Routing Table Report 04:00 +10GMT Thu 16 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 359982
Prefixes after maximum aggregation: 162994
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178789
Total ASes present in the Internet Routing Table: 37879
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31606
Origin ASes announcing only one prefix: 15178
Transit ASes present in the Internet Routing Table: 5124
Transit-only ASes present in the Internet Routing Table: 137
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: 802
Unregistered ASNs in the Routing Table: 432
Number of 32-bit ASNs allocated by the RIRs: 1454
Number of 32-bit ASNs visible in the Routing Table: 1149
Prefixes from 32-bit ASNs in the Routing Table: 2665
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 145
Number of addresses announced to Internet: 2488212288
Equivalent to 148 /8s, 79 /16s and 27 /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: 150112
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89328
Total APNIC prefixes after maximum aggregation: 30123
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 85823
Unique aggregates announced from the APNIC address blocks: 36835
APNIC Region origin ASes present in the Internet Routing Table: 4482
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 619942432
Equivalent to 36 /8s, 243 /16s and 146 /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: 140961
Total ARIN prefixes after maximum aggregation: 71642
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112898
Unique aggregates announced from the ARIN address blocks: 46254
ARIN Region origin ASes present in the Internet Routing Table: 14431
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5503
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818734336
Equivalent to 48 /8s, 204 /16s and 229 /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: 85651
Total RIPE prefixes after maximum aggregation: 48759
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79090
Unique aggregates announced from the RIPE address blocks: 52405
RIPE Region origin ASes present in the Internet Routing Table: 15701
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7848
RIPE Region transit ASes present in the Internet Routing Table: 2467
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: 848
Number of RIPE addresses announced to Internet: 477397760
Equivalent to 28 /8s, 116 /16s and 131 /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: 33106
Total LACNIC prefixes after maximum aggregation: 7558
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32216
Unique aggregates announced from the LACNIC address blocks: 16994
LACNIC Region origin ASes present in the Internet Routing Table: 1468
LACNIC Prefixes per ASN: 21.95
LACNIC Region origin ASes announcing only one prefix: 436
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: 239
Number of LACNIC addresses announced to Internet: 84955136
Equivalent to 5 /8s, 16 /16s and 80 /24s
Percentage of available LACNIC address space announced: 56.3
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: 8047
Total AfriNIC prefixes after maximum aggregation: 1927
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6326
Unique aggregates announced from the AfriNIC address blocks: 1852
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 13.69
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: 4
Number of AfriNIC addresses announced to Internet: 24249856
Equivalent to 1 /8s, 114 /16s and 6 /24s
Percentage of available AfriNIC address space announced: 36.1
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 2457 9500 924 Korea Telecom (KIX)
17974 1557 440 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 85 TPG Internet Pty Ltd
4755 1475 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
4808 1044 2090 300 CNCGROUP IP network: China169
9829 1039 876 61 BSNL National Internet Backbo
17488 949 190 100 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 3630 3819 250 bellsouth.net, inc.
4323 1959 1081 397 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1796 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
20115 1525 1527 638 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1363 7054 892 AT&T WorldNet Services
22773 1342 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 524 107 182 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 464 2078 399 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 7 Uni2 Autonomous System
3320 425 8152 370 Deutsche Telekom AG
8551 406 355 45 Bezeq International
3301 397 1839 346 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 1514 278 157 TVCABLE BOGOTA
28573 1319 992 79 NET Servicos de Comunicao S.A
8151 1270 2729 364 UniNet S.A. de C.V.
7303 991 506 169 Telecom Argentina Stet-France
6503 740 354 73 AVANTEL, S.A.
14420 679 54 81 CORPORACION NACIONAL DE TELEC
22047 572 322 17 VTR PUNTO NET S.A.
3816 532 231 95 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 499 53 52 Telconet 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 759 445 11 TEDATA
15475 529 74 8 Nile Online
36992 306 415 16 Etisalat MISR
3741 265 937 226 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 154 441 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 3630 3819 250 bellsouth.net, inc.
23456 2665 652 1446 32-bit ASN transition
4766 2457 9500 924 Korea Telecom (KIX)
4323 1959 1081 397 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1796 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
17974 1557 440 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 85 TPG Internet Pty Ltd
20115 1525 1527 638 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 1796 1674 PaeTec Communications, Inc.
4323 1959 1562 Time Warner Telecom
4766 2457 1533 Korea Telecom (KIX)
17974 1557 1519 PT TELEKOMUNIKASI INDONESIA
7545 1537 1452 TPG Internet Pty Ltd
10620 1514 1357 TVCABLE BOGOTA
4755 1475 1307 TATA Communications formerly
22773 1342 1255 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 /11:81 /12:230
/13:462 /14:800 /15:1393 /16:11945 /17:5846 /18:9798
/19:19376 /20:25992 /21:26021 /22:34272 /23:33232 /24:187316
/25:1096 /26:1268 /27:730 /28:45 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2233 3630 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1404 1514 TVCABLE BOGOTA
23456 1319 2665 32-bit ASN transition
11492 1090 1136 Cable One
7011 1059 1159 Citizens Utilities
1785 1050 1796 PaeTec Communications, Inc.
7029 905 1155 Alltel Information Services,
4323 870 1959 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:285 2:45 4:16 5:1 6:3 8:335
12:1976 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1652 27:783 31:442 32:60
33:4 34:2 37:1 38:734 40:103 41:2478
42:2 44:3 46:968 47:3 49:187 50:410
52:13 54:2 55:5 56:2 57:32 58:851
59:475 60:387 61:1123 62:1052 63:1934 64:3939
65:2250 66:4117 67:1885 68:1086 69:3011 70:703
71:373 72:1844 74:2354 75:308 76:340 77:882
78:707 79:457 80:1107 81:846 82:491 83:461
84:666 85:1081 86:581 87:755 88:330 89:1530
90:204 91:3850 92:511 93:1046 94:1306 95:836
96:445 97:250 98:880 99:36 100:1 101:70
103:72 106:6 107:11 108:84 109:1005 110:605
111:712 112:301 113:398 114:536 115:666 116:966
117:676 118:794 119:1133 120:309 121:669 122:1628
123:949 124:1266 125:1224 128:247 129:175 130:165
131:576 132:110 133:19 134:211 135:48 136:214
137:138 138:301 139:112 140:479 141:238 142:404
143:416 144:494 145:54 146:447 147:214 148:607
149:247 150:172 151:187 152:331 153:180 154:4
155:399 156:195 157:353 158:137 159:381 160:318
161:209 162:307 163:165 164:499 165:352 166:530
167:423 168:740 169:157 170:839 171:77 172:1
173:1608 174:592 175:372 176:135 177:165 178:998
180:889 181:19 182:471 183:218 184:303 185:1
186:1217 187:772 188:842 189:919 190:4885 192:5857
193:4911 194:3493 195:3005 196:1242 197:32 198:3595
199:3940 200:5543 201:1484 202:8316 203:8423 204:4182
205:2339 206:2684 207:2812 208:3933 209:3465 210:2712
211:1420 212:2008 213:1723 214:749 215:68 216:4918
217:1654 218:548 219:363 220:1206 221:492 222:335
223:159
End of report
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