Routing Table Report 04:00 +10GMT Mon 13 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 359375
Prefixes after maximum aggregation: 162755
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178450
Total ASes present in the Internet Routing Table: 37843
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31581
Origin ASes announcing only one prefix: 15169
Transit ASes present in the Internet Routing Table: 5115
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 783
Unregistered ASNs in the Routing Table: 422
Number of 32-bit ASNs allocated by the RIRs: 1450
Number of 32-bit ASNs visible in the Routing Table: 1147
Prefixes from 32-bit ASNs in the Routing Table: 2654
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 158
Number of addresses announced to Internet: 2487899392
Equivalent to 148 /8s, 74 /16s and 85 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 150000
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89084
Total APNIC prefixes after maximum aggregation: 30103
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 85547
Unique aggregates announced from the APNIC address blocks: 36707
APNIC Region origin ASes present in the Internet Routing Table: 4479
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 620169504
Equivalent to 36 /8s, 247 /16s and 9 /24s
Percentage of available APNIC address space announced: 78.6
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: 140876
Total ARIN prefixes after maximum aggregation: 71590
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112802
Unique aggregates announced from the ARIN address blocks: 46104
ARIN Region origin ASes present in the Internet Routing Table: 14424
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5507
ARIN Region transit ASes present in the Internet Routing Table: 1512
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818700288
Equivalent to 48 /8s, 204 /16s and 96 /24s
Percentage of available ARIN address space announced: 65.1
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, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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: 85468
Total RIPE prefixes after maximum aggregation: 48678
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78934
Unique aggregates announced from the RIPE address blocks: 52380
RIPE Region origin ASes present in the Internet Routing Table: 15691
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7837
RIPE Region transit ASes present in the Internet Routing Table: 2472
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 847
Number of RIPE addresses announced to Internet: 477089024
Equivalent to 28 /8s, 111 /16s and 205 /24s
Percentage of available RIPE address space announced: 76.9
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: 33047
Total LACNIC prefixes after maximum aggregation: 7510
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32146
Unique aggregates announced from the LACNIC address blocks: 16961
LACNIC Region origin ASes present in the Internet Routing Table: 1463
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 237
Number of LACNIC addresses announced to Internet: 84855552
Equivalent to 5 /8s, 14 /16s and 203 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8023
Total AfriNIC prefixes after maximum aggregation: 1907
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6329
Unique aggregates announced from the AfriNIC address blocks: 1863
AfriNIC Region origin ASes present in the Internet Routing Table: 456
AfriNIC Prefixes per ASN: 13.88
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 24138752
Equivalent to 1 /8s, 112 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 36.0
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 2462 9500 924 Korea Telecom (KIX)
17974 1546 439 35 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
4755 1471 634 166 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
4808 1052 2098 299 CNCGROUP IP network: China169
9829 1040 878 60 BSNL National Internet Backbo
17488 946 191 102 Hathway IP Over Cable Interne
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 3628 3822 252 bellsouth.net, inc.
4323 1961 1081 399 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1793 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
20115 1539 1541 633 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1363 7052 891 AT&T WorldNet Services
22773 1340 2897 87 Cox Communications, Inc.
2386 1268 536 909 AT&T Data Communications Serv
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
34984 521 106 180 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 464 2078 399 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 435 593 7 Uni2 Autonomous System
3320 426 8152 371 Deutsche Telekom AG
8551 406 355 45 Bezeq International
702 396 1803 310 UUNET - Commercial IP service
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 1513 278 157 TVCABLE BOGOTA
28573 1321 992 80 NET Servicos de Comunicao S.A
8151 1267 2727 363 UniNet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 739 354 73 AVANTEL, S.A.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 531 231 94 Empresa Nacional de Telecomun
13489 517 262 122 Orbitel S.A. E.S.P.
7738 516 986 31 Telecomunicacoes da Bahia 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
24863 795 147 37 LINKdotNET AS number
8452 785 445 11 TEDATA
15475 526 74 8 Nile Online
36992 307 415 16 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 86 MTN Network Solutions
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 3628 3822 252 bellsouth.net, inc.
23456 2654 650 1437 32-bit ASN transition
4766 2462 9500 924 Korea Telecom (KIX)
4323 1961 1081 399 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1793 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
17974 1546 439 35 PT TELEKOMUNIKASI INDONESIA
20115 1539 1541 633 Charter Communications
7545 1538 301 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1728 1678 AT&T Worldnet Services
18566 1913 1676 Covad Communications
1785 1793 1671 PaeTec Communications, Inc.
4323 1961 1562 Time Warner Telecom
4766 2462 1538 Korea Telecom (KIX)
17974 1546 1511 PT TELEKOMUNIKASI INDONESIA
7545 1538 1452 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1471 1305 TATA Communications formerly
22773 1340 1253 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
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:80 /12:230
/13:462 /14:800 /15:1394 /16:11951 /17:5849 /18:9792
/19:19376 /20:25858 /21:26011 /22:34239 /23:33231 /24:186909
/25:1090 /26:1264 /27:718 /28:42 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2232 3628 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1319 2654 32-bit ASN transition
11492 1090 1136 Cable One
7011 1061 1161 Citizens Utilities
1785 1049 1793 PaeTec Communications, Inc.
7029 908 1158 Alltel Information Services,
4323 874 1961 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:287 2:46 4:16 5:1 6:3 8:336
12:1974 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1611 27:778 31:431 32:60
33:4 34:2 37:1 38:732 40:103 41:2507
42:2 44:3 46:957 47:3 49:188 50:408
52:13 54:2 55:3 56:2 57:32 58:841
59:475 60:387 61:1120 62:1052 63:1932 64:3938
65:2249 66:4135 67:1883 68:1086 69:3004 70:704
71:372 72:1848 74:2354 75:309 76:341 77:882
78:705 79:459 80:1104 81:830 82:491 83:461
84:665 85:1078 86:581 87:756 88:330 89:1527
90:204 91:3840 92:526 93:1036 94:1306 95:835
96:445 97:251 98:872 99:36 101:68 103:59
106:6 107:11 108:82 109:972 110:600 111:710
112:299 113:401 114:536 115:687 116:959 117:675
118:792 119:1144 120:310 121:669 122:1628 123:949
124:1267 125:1218 128:261 129:175 130:164 131:578
132:110 133:19 134:214 135:48 136:214 137:143
138:301 139:112 140:479 141:238 142:403 143:413
144:490 145:54 146:446 147:212 148:604 149:246
150:172 151:187 152:329 153:180 154:3 155:399
156:195 157:353 158:137 159:380 160:318 161:207
162:309 163:165 164:500 165:353 166:530 167:423
168:740 169:155 170:836 171:77 172:1 173:1606
174:584 175:371 176:134 177:153 178:998 180:888
181:18 182:466 183:218 184:298 185:1 186:1211
187:770 188:846 189:917 190:4894 192:5842 193:4903
194:3487 195:2991 196:1227 197:20 198:3586 199:3924
200:5493 201:1479 202:8315 203:8341 204:4188 205:2345
206:2684 207:2825 208:3941 209:3466 210:2715 211:1400
212:2004 213:1719 214:738 215:69 216:4922 217:1656
218:544 219:364 220:1206 221:490 222:317 223:156
End of report
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