Routing Table Report 04:00 +10GMT Fri 24 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 361544
Prefixes after maximum aggregation: 164244
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178733
Total ASes present in the Internet Routing Table: 37987
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31647
Origin ASes announcing only one prefix: 15216
Transit ASes present in the Internet Routing Table: 5161
Transit-only ASes present in the Internet Routing Table: 140
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: 841
Unregistered ASNs in the Routing Table: 455
Number of 32-bit ASNs allocated by the RIRs: 1481
Number of 32-bit ASNs visible in the Routing Table: 1179
Prefixes from 32-bit ASNs in the Routing Table: 2724
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 140
Number of addresses announced to Internet: 2492933184
Equivalent to 148 /8s, 151 /16s and 36 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150696
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90034
Total APNIC prefixes after maximum aggregation: 30207
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86515
Unique aggregates announced from the APNIC address blocks: 36186
APNIC Region origin ASes present in the Internet Routing Table: 4492
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 712
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: 52
Number of APNIC addresses announced to Internet: 622373664
Equivalent to 37 /8s, 24 /16s and 171 /24s
Percentage of available APNIC address space announced: 78.9
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: 141097
Total ARIN prefixes after maximum aggregation: 72555
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113000
Unique aggregates announced from the ARIN address blocks: 46538
ARIN Region origin ASes present in the Internet Routing Table: 14443
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5518
ARIN Region transit ASes present in the Internet Routing Table: 1516
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: 819191552
Equivalent to 48 /8s, 211 /16s and 223 /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: 86059
Total RIPE prefixes after maximum aggregation: 48946
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79462
Unique aggregates announced from the RIPE address blocks: 52642
RIPE Region origin ASes present in the Internet Routing Table: 15754
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7869
RIPE Region transit ASes present in the Internet Routing Table: 2492
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: 865
Number of RIPE addresses announced to Internet: 478255104
Equivalent to 28 /8s, 129 /16s and 152 /24s
Percentage of available RIPE address space announced: 77.0
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: 33270
Total LACNIC prefixes after maximum aggregation: 7565
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32320
Unique aggregates announced from the LACNIC address blocks: 16909
LACNIC Region origin ASes present in the Internet Routing Table: 1471
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 246
Number of LACNIC addresses announced to Internet: 85600000
Equivalent to 5 /8s, 26 /16s and 39 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8144
Total AfriNIC prefixes after maximum aggregation: 1948
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6441
Unique aggregates announced from the AfriNIC address blocks: 1956
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 14.03
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: 24247808
Equivalent to 1 /8s, 113 /16s and 254 /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 927 Korea Telecom (KIX)
17974 1851 460 45 PT TELEKOMUNIKASI INDONESIA
7545 1545 301 86 TPG Internet Pty Ltd
4755 1480 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
7552 1058 1061 10 Vietel Corporation
4808 1048 2090 300 CNCGROUP IP network: China169
9829 1016 872 73 BSNL National Internet Backbo
17488 957 183 104 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 3625 3819 248 bellsouth.net, inc.
18566 1912 365 240 Covad Communications
1785 1797 681 122 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
20115 1524 1527 634 Charter Communications
6478 1499 276 522 AT&T Worldnet Services
19262 1453 4811 373 Verizon Global Networks
7018 1361 7053 890 AT&T WorldNet Services
22773 1342 2897 87 Cox Communications, Inc.
7029 1310 790 298 Alltel Information Services,
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 529 107 182 BILISIM TELEKOM
6830 516 1780 321 UPC Distribution Services
3292 469 2080 404 TDC Tele Danmark
20940 466 136 358 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 48 AzerSat LLC.
12479 437 593 7 Uni2 Autonomous System
3320 421 8151 368 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 396 1839 345 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 1529 281 157 TVCABLE BOGOTA
8151 1420 2736 358 UniNet S.A. de C.V.
28573 1263 993 78 NET Servicos de Comunicao S.A
7303 992 507 169 Telecom Argentina Stet-France
6503 742 354 74 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 531 231 95 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 500 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 798 147 37 LINKdotNET AS number
8452 792 445 11 TEDATA
15475 525 74 8 Nile Online
36992 310 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
33776 208 12 10 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 148 440 85 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 3625 3819 248 bellsouth.net, inc.
23456 2724 670 1465 32-bit ASN transition
4766 2457 9500 927 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications
17974 1851 460 45 PT TELEKOMUNIKASI INDONESIA
1785 1797 681 122 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
7545 1545 301 86 TPG Internet Pty Ltd
10620 1529 281 157 TVCABLE BOGOTA
20115 1524 1527 634 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
17974 1851 1806 PT TELEKOMUNIKASI INDONESIA
1785 1797 1675 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2457 1530 Korea Telecom (KIX)
7545 1545 1459 TPG Internet Pty Ltd
10620 1529 1372 TVCABLE BOGOTA
4755 1480 1312 TATA Communications formerly
4323 1661 1263 Time Warner Telecom
23456 2724 1259 32-bit ASN transition
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:461 /14:800 /15:1394 /16:11970 /17:5853 /18:9773
/19:19356 /20:25970 /21:26078 /22:34491 /23:33476 /24:188230
/25:1091 /26:1267 /27:729 /28:213 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 3625 bellsouth.net, inc.
18566 1869 1912 Covad Communications
6478 1466 1499 AT&T Worldnet Services
10620 1424 1529 TVCABLE BOGOTA
23456 1348 2724 32-bit ASN transition
11492 1090 1136 Cable One
7011 1060 1161 Citizens Utilities
7029 1055 1310 Alltel Information Services,
1785 1050 1797 PaeTec Communications, Inc.
22773 857 1342 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:298 2:46 4:16 5:1 6:3 8:336
12:1979 13:1 14:468 15:15 16:3 17:8
20:10 23:11 24:1654 27:805 31:479 32:64
33:4 34:2 37:1 38:738 39:3 40:103
41:2521 42:2 44:3 46:988 47:3 49:197
50:415 52:13 54:2 55:3 56:2 57:32
58:838 59:473 60:386 61:1180 62:1052 63:1936
64:3932 65:2286 66:3881 67:1901 68:1090 69:3013
70:753 71:376 72:1872 74:2378 75:318 76:340
77:885 78:708 79:463 80:1108 81:841 82:494
83:454 84:666 85:1079 86:553 87:759 88:333
89:1525 90:209 91:3871 92:534 93:1048 94:1307
95:841 96:445 97:249 98:880 99:36 101:75
103:89 106:10 107:15 108:70 109:1006 110:607
111:707 112:303 113:407 114:542 115:665 116:968
117:674 118:852 119:1146 120:311 121:669 122:1634
123:959 124:1303 125:1240 128:247 129:172 130:168
131:577 132:112 133:21 134:214 135:48 136:215
137:138 138:300 139:114 140:486 141:238 142:403
143:422 144:487 145:54 146:450 147:215 148:663
149:247 150:170 151:190 152:332 153:180 154:4
155:391 156:195 157:352 158:138 159:452 160:315
161:209 162:310 163:162 164:506 165:353 166:533
167:433 168:740 169:158 170:843 171:77 172:1
173:1629 174:606 175:373 176:137 177:149 178:1008
180:895 181:19 182:484 183:222 184:307 185:1
186:1235 187:736 188:874 189:912 190:4888 192:5887
193:4966 194:3486 195:3036 196:1219 197:41 198:3596
199:3952 200:5533 201:1504 202:8363 203:8432 204:4196
205:2342 206:2680 207:2808 208:3933 209:3458 210:2730
211:1459 212:2098 213:1735 214:771 215:69 216:4886
217:1636 218:548 219:362 220:1208 221:491 222:360
223:161
End of report
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