Routing Table Report 04:00 +10GMT Tue 18 May, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 320851
Prefixes after maximum aggregation: 148291
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 156807
Total ASes present in the Internet Routing Table: 34000
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 29514
Origin ASes announcing only one prefix: 14362
Transit ASes present in the Internet Routing Table: 4486
Transit-only ASes present in the Internet Routing Table: 100
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 339
Unregistered ASNs in the Routing Table: 121
Number of 32-bit ASNs allocated by the RIRs: 570
Prefixes from 32-bit ASNs in the Routing Table: 639
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 188
Number of addresses announced to Internet: 2219914496
Equivalent to 132 /8s, 81 /16s and 53 /24s
Percentage of available address space announced: 59.9
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.8
Total number of prefixes smaller than registry allocations: 153674
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76607
Total APNIC prefixes after maximum aggregation: 26795
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 73594
Unique aggregates announced from the APNIC address blocks: 32256
APNIC Region origin ASes present in the Internet Routing Table: 4038
APNIC Prefixes per ASN: 18.23
APNIC Region origin ASes announcing only one prefix: 1108
APNIC Region transit ASes present in the Internet Routing Table: 624
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 519213376
Equivalent to 30 /8s, 242 /16s and 145 /24s
Percentage of available APNIC address space announced: 77.4
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 1/8, 14/8, 27/8, 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, 133/8, 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, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 133939
Total ARIN prefixes after maximum aggregation: 69162
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 106817
Unique aggregates announced from the ARIN address blocks: 41583
ARIN Region origin ASes present in the Internet Routing Table: 13696
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5279
ARIN Region transit ASes present in the Internet Routing Table: 1354
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731070496
Equivalent to 43 /8s, 147 /16s and 64 /24s
Percentage of available ARIN address space announced: 62.3
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, 50/8, 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, 107/8,
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: 73740
Total RIPE prefixes after maximum aggregation: 42818
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 66741
Unique aggregates announced from the RIPE address blocks: 43898
RIPE Region origin ASes present in the Internet Routing Table: 14441
RIPE Prefixes per ASN: 4.62
RIPE Region origin ASes announcing only one prefix: 7460
RIPE Region transit ASes present in the Internet Routing Table: 2157
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 425728672
Equivalent to 25 /8s, 96 /16s and 26 /24s
Percentage of available RIPE address space announced: 74.6
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, 31/8, 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, 176/8, 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: 28387
Total LACNIC prefixes after maximum aggregation: 6771
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 26785
Unique aggregates announced from the LACNIC address blocks: 14034
LACNIC Region origin ASes present in the Internet Routing Table: 1289
LACNIC Prefixes per ASN: 20.78
LACNIC Region origin ASes announcing only one prefix: 407
LACNIC Region transit ASes present in the Internet Routing Table: 224
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73125888
Equivalent to 4 /8s, 91 /16s and 208 /24s
Percentage of available LACNIC address space announced: 72.6
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: 7319
Total AfriNIC prefixes after maximum aggregation: 1851
AfriNIC Deaggregation factor: 3.95
Prefixes being announced from the AfriNIC address blocks: 5613
Unique aggregates announced from the AfriNIC address blocks: 1670
AfriNIC Region origin ASes present in the Internet Routing Table: 362
AfriNIC Prefixes per ASN: 15.51
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 85
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC addresses announced to Internet: 17843200
Equivalent to 1 /8s, 16 /16s and 68 /24s
Percentage of available AfriNIC address space announced: 53.2
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 1849 8422 484 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1309 293 155 TATA Communications formerly
7545 1198 232 105 TPG Internet Pty Ltd
17974 1037 281 18 PT TELEKOMUNIKASI INDONESIA
9583 993 73 484 Sify Limited
4134 936 21190 403 CHINANET-BACKBONE
24560 897 304 167 Bharti Airtel Ltd., Telemedia
4808 844 1589 215 CNCGROUP IP network: China169
9829 772 677 45 BSNL National Internet Backbo
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 3929 3733 288 bellsouth.net, inc.
4323 3840 1116 404 Time Warner Telecom
1785 1784 699 131 PaeTec Communications, Inc.
7018 1552 5757 986 AT&T WorldNet Services
20115 1537 1505 655 Charter Communications
2386 1293 568 914 AT&T Data Communications Serv
6478 1243 256 100 AT&T Worldnet Services
3356 1192 10888 408 Level 3 Communications, LLC
22773 1170 2606 72 Cox Communications, Inc.
11492 1145 209 284 Cable One
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
35805 625 56 6 United Telecom of Georgia
3292 454 2027 393 TDC Tele Danmark
30890 440 116 206 Evolva Telecom
702 414 1869 329 UUNET - Commercial IP service
8551 402 355 38 Bezeq International
8866 394 117 18 Bulgarian Telecommunication C
3301 366 1414 322 TeliaNet Sweden
3320 365 7072 318 Deutsche Telekom AG
12479 336 576 5 Uni2 Autonomous System
3215 331 3218 100 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 1554 2965 245 UniNet S.A. de C.V.
10620 1037 233 151 TVCABLE BOGOTA
28573 889 730 83 NET Servicos de Comunicao S.A
7303 720 372 101 Telecom Argentina Stet-France
6503 575 173 209 AVANTEL, S.A.
22047 544 310 15 VTR PUNTO NET S.A.
7738 477 922 30 Telecomunicacoes da Bahia S.A
3816 468 201 73 Empresa Nacional de Telecomun
14117 448 30 13 Telefonica del Sur S.A.
11172 444 99 72 Servicios Alestra S.A de C.V
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 1253 445 10 TEDATA
24863 714 147 39 LINKdotNET AS number
36992 636 276 182 Etisalat MISR
3741 271 852 232 The Internet Solution
2018 216 231 112 Tertiary Education Network
33776 214 11 15 Starcomms Nigeria Limited
24835 177 78 10 RAYA Telecom - Egypt
6713 176 167 12 Itissalat Al-MAGHRIB
29571 172 19 9 Ci Telecom Autonomous system
29975 133 506 14 Vodacom
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 3929 3733 288 bellsouth.net, inc.
4323 3840 1116 404 Time Warner Telecom
4766 1849 8422 484 Korea Telecom (KIX)
1785 1784 699 131 PaeTec Communications, Inc.
8151 1554 2965 245 UniNet S.A. de C.V.
7018 1552 5757 986 AT&T WorldNet Services
20115 1537 1505 655 Charter Communications
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1309 293 155 TATA Communications formerly
2386 1293 568 914 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 3840 3436 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
4766 1849 1365 Korea Telecom (KIX)
8151 1554 1309 UniNet S.A. de C.V.
8452 1253 1243 TEDATA
17488 1316 1193 Hathway IP Over Cable Interne
4755 1309 1154 TATA Communications formerly
6478 1243 1143 AT&T Worldnet Services
22773 1170 1098 Cox Communications, Inc.
7545 1198 1093 TPG Internet Pty Ltd
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.202.96.0/19 29571 Ci Telecom Autonomous system
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 22351 Intelsat
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
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 /10:26 /11:67 /12:194
/13:403 /14:693 /15:1265 /16:11061 /17:5277 /18:8985
/19:18279 /20:22556 /21:22640 /22:29481 /23:29071 /24:167883
/25:950 /26:1203 /27:621 /28:143 /29:9 /30:7
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2513 3929 bellsouth.net, inc.
4323 2333 3840 Time Warner Telecom
4766 1481 1849 Korea Telecom (KIX)
1785 1247 1784 PaeTec Communications, Inc.
8452 1131 1253 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1061 1145 Cable One
18566 1040 1059 Covad Communications
10620 953 1037 TVCABLE BOGOTA
7018 934 1552 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:13 8:265 12:2015 13:10 15:23
16:3 17:8 20:21 24:1412 27:63 31:1
32:47 33:12 38:670 40:98 41:2469 44:3
47:26 52:6 55:7 56:2 57:24 58:724
59:509 60:434 61:1091 62:1051 63:1978 64:3852
65:2365 66:4192 67:1839 68:1107 69:2813 70:712
71:243 72:1814 73:2 74:2281 75:251 76:306
77:871 78:631 79:411 80:1008 81:794 82:475
83:446 84:692 85:1044 86:457 87:699 88:327
89:1534 90:88 91:2759 92:484 93:1087 94:1408
95:601 96:248 97:312 98:547 99:28 108:16
109:477 110:348 111:500 112:257 113:283 114:399
115:593 116:1032 117:640 118:433 119:955 120:141
121:733 122:1436 123:888 124:1110 125:1293 128:209
129:210 130:192 131:559 132:246 133:17 134:194
135:44 136:228 137:172 138:255 139:92 140:483
141:136 142:353 143:390 144:476 145:52 146:425
147:164 148:608 149:289 150:153 151:169 152:262
153:167 154:2 155:329 156:154 157:323 158:107
159:372 160:313 161:205 162:262 163:172 164:408
165:346 166:480 167:393 168:785 169:161 170:701
171:51 172:2 173:736 174:616 175:92 176:1
178:92 180:472 182:57 183:251 184:44 186:380
187:342 188:1293 189:774 190:3581 192:5741 193:4694
194:3345 195:2768 196:1215 197:1 198:3561 199:3429
200:5291 201:1489 202:8002 203:8286 204:4051 205:2331
206:2537 207:3033 208:3918 209:3431 210:2506 211:1245
212:1730 213:1671 214:658 215:70 216:4587 217:1527
218:490 219:372 220:1107 221:400 222:307
End of report