Routing Table Report 04:00 +10GMT Thu 20 May, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 320786
Prefixes after maximum aggregation: 148337
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 156925
Total ASes present in the Internet Routing Table: 34033
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 29539
Origin ASes announcing only one prefix: 14367
Transit ASes present in the Internet Routing Table: 4494
Transit-only ASes present in the Internet Routing Table: 99
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: 343
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 573
Prefixes from 32-bit ASNs in the Routing Table: 641
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 193
Number of addresses announced to Internet: 2220916032
Equivalent to 132 /8s, 96 /16s and 125 /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: 82.9
Total number of prefixes smaller than registry allocations: 153617
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76642
Total APNIC prefixes after maximum aggregation: 26802
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 73630
Unique aggregates announced from the APNIC address blocks: 32263
APNIC Region origin ASes present in the Internet Routing Table: 4041
APNIC Prefixes per ASN: 18.22
APNIC Region origin ASes announcing only one prefix: 1110
APNIC Region transit ASes present in the Internet Routing Table: 620
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 519867456
Equivalent to 30 /8s, 252 /16s and 140 /24s
Percentage of available APNIC address space announced: 77.5
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 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: 134018
Total ARIN prefixes after maximum aggregation: 69079
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 106936
Unique aggregates announced from the ARIN address blocks: 41539
ARIN Region origin ASes present in the Internet Routing Table: 13705
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5289
ARIN Region transit ASes present in the Internet Routing Table: 1357
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731109664
Equivalent to 43 /8s, 147 /16s and 217 /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: 73916
Total RIPE prefixes after maximum aggregation: 42935
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 66891
Unique aggregates announced from the RIPE address blocks: 44022
RIPE Region origin ASes present in the Internet Routing Table: 14456
RIPE Prefixes per ASN: 4.63
RIPE Region origin ASes announcing only one prefix: 7458
RIPE Region transit ASes present in the Internet Routing Table: 2166
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 426039008
Equivalent to 25 /8s, 100 /16s and 214 /24s
Percentage of available RIPE address space announced: 74.7
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: 28054
Total LACNIC prefixes after maximum aggregation: 6759
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 26454
Unique aggregates announced from the LACNIC address blocks: 14043
LACNIC Region origin ASes present in the Internet Routing Table: 1292
LACNIC Prefixes per ASN: 20.48
LACNIC Region origin ASes announcing only one prefix: 405
LACNIC Region transit ASes present in the Internet Routing Table: 226
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73138688
Equivalent to 4 /8s, 92 /16s and 2 /24s
Percentage of available LACNIC address space announced: 72.7
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: 7292
Total AfriNIC prefixes after maximum aggregation: 1865
AfriNIC Deaggregation factor: 3.91
Prefixes being announced from the AfriNIC address blocks: 5582
Unique aggregates announced from the AfriNIC address blocks: 1678
AfriNIC Region origin ASes present in the Internet Routing Table: 363
AfriNIC Prefixes per ASN: 15.38
AfriNIC Region origin ASes announcing only one prefix: 105
AfriNIC Region transit ASes present in the Internet Routing Table: 83
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC addresses announced to Internet: 17840384
Equivalent to 1 /8s, 16 /16s and 57 /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 1848 8422 483 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1305 293 151 TATA Communications formerly
7545 1208 232 104 TPG Internet Pty Ltd
17974 1057 281 18 PT TELEKOMUNIKASI INDONESIA
9583 994 73 485 Sify Limited
4134 934 21194 404 CHINANET-BACKBONE
24560 898 304 167 Bharti Airtel Ltd., Telemedia
4808 845 1589 215 CNCGROUP IP network: China169
9829 790 680 33 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 3931 3721 299 bellsouth.net, inc.
4323 3844 1116 404 Time Warner Telecom
1785 1783 699 130 PaeTec Communications, Inc.
7018 1546 5756 981 AT&T WorldNet Services
20115 1538 1506 654 Charter Communications
2386 1292 568 913 AT&T Data Communications Serv
6478 1247 257 98 AT&T Worldnet Services
3356 1191 10887 406 Level 3 Communications, LLC
22773 1172 2606 72 Cox Communications, Inc.
11492 1146 210 285 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 441 116 207 Evolva Telecom
702 415 1869 329 UUNET - Commercial IP service
8551 402 355 38 Bezeq International
8866 394 117 18 Bulgarian Telecommunication C
3301 365 1413 321 TeliaNet Sweden
3320 364 7072 317 Deutsche Telekom AG
12479 337 576 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 1553 2965 246 UniNet S.A. de C.V.
10620 1039 233 151 TVCABLE BOGOTA
28573 873 720 76 NET Servicos de Comunicao S.A
7303 729 375 104 Telecom Argentina Stet-France
6503 576 173 209 AVANTEL, S.A.
22047 545 310 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 1262 445 10 TEDATA
24863 714 147 39 LINKdotNET AS number
36992 634 276 180 Etisalat MISR
3741 270 852 231 The Internet Solution
2018 216 231 112 Tertiary Education Network
33776 189 11 21 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 175 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 132 490 17 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 3931 3721 299 bellsouth.net, inc.
4323 3844 1116 404 Time Warner Telecom
4766 1848 8422 483 Korea Telecom (KIX)
1785 1783 699 130 PaeTec Communications, Inc.
8151 1553 2965 246 UniNet S.A. de C.V.
7018 1546 5756 981 AT&T WorldNet Services
20115 1538 1506 654 Charter Communications
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1305 293 151 TATA Communications formerly
2386 1292 568 913 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 3844 3440 Time Warner Telecom
1785 1783 1653 PaeTec Communications, Inc.
4766 1848 1365 Korea Telecom (KIX)
8151 1553 1307 UniNet S.A. de C.V.
8452 1262 1252 TEDATA
17488 1316 1193 Hathway IP Over Cable Interne
4755 1305 1154 TATA Communications formerly
6478 1247 1149 AT&T Worldnet Services
7545 1208 1104 TPG Internet Pty Ltd
22773 1172 1100 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 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
41.74.128.0/20 8657 CPRM Autonomous System
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 26452 Local Communications Networks
41.223.196.0/24 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
/13:404 /14:694 /15:1269 /16:11074 /17:5273 /18:8976
/19:18259 /20:22543 /21:22601 /22:29390 /23:29112 /24:167937
/25:952 /26:1200 /27:619 /28:143 /29:9 /30:7
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2516 3931 bellsouth.net, inc.
4323 2334 3844 Time Warner Telecom
4766 1480 1848 Korea Telecom (KIX)
1785 1247 1783 PaeTec Communications, Inc.
8452 1140 1262 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1062 1146 Cable One
18566 1040 1059 Covad Communications
10620 955 1039 TVCABLE BOGOTA
7018 931 1546 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 8:262 12:2015 13:10 14:1
15:23 16:3 17:8 20:21 24:1427 27:96
31:1 32:47 33:12 38:670 40:98 41:2457
44:3 47:26 52:6 55:8 56:2 57:24
58:731 59:501 60:434 61:1085 62:1049 63:1978
64:3849 65:2365 66:4202 67:1841 68:1109 69:2823
70:708 71:243 72:1817 73:2 74:2289 75:251
76:309 77:872 78:631 79:411 80:1011 81:792
82:480 83:453 84:693 85:1052 86:466 87:701
88:328 89:1546 90:88 91:2760 92:488 93:1110
94:1426 95:596 96:279 97:313 98:547 99:28
108:16 109:477 110:350 111:502 112:259 113:281
114:406 115:589 116:1036 117:637 118:437 119:950
120:140 121:727 122:1440 123:894 124:1100 125:1279
128:209 129:210 130:192 131:560 132:246 133:17
134:194 135:44 136:229 137:172 138:255 139:91
140:483 141:137 142:352 143:383 144:479 145:52
146:427 147:164 148:608 149:289 150:152 151:169
152:261 153:167 154:2 155:328 156:154 157:323
158:107 159:372 160:312 161:185 162:262 163:179
164:407 165:347 166:476 167:392 168:784 169:160
170:706 171:51 172:2 173:736 174:618 175:93
176:1 178:92 180:474 182:61 183:251 184:45
186:291 187:337 188:1315 189:777 190:3571 192:5738
193:4687 194:3352 195:2767 196:1217 197:1 198:3560
199:3428 200:5302 201:1485 202:7985 203:8251 204:4058
205:2329 206:2540 207:3035 208:3907 209:3424 210:2504
211:1245 212:1736 213:1669 214:664 215:70 216:4584
217:1538 218:491 219:372 220:1108 221:400 222:325
223:1
End of report