Routing Table Report 04:00 +10GMT Tue 01 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 340917
Prefixes after maximum aggregation: 154733
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169301
Total ASes present in the Internet Routing Table: 35712
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 30792
Origin ASes announcing only one prefix: 14942
Transit ASes present in the Internet Routing Table: 4920
Transit-only ASes present in the Internet Routing Table: 121
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: 316
Unregistered ASNs in the Routing Table: 126
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 204
Number of addresses announced to Internet: 2350070080
Equivalent to 140 /8s, 19 /16s and 57 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 139898
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85074
Total APNIC prefixes after maximum aggregation: 28807
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81853
Unique aggregates announced from the APNIC address blocks: 35544
APNIC Region origin ASes present in the Internet Routing Table: 4316
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 586957088
Equivalent to 34 /8s, 252 /16s and 65 /24s
Percentage of available APNIC address space announced: 79.5
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, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 138006
Total ARIN prefixes after maximum aggregation: 70737
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108926
Unique aggregates announced from the ARIN address blocks: 44490
ARIN Region origin ASes present in the Internet Routing Table: 14155
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5411
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751611008
Equivalent to 44 /8s, 204 /16s and 172 /24s
Percentage of available ARIN address space announced: 63.1
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,
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: 81328
Total RIPE prefixes after maximum aggregation: 46172
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74655
Unique aggregates announced from the RIPE address blocks: 48451
RIPE Region origin ASes present in the Internet Routing Table: 15234
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7762
RIPE Region transit ASes present in the Internet Routing Table: 2367
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457143872
Equivalent to 27 /8s, 63 /16s and 118 /24s
Percentage of available RIPE address space announced: 75.7
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, 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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31569
Total LACNIC prefixes after maximum aggregation: 7231
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 30318
Unique aggregates announced from the LACNIC address blocks: 15736
LACNIC Region origin ASes present in the Internet Routing Table: 1419
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80231040
Equivalent to 4 /8s, 200 /16s and 58 /24s
Percentage of available LACNIC address space announced: 59.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 4716
Total AfriNIC prefixes after maximum aggregation: 1665
AfriNIC Deaggregation factor: 2.83
Prefixes being announced from the AfriNIC address blocks: 3531
Unique aggregates announced from the AfriNIC address blocks: 1593
AfriNIC Region origin ASes present in the Internet Routing Table: 406
AfriNIC Prefixes per ASN: 8.70
AfriNIC Region origin ASes announcing only one prefix: 126
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 18397952
Equivalent to 1 /8s, 24 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 36.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1915 9485 526 Korea Telecom (KIX)
7545 1598 301 82 TPG Internet Pty Ltd
4755 1405 637 161 TATA Communications formerly
17974 1375 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1034 2130 292 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 925 117 142 Reliance Infocom Ltd Internet
9829 896 762 41 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 3709 3855 265 bellsouth.net, inc.
4323 2634 1109 403 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 133 PaeTec Communications, Inc.
20115 1521 1531 642 Charter Communications
6478 1470 289 114 AT&T Worldnet Services
7018 1355 6674 876 AT&T WorldNet Services
2386 1298 553 935 AT&T Data Communications Serv
22773 1277 2865 78 Cox Communications, Inc.
11492 1271 235 74 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 457 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 439 133 23 Bulgarian Telecommunication C
12479 413 577 6 Uni2 Autonomous System
3320 403 7619 352 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1816 309 UUNET - Commercial IP service
20940 389 88 301 Akamai Technologies European
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 1358 252 163 TVCABLE BOGOTA
8151 1333 2631 358 UniNet S.A. de C.V.
28573 1246 961 82 NET Servicos de Comunicao S.A
6503 1149 355 78 AVANTEL, S.A.
7303 889 461 115 Telecom Argentina Stet-France
14420 614 55 90 CORPORACION NACIONAL DE TELEC
22047 566 310 15 VTR PUNTO NET S.A.
3816 505 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 152 438 87 MTN Network Solutions
36874 139 24 6 Cybersmart
29975 131 490 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 106 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service
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 3709 3855 265 bellsouth.net, inc.
4323 2634 1109 403 Time Warner Telecom
4766 1915 9485 526 Korea Telecom (KIX)
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 133 PaeTec Communications, Inc.
7545 1598 301 82 TPG Internet Pty Ltd
20115 1521 1531 642 Charter Communications
6478 1470 289 114 AT&T Worldnet Services
4755 1405 637 161 TATA Communications formerly
17974 1375 467 27 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 2634 2231 Time Warner Telecom
1785 1787 1654 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1598 1516 TPG Internet Pty Ltd
4766 1915 1389 Korea Telecom (KIX)
6478 1470 1356 AT&T Worldnet Services
17974 1375 1348 PT TELEKOMUNIKASI INDONESIA
4755 1405 1244 TATA Communications formerly
22773 1277 1199 Cox Communications, Inc.
11492 1271 1197 Cable One
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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
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 /8:19 /9:10 /10:26 /11:71 /12:214
/13:440 /14:766 /15:1358 /16:11470 /17:5595 /18:9245
/19:18764 /20:24214 /21:24575 /22:32427 /23:30956 /24:177945
/25:989 /26:1063 /27:581 /28:162 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1424 1470 AT&T Worldnet Services
4323 1422 2634 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1227 1271 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1787 PaeTec Communications, Inc.
19262 954 1841 Verizon Global Networks
6503 933 1149 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:34 4:13 5:1 8:330 12:2030
13:1 14:382 15:15 16:3 17:8 20:9
23:1 24:1465 27:564 32:61 33:5 34:2
36:1 37:1 38:693 40:101 41:1645 42:1
44:3 46:528 47:5 49:143 50:76 52:12
55:5 56:2 57:30 58:866 59:483 60:391
61:1115 62:857 63:1917 64:3759 65:2331 66:4068
67:1756 68:1005 69:2876 70:717 71:391 72:1991
73:1 74:2312 75:293 76:329 77:853 78:693
79:441 80:1024 81:759 82:513 83:472 84:461
85:1051 86:510 87:727 88:359 89:1584 90:159
91:3435 92:493 93:1042 94:1192 95:780 96:413
97:249 98:756 99:33 101:24 107:3 108:81
109:863 110:471 111:695 112:313 113:358 114:490
115:635 116:879 117:673 118:651 119:1029 120:241
121:702 122:1609 123:1052 124:1268 125:1216 128:247
129:155 130:174 131:570 132:110 133:20 134:218
135:49 136:216 137:147 138:293 139:120 140:490
141:198 142:362 143:377 144:484 145:51 146:426
147:194 148:625 149:273 150:150 151:230 152:303
153:175 154:3 155:347 156:171 157:341 158:128
159:377 160:314 161:205 162:277 163:118 164:485
165:338 166:481 167:421 168:739 169:152 170:749
171:66 172:1 173:1262 174:518 175:313 176:1
177:4 178:762 180:777 182:400 183:247 184:208
186:966 187:793 188:905 189:1025 190:4430 192:5783
193:4786 194:3472 195:2917 196:1021 197:3 198:3552
199:3746 200:5548 201:1582 202:8255 203:8434 204:4100
205:2344 206:2515 207:2963 208:3872 209:3495 210:2639
211:1331 212:1869 213:1610 214:754 215:62 216:4810
217:1489 218:527 219:375 220:1202 221:449 222:319
223:93
End of report
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