Routing Table Report 04:00 +10GMT Tue 29 Sep, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 298829
Prefixes after maximum aggregation: 140074
Deaggregation factor: 2.13
Unique aggregates announced to Internet: 148222
Total ASes present in the Internet Routing Table: 32272
Prefixes per ASN: 9.26
Origin-only ASes present in the Internet Routing Table: 28052
Origin ASes announcing only one prefix: 13694
Transit ASes present in the Internet Routing Table: 4220
Transit-only ASes present in the Internet Routing Table: 104
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: 517
Unregistered ASNs in the Routing Table: 121
Number of 32-bit ASNs allocated by the RIRs: 288
Prefixes from 32-bit ASNs in the Routing Table: 206
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 213
Number of addresses announced to Internet: 2109304832
Equivalent to 125 /8s, 185 /16s and 112 /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: 79.1
Total number of prefixes smaller than registry allocations: 143642
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71512
Total APNIC prefixes after maximum aggregation: 25126
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 67929
Unique aggregates announced from the APNIC address blocks: 30312
APNIC Region origin ASes present in the Internet Routing Table: 3802
APNIC Prefixes per ASN: 17.87
APNIC Region origin ASes announcing only one prefix: 1043
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: 461039392
Equivalent to 27 /8s, 122 /16s and 231 /24s
Percentage of available APNIC address space announced: 78.5
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: 126872
Total ARIN prefixes after maximum aggregation: 66704
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 101292
Unique aggregates announced from the ARIN address blocks: 38429
ARIN Region origin ASes present in the Internet Routing Table: 13252
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: 1290
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 706210688
Equivalent to 42 /8s, 23 /16s and 235 /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: 68592
Total RIPE prefixes after maximum aggregation: 40166
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 62314
Unique aggregates announced from the RIPE address blocks: 41704
RIPE Region origin ASes present in the Internet Routing Table: 13519
RIPE Prefixes per ASN: 4.61
RIPE Region origin ASes announcing only one prefix: 7047
RIPE Region transit ASes present in the Internet Routing Table: 2033
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 399791040
Equivalent to 23 /8s, 212 /16s and 83 /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: 25530
Total LACNIC prefixes after maximum aggregation: 6256
LACNIC Deaggregation factor: 4.08
Prefixes being announced from the LACNIC address blocks: 23892
Unique aggregates announced from the LACNIC address blocks: 13391
LACNIC Region origin ASes present in the Internet Routing Table: 1184
LACNIC Prefixes per ASN: 20.18
LACNIC Region origin ASes announcing only one prefix: 377
LACNIC Region transit ASes present in the Internet Routing Table: 193
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 66549248
Equivalent to 3 /8s, 247 /16s and 118 /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: 5876
Total AfriNIC prefixes after maximum aggregation: 1551
AfriNIC Deaggregation factor: 3.79
Prefixes being announced from the AfriNIC address blocks: 4269
Unique aggregates announced from the AfriNIC address blocks: 1527
AfriNIC Region origin ASes present in the Internet Routing Table: 320
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 94
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: 12502784
Equivalent to 0 /8s, 190 /16s and 199 /24s
Percentage of available AfriNIC address space announced: 37.3
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 1766 6995 456 Korea Telecom (KIX)
17488 1477 135 139 Hathway IP Over Cable Interne
4755 1255 292 144 TATA Communications formerly
9583 1101 87 530 Sify Limited
4134 1009 18168 391 CHINANET-BACKBONE
18101 976 204 33 Reliance Infocom Ltd Internet
7545 870 198 100 TPG Internet Pty Ltd
9829 813 626 19 BSNL National Internet Backbo
24560 774 285 164 Bharti Airtel Ltd., Telemedia
4808 762 1518 181 CNCGROUP IP network: China169
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 4162 3627 314 bellsouth.net, inc.
4323 3701 1045 382 Time Warner Telecom
1785 1751 714 138 PaeTec Communications, Inc.
7018 1514 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 1234 10964 440 Level 3 Communications, LLC
11492 1128 208 12 Cable One
22773 1110 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
12479 428 578 6 Uni2 Autonomous System
702 425 1822 343 UUNET - Commercial IP service
35805 415 40 5 United Telecom of Georgia
9198 376 138 12 Kazakhtelecom Data Network Ad
8866 358 110 23 Bulgarian Telecommunication C
3301 351 1412 308 TeliaNet Sweden
3320 351 7067 302 Deutsche Telekom AG
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 1477 2899 244 UniNet S.A. de C.V.
10620 1012 227 95 TVCABLE BOGOTA
28573 710 622 62 NET Servicos de Comunicao S.A
7303 637 339 94 Telecom Argentina Stet-France
22047 545 302 14 VTR PUNTO NET S.A.
11830 473 309 76 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 971 188 7 TEDATA
24863 938 96 61 LINKdotNET AS number
3741 272 856 234 The Internet Solution
2018 197 187 118 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
33776 120 7 11 Starcomms Nigeria Limited
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 4162 3627 314 bellsouth.net, inc.
4323 3701 1045 382 Time Warner Telecom
4766 1766 6995 456 Korea Telecom (KIX)
1785 1751 714 138 PaeTec Communications, Inc.
7018 1514 5876 1057 AT&T WorldNet Services
20115 1479 1477 668 Charter Communications
8151 1477 2899 244 UniNet S.A. de C.V.
17488 1477 135 139 Hathway IP Over Cable Interne
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 3319 Time Warner Telecom
1785 1751 1613 PaeTec Communications, Inc.
17488 1477 1338 Hathway IP Over Cable Interne
4766 1766 1310 Korea Telecom (KIX)
8151 1477 1233 UniNet S.A. de C.V.
11492 1128 1116 Cable One
6478 1412 1111 AT&T Worldnet Services
4755 1255 1111 TATA Communications formerly
18566 1062 1052 Covad Communications
22773 1110 1043 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 /15:1200 /16:10675 /17:4830 /18:8366
/19:17461 /20:20865 /21:20908 /22:27101 /23:26769 /24:156587
/25:931 /26:1070 /27:562 /28:170 /29:40 /30:15
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2694 4162 bellsouth.net, inc.
4323 2361 3701 Time Warner Telecom
4766 1439 1766 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 953 1101 Sify Limited
10620 918 1012 TVCABLE BOGOTA
8452 898 971 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 12:2145 13:7 15:22
16:3 17:5 20:36 24:1169 32:52 34:2
38:603 40:97 41:1699 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:25 58:613
59:648 60:454 61:1076 62:1032 63:2001 64:3741
65:2392 66:4087 67:1776 68:963 69:2767 70:575
71:154 72:1655 73:2 74:1944 75:179 76:321
77:876 78:582 79:394 80:902 81:800 82:505
83:432 84:521 85:1027 86:382 87:682 88:381
89:1497 90:61 91:2564 92:402 93:1235 94:1197
95:1103 96:168 97:267 98:297 99:30 109:43
110:209 111:439 112:138 113:151 114:260 115:352
116:1109 117:546 118:327 119:782 120:135 121:779
122:1285 123:775 124:1049 125:1347 128:222 129:216
130:129 131:425 132:74 133:10 134:173 135:42
136:240 137:164 138:177 139:85 140:442 141:121
142:382 143:332 144:349 145:49 146:390 147:171
148:473 149:212 150:212 151:181 152:215 153:155
154:2 155:271 156:165 157:307 158:113 159:353
160:291 161:165 162:271 163:170 164:280 165:519
166:474 167:375 168:790 169:168 170:471 171:43
172:2 173:418 174:360 175:1 178:1 180:36
182:1 186:142 187:155 188:1045 189:591 190:3070
192:5776 193:4255 194:3287 195:2751 196:1145 198:3553
199:3351 200:5212 201:1327 202:7854 203:8262 204:3934
205:2199 206:2440 207:2973 208:3963 209:3471 210:2559
211:1123 212:1614 213:1629 214:184 215:40 216:4384
217:1313 218:413 219:450 220:1127 221:441 222:318
End of report