Routing Table Report 04:00 +10GMT Tue 14 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 359426
Prefixes after maximum aggregation: 162799
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178500
Total ASes present in the Internet Routing Table: 37856
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 31588
Origin ASes announcing only one prefix: 15174
Transit ASes present in the Internet Routing Table: 5122
Transit-only ASes present in the Internet Routing Table: 135
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: 784
Unregistered ASNs in the Routing Table: 425
Number of 32-bit ASNs allocated by the RIRs: 1450
Number of 32-bit ASNs visible in the Routing Table: 1146
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: 162
Number of addresses announced to Internet: 2487648768
Equivalent to 148 /8s, 70 /16s and 130 /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: 90.9
Total number of prefixes smaller than registry allocations: 149997
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89125
Total APNIC prefixes after maximum aggregation: 30106
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 85587
Unique aggregates announced from the APNIC address blocks: 36718
APNIC Region origin ASes present in the Internet Routing Table: 4480
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 700
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: 619701536
Equivalent to 36 /8s, 239 /16s and 229 /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: 140862
Total ARIN prefixes after maximum aggregation: 71601
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112797
Unique aggregates announced from the ARIN address blocks: 46104
ARIN Region origin ASes present in the Internet Routing Table: 14427
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5505
ARIN Region transit ASes present in the Internet Routing Table: 1515
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: 818723584
Equivalent to 48 /8s, 204 /16s and 187 /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: 85454
Total RIPE prefixes after maximum aggregation: 48707
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 78909
Unique aggregates announced from the RIPE address blocks: 52398
RIPE Region origin ASes present in the Internet Routing Table: 15694
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: 2473
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: 846
Number of RIPE addresses announced to Internet: 477293312
Equivalent to 28 /8s, 114 /16s and 235 /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: 33065
Total LACNIC prefixes after maximum aggregation: 7508
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32156
Unique aggregates announced from the LACNIC address blocks: 16944
LACNIC Region origin ASes present in the Internet Routing Table: 1465
LACNIC Prefixes per ASN: 21.95
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 262
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: 84861184
Equivalent to 5 /8s, 14 /16s and 225 /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: 8046
Total AfriNIC prefixes after maximum aggregation: 1911
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6351
Unique aggregates announced from the AfriNIC address blocks: 1885
AfriNIC Region origin ASes present in the Internet Routing Table: 460
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 24090368
Equivalent to 1 /8s, 111 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 35.9
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 1562 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
4755 1474 634 167 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1078 80 509 Sify Limited
4808 1052 2098 299 CNCGROUP IP network: China169
9829 1043 879 56 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 681 121 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
20115 1538 1541 632 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1357 7052 885 AT&T WorldNet Services
22773 1340 2897 87 Cox Communications, Inc.
2386 1269 536 910 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 438 593 7 Uni2 Autonomous System
3320 425 8152 370 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 1268 2727 364 UniNet S.A. de C.V.
7303 991 506 169 Telecom Argentina Stet-France
6503 738 354 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 782 445 11 TEDATA
15475 530 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 211 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 681 121 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
17974 1562 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
20115 1538 1541 632 Charter Communications
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 1672 PaeTec Communications, Inc.
4323 1961 1562 Time Warner Telecom
4766 2462 1538 Korea Telecom (KIX)
17974 1562 1524 PT TELEKOMUNIKASI INDONESIA
7545 1538 1452 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1474 1307 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 /15:1393 /16:11945 /17:5850 /18:9788
/19:19377 /20:25856 /21:25992 /22:34259 /23:33221 /24:186954
/25:1111 /26:1270 /27:717 /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 1313 2654 32-bit ASN transition
11492 1089 1135 Cable One
1785 1050 1793 PaeTec Communications, Inc.
7011 1036 1133 Citizens Utilities
7029 909 1159 Alltel Information Services,
4323 873 1961 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:286 2:48 4:16 5:1 6:3 8:336
12:1974 13:1 14:462 15:15 16:3 17:8
20:10 23:11 24:1614 27:780 31:433 32:60
33:4 34:2 37:1 38:735 40:103 41:2517
42:2 44:3 46:925 47:3 49:187 50:408
52:13 54:2 55:3 56:2 57:32 58:851
59:476 60:387 61:1121 62:1054 63:1933 64:3938
65:2252 66:4133 67:1882 68:1086 69:3002 70:704
71:373 72:1848 74:2351 75:309 76:341 77:880
78:701 79:456 80:1103 81:844 82:491 83:461
84:665 85:1078 86:561 87:750 88:330 89:1529
90:204 91:3831 92:526 93:1037 94:1305 95:838
96:445 97:251 98:879 99:36 101:65 103:57
106:6 107:11 108:83 109:1003 110:605 111:710
112:301 113:396 114:536 115:688 116:963 117:676
118:796 119:1148 120:309 121:669 122:1620 123:941
124:1267 125:1226 128:261 129:175 130:164 131:578
132:110 133:19 134:214 135:48 136:214 137:145
138:301 139:112 140:480 141:238 142:404 143:415
144:494 145:54 146:444 147:214 148:606 149:246
150:172 151:187 152:331 153:180 154:4 155:399
156:195 157:353 158:137 159:381 160:318 161:208
162:310 163:165 164:500 165:353 166:529 167:423
168:739 169:155 170:831 171:77 172:1 173:1603
174:583 175:372 176:134 177:165 178:995 180:889
181:18 182:468 183:218 184:300 185:1 186:1210
187:781 188:849 189:914 190:4891 192:5837 193:4905
194:3488 195:2991 196:1228 197:19 198:3584 199:3919
200:5484 201:1478 202:8325 203:8363 204:4187 205:2341
206:2687 207:2821 208:3944 209:3469 210:2714 211:1398
212:2009 213:1692 214:745 215:69 216:4920 217:1656
218:549 219:364 220:1205 221:491 222:317 223:159
End of report
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