Routing Table Report 04:00 +10GMT Sun 27 Sep, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 298808
Prefixes after maximum aggregation: 140003
Deaggregation factor: 2.13
Unique aggregates announced to Internet: 148185
Total ASes present in the Internet Routing Table: 32252
Prefixes per ASN: 9.26
Origin-only ASes present in the Internet Routing Table: 28027
Origin ASes announcing only one prefix: 13677
Transit ASes present in the Internet Routing Table: 4225
Transit-only ASes present in the Internet Routing Table: 103
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: 283
Prefixes from 32-bit ASNs in the Routing Table: 143
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2108699904
Equivalent to 125 /8s, 176 /16s and 53 /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: 143664
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71429
Total APNIC prefixes after maximum aggregation: 25105
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 67849
Unique aggregates announced from the APNIC address blocks: 30299
APNIC Region origin ASes present in the Internet Routing Table: 3793
APNIC Prefixes per ASN: 17.89
APNIC Region origin ASes announcing only one prefix: 1038
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: 460623904
Equivalent to 27 /8s, 116 /16s and 144 /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: 126937
Total ARIN prefixes after maximum aggregation: 66673
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 101385
Unique aggregates announced from the ARIN address blocks: 38453
ARIN Region origin ASes present in the Internet Routing Table: 13247
ARIN Prefixes per ASN: 7.65
ARIN Region origin ASes announcing only one prefix: 5128
ARIN Region transit ASes present in the Internet Routing Table: 1293
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 706207360
Equivalent to 42 /8s, 23 /16s and 222 /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: 68624
Total RIPE prefixes after maximum aggregation: 40162
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 62358
Unique aggregates announced from the RIPE address blocks: 41708
RIPE Region origin ASes present in the Internet Routing Table: 13516
RIPE Prefixes per ASN: 4.61
RIPE Region origin ASes announcing only one prefix: 7040
RIPE Region transit ASes present in the Internet Routing Table: 2040
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 399915712
Equivalent to 23 /8s, 214 /16s and 58 /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: 25596
Total LACNIC prefixes after maximum aggregation: 6241
LACNIC Deaggregation factor: 4.10
Prefixes being announced from the LACNIC address blocks: 23881
Unique aggregates announced from the LACNIC address blocks: 13343
LACNIC Region origin ASes present in the Internet Routing Table: 1182
LACNIC Prefixes per ASN: 20.20
LACNIC Region origin ASes announcing only one prefix: 378
LACNIC Region transit ASes present in the Internet Routing Table: 191
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 66489856
Equivalent to 3 /8s, 246 /16s and 142 /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: 5837
Total AfriNIC prefixes after maximum aggregation: 1551
AfriNIC Deaggregation factor: 3.76
Prefixes being announced from the AfriNIC address blocks: 4230
Unique aggregates announced from the AfriNIC address blocks: 1537
AfriNIC Region origin ASes present in the Internet Routing Table: 319
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 67
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12468480
Equivalent to 0 /8s, 190 /16s and 65 /24s
Percentage of available AfriNIC address space announced: 37.2
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 1477 135 139 Hathway IP Over Cable Interne
4755 1261 292 144 TATA Communications formerly
9583 1100 87 530 Sify Limited
4134 1009 18168 391 CHINANET-BACKBONE
18101 976 204 33 Reliance Infocom Ltd Internet
7545 872 198 100 TPG Internet Pty Ltd
9829 813 626 19 BSNL National Internet Backbo
4808 788 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 4164 3627 312 bellsouth.net, inc.
4323 3701 1045 384 Time Warner Telecom
1785 1751 714 138 PaeTec Communications, Inc.
7018 1510 5876 1057 AT&T WorldNet Services
20115 1479 1477 668 Charter Communications
6478 1412 279 301 AT&T Worldnet Services
2386 1320 657 950 AT&T Data Communications Serv
3356 1233 10964 440 Level 3 Communications, LLC
11492 1128 208 12 Cable One
22773 1109 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
702 425 1822 343 UUNET - Commercial IP service
12479 424 578 6 Uni2 Autonomous System
35805 415 40 5 United Telecom of Georgia
9198 376 138 12 Kazakhtelecom Data Network Ad
8866 358 110 23 Bulgarian Telecommunication C
3320 352 7067 303 Deutsche Telekom AG
3301 351 1412 308 TeliaNet Sweden
3215 348 3128 110 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 2883 243 UniNet S.A. de C.V.
10620 1015 227 95 TVCABLE BOGOTA
28573 710 622 62 NET Servicos de Comunicao S.A
7303 642 339 93 Telecom Argentina Stet-France
22047 544 302 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 948 188 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
5536 122 8 13 Internet Egypt Network
5713 118 520 69 Telkom SA Ltd
33776 111 7 10 Starcomms Nigeria Limited
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 4164 3627 312 bellsouth.net, inc.
4323 3701 1045 384 Time Warner Telecom
4766 1762 6995 453 Korea Telecom (KIX)
1785 1751 714 138 PaeTec Communications, Inc.
7018 1510 5876 1057 AT&T WorldNet Services
20115 1479 1477 668 Charter Communications
17488 1477 135 139 Hathway IP Over Cable Interne
8151 1475 2883 243 UniNet S.A. de C.V.
6478 1412 279 301 AT&T Worldnet Services
2386 1320 657 950 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 3701 3317 Time Warner Telecom
1785 1751 1613 PaeTec Communications, Inc.
17488 1477 1338 Hathway IP Over Cable Interne
4766 1762 1309 Korea Telecom (KIX)
8151 1475 1232 UniNet S.A. de C.V.
4755 1261 1117 TATA Communications formerly
11492 1128 1116 Cable One
6478 1412 1111 AT&T Worldnet Services
18566 1062 1052 Covad Communications
22773 1109 1042 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 /16:10674 /17:4833 /18:8366
/19:17456 /20:20853 /21:20881 /22:27123 /23:26764 /24:156594
/25:931 /26:1065 /27:566 /28:169 /29:40 /30:15
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2696 4164 bellsouth.net, inc.
4323 2360 3701 Time Warner Telecom
4766 1435 1762 Korea Telecom (KIX)
17488 1238 1477 Hathway IP Over Cable Interne
1785 1217 1751 PaeTec Communications, Inc.
11492 1054 1128 Cable One
18566 1043 1062 Covad Communications
9583 952 1100 Sify Limited
10620 921 1015 TVCABLE BOGOTA
8452 872 948 TEDATA
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:226 12:2145 13:7 15:22
16:3 17:5 20:36 24:1168 32:52 34:2
38:602 40:97 41:1665 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:25 58:613
59:648 60:454 61:1078 62:1029 63:2014 64:3739
65:2397 66:4084 67:1776 68:964 69:2777 70:571
71:154 72:1671 73:2 74:1945 75:179 76:321
77:882 78:584 79:394 80:907 81:803 82:505
83:432 84:530 85:1028 86:382 87:683 88:388
89:1480 90:61 91:2564 92:405 93:1247 94:1207
95:1100 96:168 97:267 98:294 99:30 109:42
110:208 111:440 112:138 113:150 114:261 115:351
116:1110 117:571 118:326 119:782 120:132 121:775
122:1289 123:776 124:1041 125:1348 128:222 129:216
130:129 131:424 132:74 133:10 134:173 135:42
136:240 137:164 138:175 139:85 140:442 141:121
142:383 143:328 144:343 145:49 146:391 147:170
148:548 149:211 150:210 151:183 152:215 153:155
154:1 155:270 156:165 157:307 158:113 159:353
160:290 161:163 162:271 163:171 164:280 165:521
166:473 167:375 168:790 169:167 170:471 171:43
172:2 173:418 174:375 175:1 178:1 180:34
182:1 186:142 187:157 188:984 189:581 190:3066
192:5772 193:4261 194:3288 195:2755 196:1146 198:3556
199:3343 200:5221 201:1323 202:7832 203:8222 204:3935
205:2213 206:2439 207:2982 208:3955 209:3487 210:2549
211:1119 212:1611 213:1629 214:176 215:39 216:4404
217:1312 218:412 219:450 220:1126 221:441 222:310
End of report