Routing Table Report 04:00 +10GMT Thu 10 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 345357
Prefixes after maximum aggregation: 155769
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 170883
Total ASes present in the Internet Routing Table: 35825
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 30874
Origin ASes announcing only one prefix: 14964
Transit ASes present in the Internet Routing Table: 4951
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 426
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 1092
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2415243008
Equivalent to 143 /8s, 245 /16s and 175 /24s
Percentage of available address space announced: 65.2
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.2
Total number of prefixes smaller than registry allocations: 142680
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85338
Total APNIC prefixes after maximum aggregation: 28929
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82020
Unique aggregates announced from the APNIC address blocks: 35736
APNIC Region origin ASes present in the Internet Routing Table: 4321
APNIC Prefixes per ASN: 18.98
APNIC Region origin ASes announcing only one prefix: 1210
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 586841888
Equivalent to 34 /8s, 250 /16s and 127 /24s
Percentage of available APNIC address space announced: 74.4
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, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 138936
Total ARIN prefixes after maximum aggregation: 71207
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109706
Unique aggregates announced from the ARIN address blocks: 44771
ARIN Region origin ASes present in the Internet Routing Table: 14179
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5414
ARIN Region transit ASes present in the Internet Routing Table: 1474
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 752438144
Equivalent to 44 /8s, 217 /16s and 75 /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, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 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, 100/8,
104/8, 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: 81713
Total RIPE prefixes after maximum aggregation: 46370
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75018
Unique aggregates announced from the RIPE address blocks: 48765
RIPE Region origin ASes present in the Internet Routing Table: 15279
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7773
RIPE Region transit ASes present in the Internet Routing Table: 2369
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 458353920
Equivalent to 27 /8s, 81 /16s and 237 /24s
Percentage of available RIPE address space announced: 73.8
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, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31680
Total LACNIC prefixes after maximum aggregation: 7304
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30445
Unique aggregates announced from the LACNIC address blocks: 15921
LACNIC Region origin ASes present in the Internet Routing Table: 1428
LACNIC Prefixes per ASN: 21.32
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80510592
Equivalent to 4 /8s, 204 /16s and 126 /24s
Percentage of available LACNIC address space announced: 53.3
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7470
Total AfriNIC prefixes after maximum aggregation: 1847
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5881
Unique aggregates announced from the AfriNIC address blocks: 1839
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21870848
Equivalent to 1 /8s, 77 /16s and 185 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1974 9486 551 Korea Telecom (KIX)
7545 1634 301 84 TPG Internet Pty Ltd
4755 1412 633 160 TATA Communications formerly
17974 1397 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1108 323 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 952 162 104 Hathway IP Over Cable Interne
18101 928 116 144 Reliance Infocom Ltd Internet
9829 897 763 42 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3714 3855 265 bellsouth.net, inc.
4323 2623 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
20115 1527 1534 643 Charter Communications
6478 1494 296 75 AT&T Worldnet Services
7018 1354 6673 871 AT&T WorldNet Services
2386 1298 553 935 AT&T Data Communications Serv
22773 1274 2864 76 Cox Communications, Inc.
11492 1265 235 79 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6830 515 1764 319 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 456 97 137 BILISIM TELEKOM
3292 444 1996 387 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 407 7620 355 Deutsche Telekom AG
8551 403 353 46 Bezeq International
20940 401 93 308 Akamai Technologies European
702 395 1800 308 UUNET - Commercial IP service
3301 383 1822 341 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1374 255 164 TVCABLE BOGOTA
8151 1340 2648 359 UniNet S.A. de C.V.
28573 1243 961 82 NET Servicos de Comunicao S.A
6503 1188 355 78 AVANTEL, S.A.
7303 881 447 134 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 502 220 94 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 457 34 32 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 780 445 11 TEDATA
24863 762 147 39 LINKdotNET AS number
36992 594 313 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 209 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 146 422 83 MTN Network Solutions
29975 132 490 17 Vodacom
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3714 3855 265 bellsouth.net, inc.
4323 2623 1109 403 Time Warner Telecom
4766 1974 9486 551 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
7545 1634 301 84 TPG Internet Pty Ltd
20115 1527 1534 643 Charter Communications
6478 1494 296 75 AT&T Worldnet Services
4755 1412 633 160 TATA Communications formerly
17974 1397 467 28 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2623 2220 Time Warner Telecom
1785 1786 1654 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1634 1550 TPG Internet Pty Ltd
4766 1974 1423 Korea Telecom (KIX)
6478 1494 1419 AT&T Worldnet Services
17974 1397 1369 PT TELEKOMUNIKASI INDONESIA
4755 1412 1252 TATA Communications formerly
10620 1374 1210 TVCABLE BOGOTA
22773 1274 1198 Cox Communications, Inc.
Complete listing at http://thyme.rand.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 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
Complete listing at http://thyme.rand.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 /8:21 /9:11 /10:26 /11:72 /12:221
/13:446 /14:770 /15:1370 /16:11554 /17:5639 /18:9313
/19:18824 /20:24333 /21:24719 /22:32950 /23:31575 /24:180715
/25:971 /26:1067 /27:566 /28:167 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2292 3714 bellsouth.net, inc.
6478 1448 1494 AT&T Worldnet Services
4323 1412 2623 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1222 1265 Cable One
18566 1175 1197 Covad Communications
7011 1062 1165 Citizens Utilities
1785 1055 1786 PaeTec Communications, Inc.
6503 965 1188 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:173 2:45 4:13 5:1 8:333 12:2026
13:1 14:422 15:15 16:3 17:8 20:9
23:1 24:1472 27:579 32:61 33:5 34:2
37:1 38:701 40:101 41:2287 44:3 46:571
47:5 49:144 50:82 52:12 55:4 56:2
57:32 58:868 59:483 60:391 61:1114 62:1093
63:1941 64:3742 65:2359 66:4149 67:1760 68:1008
69:2890 70:714 71:396 72:1969 73:1 74:2326
75:294 76:341 77:866 78:700 79:441 80:1044
81:824 82:535 83:471 84:647 85:1048 86:535
87:741 88:357 89:1563 90:156 91:3470 92:493
93:1039 94:1200 95:759 96:426 97:250 98:788
99:33 101:27 107:3 108:86 109:910 110:472
111:698 112:310 113:357 114:497 115:641 116:923
117:678 118:662 119:1021 120:240 121:703 122:1632
123:1061 124:1281 125:1219 128:264 129:153 130:174
131:571 132:109 133:20 134:217 135:49 136:216
137:147 138:289 139:119 140:490 141:196 142:358
143:383 144:487 145:51 146:430 147:200 148:633
149:274 150:160 151:230 152:306 153:177 154:3
155:348 156:176 157:342 158:129 159:380 160:315
161:205 162:271 163:161 164:487 165:338 166:497
167:421 168:741 169:152 170:745 171:68 172:2
173:1280 174:518 175:315 176:1 177:4 178:788
180:792 182:344 183:252 184:208 186:1008 187:812
188:906 189:1049 190:4369 192:5796 193:4800 194:3507
195:2950 196:1178 197:3 198:3573 199:3779 200:5602
201:1575 202:8259 203:8432 204:4117 205:2337 206:2630
207:3078 208:3883 209:3490 210:2647 211:1331 212:1865
213:1724 214:762 215:62 216:4865 217:1607 218:531
219:376 220:1204 221:449 222:318 223:95
End of report
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