Routing Table Report 04:00 +10GMT Wed 23 Sep, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 298453
Prefixes after maximum aggregation: 139780
Deaggregation factor: 2.14
Unique aggregates announced to Internet: 147888
Total ASes present in the Internet Routing Table: 32217
Prefixes per ASN: 9.26
Origin-only ASes present in the Internet Routing Table: 28003
Origin ASes announcing only one prefix: 13682
Transit ASes present in the Internet Routing Table: 4214
Transit-only ASes present in the Internet Routing Table: 101
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 435
Unregistered ASNs in the Routing Table: 119
Number of 32-bit ASNs allocated by the RIRs: 277
Prefixes from 32-bit ASNs in the Routing Table: 130
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 220
Number of addresses announced to Internet: 2107967360
Equivalent to 125 /8s, 165 /16s and 7 /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: 78.9
Total number of prefixes smaller than registry allocations: 143543
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71484
Total APNIC prefixes after maximum aggregation: 25049
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 67902
Unique aggregates announced from the APNIC address blocks: 30294
APNIC Region origin ASes present in the Internet Routing Table: 3800
APNIC Prefixes per ASN: 17.87
APNIC Region origin ASes announcing only one prefix: 1041
APNIC Region transit ASes present in the Internet Routing Table: 586
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 460417568
Equivalent to 27 /8s, 113 /16s and 106 /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: 126951
Total ARIN prefixes after maximum aggregation: 66593
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 101369
Unique aggregates announced from the ARIN address blocks: 38395
ARIN Region origin ASes present in the Internet Routing Table: 13243
ARIN Prefixes per ASN: 7.65
ARIN Region origin ASes announcing only one prefix: 5126
ARIN Region transit ASes present in the Internet Routing Table: 1296
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 705971072
Equivalent to 42 /8s, 20 /16s and 67 /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: 68312
Total RIPE prefixes after maximum aggregation: 40057
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 62016
Unique aggregates announced from the RIPE address blocks: 41501
RIPE Region origin ASes present in the Internet Routing Table: 13478
RIPE Prefixes per ASN: 4.60
RIPE Region origin ASes announcing only one prefix: 7040
RIPE Region transit ASes present in the Internet Routing Table: 2027
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 399682368
Equivalent to 23 /8s, 210 /16s and 171 /24s
Percentage of available RIPE address space announced: 74.4
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, 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: 25456
Total LACNIC prefixes after maximum aggregation: 6267
LACNIC Deaggregation factor: 4.06
Prefixes being announced from the LACNIC address blocks: 23756
Unique aggregates announced from the LACNIC address blocks: 13284
LACNIC Region origin ASes present in the Internet Routing Table: 1183
LACNIC Prefixes per ASN: 20.08
LACNIC Region origin ASes announcing only one prefix: 381
LACNIC Region transit ASes present in the Internet Routing Table: 189
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 66504704
Equivalent to 3 /8s, 246 /16s and 200 /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: 5879
Total AfriNIC prefixes after maximum aggregation: 1551
AfriNIC Deaggregation factor: 3.79
Prefixes being announced from the AfriNIC address blocks: 4251
Unique aggregates announced from the AfriNIC address blocks: 1519
AfriNIC Region origin ASes present in the Internet Routing Table: 319
AfriNIC Prefixes per ASN: 13.33
AfriNIC Region origin ASes announcing only one prefix: 94
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: 12421376
Equivalent to 0 /8s, 189 /16s and 137 /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 1762 6995 453 Korea Telecom (KIX)
17488 1511 136 104 Hathway IP Over Cable Interne
4755 1264 292 143 TATA Communications formerly
9583 1098 87 532 Sify Limited
4134 1009 18168 391 CHINANET-BACKBONE
18101 976 203 33 Reliance Infocom Ltd Internet
7545 841 198 99 TPG Internet Pty Ltd
9829 810 625 18 BSNL National Internet Backbo
4808 791 1518 181 CNCGROUP IP network: China169
24560 770 285 162 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 4170 3627 313 bellsouth.net, inc.
4323 3696 1049 386 Time Warner Telecom
1785 1747 714 138 PaeTec Communications, Inc.
20115 1640 1478 669 Charter Communications
7018 1497 5875 1058 AT&T WorldNet Services
6478 1431 285 257 AT&T Worldnet Services
2386 1321 657 954 AT&T Data Communications Serv
3356 1229 10964 441 Level 3 Communications, LLC
11492 1123 208 12 Cable One
22773 1104 2604 66 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
12479 426 578 6 Uni2 Autonomous System
702 424 1822 342 UUNET - Commercial IP service
35805 391 40 5 United Telecom of Georgia
9198 374 138 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 347 3121 111 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 1478 2899 245 UniNet S.A. de C.V.
10620 1014 227 95 TVCABLE BOGOTA
28573 696 617 71 NET Servicos de Comunicao S.A
7303 640 338 94 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
7738 424 858 29 Telecomunicacoes da Bahia S.A
6471 423 96 31 ENTEL CHILE S.A.
14117 418 29 11 Telefonica del Sur 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 978 188 7 TEDATA
24863 939 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 4170 3627 313 bellsouth.net, inc.
4323 3696 1049 386 Time Warner Telecom
4766 1762 6995 453 Korea Telecom (KIX)
1785 1747 714 138 PaeTec Communications, Inc.
20115 1640 1478 669 Charter Communications
17488 1511 136 104 Hathway IP Over Cable Interne
7018 1497 5875 1058 AT&T WorldNet Services
8151 1478 2899 245 UniNet S.A. de C.V.
6478 1431 285 257 AT&T Worldnet Services
2386 1321 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 3310 Time Warner Telecom
1785 1747 1609 PaeTec Communications, Inc.
17488 1511 1407 Hathway IP Over Cable Interne
4766 1762 1309 Korea Telecom (KIX)
8151 1478 1233 UniNet S.A. de C.V.
6478 1431 1174 AT&T Worldnet Services
4755 1264 1121 TATA Communications formerly
11492 1123 1111 Cable One
18566 1062 1052 Covad Communications
22773 1104 1038 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 /15:1198 /16:10668 /17:4831 /18:8367
/19:17447 /20:20848 /21:20832 /22:27191 /23:26696 /24:156311
/25:932 /26:1060 /27:569 /28:169 /29:40 /30:15
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2701 4170 bellsouth.net, inc.
4323 2357 3696 Time Warner Telecom
4766 1435 1762 Korea Telecom (KIX)
17488 1265 1511 Hathway IP Over Cable Interne
1785 1213 1747 PaeTec Communications, Inc.
11492 1051 1123 Cable One
18566 1043 1062 Covad Communications
9583 950 1098 Sify Limited
10620 920 1014 TVCABLE BOGOTA
8452 902 978 TEDATA
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:230 12:2145 13:7 15:21
16:3 17:5 20:36 24:1156 32:52 34:2
38:603 40:97 41:1705 43:1 44:2 46:1
47:13 52:6 55:2 56:2 57:25 58:611
59:635 60:462 61:1074 62:1030 63:2009 64:3748
65:2396 66:4093 67:1788 68:968 69:2754 70:568
71:157 72:1654 73:2 74:1948 75:179 76:322
77:860 78:573 79:379 80:891 81:801 82:517
83:427 84:533 85:1022 86:381 87:682 88:385
89:1463 90:58 91:2533 92:403 93:1230 94:1143
95:1095 96:167 97:266 98:296 99:30 109:6
110:205 111:437 112:137 113:154 114:259 115:340
116:1123 117:563 118:325 119:776 120:127 121:772
122:1285 123:768 124:1053 125:1348 128:221 129:216
130:129 131:423 132:75 133:10 134:174 135:42
136:241 137:164 138:176 139:85 140:438 141:121
142:382 143:339 144:385 145:49 146:390 147:166
148:531 149:213 150:209 151:183 152:215 153:155
154:2 155:264 156:165 157:306 158:113 159:354
160:291 161:164 162:271 163:165 164:280 165:522
166:474 167:373 168:793 169:165 170:473 171:44
172:2 173:415 174:335 175:1 178:1 180:26
182:1 186:143 187:154 188:1008 189:586 190:3015
192:5778 193:4269 194:3285 195:2755 196:1140 198:3551
199:3350 200:5178 201:1310 202:7848 203:8275 204:3922
205:2198 206:2438 207:2991 208:3950 209:3476 210:2572
211:1128 212:1588 213:1635 214:186 215:40 216:4397
217:1314 218:413 219:450 220:1133 221:442 222:321
End of report