
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 123 46 9 RAYA Telecom - Egypt
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
5713 118 520 69 Telkom SA Ltd
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4151 3627 313 bellsouth.net, inc.
4323 3696 1045 384 Time Warner Telecom
4766 1760 6995 453 Korea Telecom (KIX)
1785 1749 714 138 PaeTec Communications, Inc.
17488 1511 137 104 Hathway IP Over Cable Interne
7018 1503 5875 1056 AT&T WorldNet Services
8151 1482 2899 246 UniNet S.A. de C.V.
20115 1480 1477 669 Charter Communications
6478 1427 285 255 AT&T Worldnet Services
2386 1325 657 954 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3696 3312 Time Warner Telecom
1785 1749 1611 PaeTec Communications, Inc.
17488 1511 1407 Hathway IP Over Cable Interne
4766 1760 1307 Korea Telecom (KIX)
8151 1482 1236 UniNet S.A. de C.V.
6478 1427 1172 AT&T Worldnet Services
4755 1267 1123 TATA Communications formerly
11492 1125 1113 Cable One
18566 1062 1052 Covad Communications
22773 1107 1040 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/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/current/data-badAS
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/current/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 /9:10 /10:24 /11:63 /12:176
/13:354 /14:625 /15:1199 /16:10671 /17:4832 /18:8368
/19:17462 /20:20859 /21:20900 /22:27089 /23:26764 /24:156649
/25:933 /26:1059 /27:566 /28:171 /29:40 /30:15
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2691 4151 bellsouth.net, inc.
4323 2358 3696 Time Warner Telecom
4766 1433 1760 Korea Telecom (KIX)
17488 1265 1511 Hathway IP Over Cable Interne
1785 1215 1749 PaeTec Communications, Inc.
11492 1053 1125 Cable One
18566 1043 1062 Covad Communications
9583 953 1101 Sify Limited
10620 921 1015 TVCABLE BOGOTA
8452 878 954 TEDATA
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:227 12:2148 13:7 15:22
16:3 17:5 20:36 24:1165 32:52 34:2
38:604 40:97 41:1697 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:25 58:613
59:647 60:461 61:1074 62:1029 63:2013 64:3737
65:2395 66:4087 67:1774 68:956 69:2765 70:570
71:156 72:1656 73:2 74:1946 75:179 76:320
77:881 78:585 79:393 80:907 81:804 82:517
83:432 84:531 85:1026 86:382 87:678 88:383
89:1483 90:58 91:2555 92:402 93:1247 94:1207
95:1097 96:168 97:266 98:299 99:30 109:40
110:205 111:439 112:138 113:151 114:259 115:349
116:1126 117:570 118:325 119:780 120:131 121:776
122:1289 123:777 124:1050 125:1348 128:222 129:216
130:129 131:425 132:75 133:10 134:174 135:42
136:241 137:164 138:176 139:85 140:440 141:121
142:382 143:339 144:348 145:49 146:390 147:168
148:550 149:213 150:209 151:183 152:215 153:155
154:2 155:270 156:165 157:308 158:113 159:354
160:291 161:164 162:271 163:172 164:280 165:522
166:474 167:374 168:788 169:166 170:474 171:44
172:2 173:417 174:336 175:1 178:1 180:27
182:1 186:143 187:154 188:1010 189:586 190:3056
192:5777 193:4258 194:3288 195:2761 196:1148 198:3563
199:3352 200:5215 201:1311 202:7850 203:8269 204:3933
205:2190 206:2440 207:2989 208:3950 209:3486 210:2558
211:1126 212:1607 213:1619 214:179 215:40 216:4391
217:1314 218:412 219:451 220:1127 221:441 222:318
End of report