Routing Table Report 04:00 +10GMT Tue 22 Sep, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 296687
Prefixes after maximum aggregation: 139775
Deaggregation factor: 2.12
Unique aggregates announced to Internet: 147838
Total ASes present in the Internet Routing Table: 32233
Prefixes per ASN: 9.20
Origin-only ASes present in the Internet Routing Table: 28012
Origin ASes announcing only one prefix: 13690
Transit ASes present in the Internet Routing Table: 4221
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: 437
Unregistered ASNs in the Routing Table: 120
Number of 32-bit ASNs allocated by the RIRs: 276
Prefixes from 32-bit ASNs in the Routing Table: 131
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 222
Number of addresses announced to Internet: 2107344768
Equivalent to 125 /8s, 155 /16s and 135 /24s
Percentage of available address space announced: 56.9
Percentage of allocated address space announced: 64.4
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: 142185
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71376
Total APNIC prefixes after maximum aggregation: 25021
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 67795
Unique aggregates announced from the APNIC address blocks: 30268
APNIC Region origin ASes present in the Internet Routing Table: 3794
APNIC Prefixes per ASN: 17.87
APNIC Region origin ASes announcing only one prefix: 1035
APNIC Region transit ASes present in the Internet Routing Table: 584
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 460345888
Equivalent to 27 /8s, 112 /16s and 82 /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: 125138
Total ARIN prefixes after maximum aggregation: 66600
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 99685
Unique aggregates announced from the ARIN address blocks: 38402
ARIN Region origin ASes present in the Internet Routing Table: 13248
ARIN Prefixes per ASN: 7.52
ARIN Region origin ASes announcing only one prefix: 5133
ARIN Region transit ASes present in the Internet Routing Table: 1299
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 705494656
Equivalent to 42 /8s, 12 /16s and 254 /24s
Percentage of available ARIN address space announced: 61.8
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, 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: 68492
Total RIPE prefixes after maximum aggregation: 40107
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 62196
Unique aggregates announced from the RIPE address blocks: 41533
RIPE Region origin ASes present in the Internet Routing Table: 13498
RIPE Prefixes per ASN: 4.61
RIPE Region origin ASes announcing only one prefix: 7049
RIPE Region transit ASes present in the Internet Routing Table: 2036
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 399560128
Equivalent to 23 /8s, 208 /16s and 205 /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: 25424
Total LACNIC prefixes after maximum aggregation: 6243
LACNIC Deaggregation factor: 4.07
Prefixes being announced from the LACNIC address blocks: 23750
Unique aggregates announced from the LACNIC address blocks: 13276
LACNIC Region origin ASes present in the Internet Routing Table: 1179
LACNIC Prefixes per ASN: 20.14
LACNIC Region origin ASes announcing only one prefix: 382
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: 66495232
Equivalent to 3 /8s, 246 /16s and 163 /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: 5884
Total AfriNIC prefixes after maximum aggregation: 1539
AfriNIC Deaggregation factor: 3.82
Prefixes being announced from the AfriNIC address blocks: 4259
Unique aggregates announced from the AfriNIC address blocks: 1495
AfriNIC Region origin ASes present in the Internet Routing Table: 319
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 91
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: 12430848
Equivalent to 0 /8s, 189 /16s and 174 /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 1507 136 104 Hathway IP Over Cable Interne
4755 1264 292 143 TATA Communications formerly
9583 1098 87 533 Sify Limited
4134 1008 18168 391 CHINANET-BACKBONE
18101 976 203 33 Reliance Infocom Ltd Internet
7545 843 198 96 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
4808 791 1518 181 CNCGROUP IP network: China169
24560 769 285 161 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 1929 1049 386 Time Warner Telecom
1785 1744 714 138 PaeTec Communications, Inc.
20115 1638 1477 671 Charter Communications
7018 1494 5875 1054 AT&T WorldNet Services
6478 1429 285 259 AT&T Worldnet Services
2386 1318 657 952 AT&T Data Communications Serv
3356 1227 10980 439 Level 3 Communications, LLC
11492 1122 208 12 Cable One
22773 1102 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 492 93 201 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 388 40 5 United Telecom of Georgia
9198 374 138 12 Kazakhtelecom Data Network Ad
8866 358 110 23 Bulgarian Telecommunication C
3320 355 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 1475 2899 245 UniNet S.A. de C.V.
10620 1012 227 93 TVCABLE BOGOTA
28573 706 622 62 NET Servicos de Comunicao S.A
7303 638 338 95 Telecom Argentina Stet-France
22047 542 302 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 936 96 61 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 1929 1049 386 Time Warner Telecom
4766 1762 6995 453 Korea Telecom (KIX)
1785 1744 714 138 PaeTec Communications, Inc.
20115 1638 1477 671 Charter Communications
17488 1507 136 104 Hathway IP Over Cable Interne
7018 1494 5875 1054 AT&T WorldNet Services
8151 1475 2899 245 UniNet S.A. de C.V.
6478 1429 285 259 AT&T Worldnet Services
2386 1318 657 952 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
1785 1744 1606 PaeTec Communications, Inc.
4323 1929 1543 Time Warner Telecom
17488 1507 1403 Hathway IP Over Cable Interne
4766 1762 1309 Korea Telecom (KIX)
8151 1475 1230 UniNet S.A. de C.V.
6478 1429 1170 AT&T Worldnet Services
4755 1264 1121 TATA Communications formerly
11492 1122 1110 Cable One
18566 1062 1052 Covad Communications
22773 1102 1036 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 /12:175
/13:355 /14:625 /15:1195 /16:10670 /17:4829 /18:8364
/19:17404 /20:20861 /21:20833 /22:27151 /23:26632 /24:154689
/25:927 /26:1066 /27:566 /28:166 /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.
4766 1435 1762 Korea Telecom (KIX)
17488 1261 1507 Hathway IP Over Cable Interne
1785 1210 1744 PaeTec Communications, Inc.
11492 1050 1122 Cable One
18566 1043 1062 Covad Communications
4323 968 1929 Time Warner Telecom
9583 950 1098 Sify Limited
10620 918 1012 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 4:13 8:226 12:2151 13:7 15:21
16:3 17:5 20:36 24:1142 32:52 34:2
38:603 40:97 41:1707 43:1 44:2 46:1
47:13 52:6 55:2 56:2 57:25 58:611
59:636 60:461 61:1073 62:1029 63:2016 64:3629
65:2400 66:3401 67:1789 68:979 69:2750 70:570
71:157 72:1655 73:2 74:1756 75:179 76:323
77:875 78:583 79:377 80:905 81:805 82:519
83:436 84:530 85:1028 86:381 87:679 88:390
89:1469 90:58 91:2548 92:403 93:1233 94:1176
95:1098 96:167 97:266 98:289 99:30 109:3
110:204 111:439 112:131 113:149 114:259 115:340
116:1118 117:559 118:323 119:777 120:124 121:770
122:1281 123:768 124:1054 125:1348 128:221 129:216
130:129 131:421 132:75 133:10 134:174 135:42
136:241 137:164 138:171 139:85 140:435 141:121
142:379 143:339 144:381 145:49 146:388 147:163
148:531 149:213 150:208 151:183 152:215 153:155
154:2 155:267 156:165 157:308 158:113 159:352
160:291 161:164 162:270 163:165 164:280 165:522
166:474 167:372 168:685 169:165 170:472 171:44
172:2 173:413 174:333 175:1 178:1 180:25
182:1 186:143 187:147 188:1005 189:587 190:3032
192:5762 193:4276 194:3286 195:2759 196:1142 198:3552
199:3352 200:5190 201:1302 202:7844 203:8264 204:3898
205:2195 206:2392 207:2720 208:3949 209:3389 210:2569
211:1126 212:1591 213:1635 214:179 215:33 216:4277
217:1313 218:411 219:451 220:1135 221:442 222:319
End of report