Routing Table Report 04:00 +10GMT Wed 14 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 371760
Prefixes after maximum aggregation: 167812
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184545
Total ASes present in the Internet Routing Table: 38772
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 32167
Origin ASes announcing only one prefix: 15466
Transit ASes present in the Internet Routing Table: 5203
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1228
Unregistered ASNs in the Routing Table: 709
Number of 32-bit ASNs allocated by the RIRs: 1721
Number of 32-bit ASNs visible in the Routing Table: 1402
Prefixes from 32-bit ASNs in the Routing Table: 3224
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2476526336
Equivalent to 147 /8s, 156 /16s and 203 /24s
Percentage of available address space announced: 66.8
Percentage of allocated address space announced: 66.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154529
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94136
Total APNIC prefixes after maximum aggregation: 30701
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 90649
Unique aggregates announced from the APNIC address blocks: 38137
APNIC Region origin ASes present in the Internet Routing Table: 4561
APNIC Prefixes per ASN: 19.87
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 711
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 85
Number of APNIC addresses announced to Internet: 626418016
Equivalent to 37 /8s, 86 /16s and 97 /24s
Percentage of available APNIC address space announced: 79.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 143346
Total ARIN prefixes after maximum aggregation: 73751
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115164
Unique aggregates announced from the ARIN address blocks: 47917
ARIN Region origin ASes present in the Internet Routing Table: 14650
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5644
ARIN Region transit ASes present in the Internet Routing Table: 1554
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804794752
Equivalent to 47 /8s, 248 /16s and 49 /24s
Percentage of available ARIN address space announced: 64.0
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: 87986
Total RIPE prefixes after maximum aggregation: 50020
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81053
Unique aggregates announced from the RIPE address blocks: 53840
RIPE Region origin ASes present in the Internet Routing Table: 15971
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7967
RIPE Region transit ASes present in the Internet Routing Table: 2494
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: 996
Number of RIPE addresses announced to Internet: 488733696
Equivalent to 29 /8s, 33 /16s and 124 /24s
Percentage of available RIPE address space announced: 78.7
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, 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: 34499
Total LACNIC prefixes after maximum aggregation: 7757
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33806
Unique aggregates announced from the LACNIC address blocks: 17764
LACNIC Region origin ASes present in the Internet Routing Table: 1520
LACNIC Prefixes per ASN: 22.24
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 273
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: 305
Number of LACNIC addresses announced to Internet: 88936576
Equivalent to 5 /8s, 77 /16s and 16 /24s
Percentage of available LACNIC address space announced: 58.9
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: 8398
Total AfriNIC prefixes after maximum aggregation: 2015
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6499
Unique aggregates announced from the AfriNIC address blocks: 2004
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.51
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27295488
Equivalent to 1 /8s, 160 /16s and 127 /24s
Percentage of available AfriNIC address space announced: 40.7
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 2508 11047 955 Korea Telecom (KIX)
17974 1990 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1587 301 82 TPG Internet Pty Ltd
4755 1546 639 170 TATA Communications formerly
7552 1415 1064 7 Vietel Corporation
24560 1181 337 193 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
4808 1077 2093 308 CNCGROUP IP network: China169
9583 1077 80 505 Sify Limited
17488 956 189 164 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 3564 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
4323 1625 1085 393 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1588 995 231 Windstream Communications Inc
22773 1453 2906 99 Cox Communications, Inc.
30036 1423 264 685 Mediacom Communications Corp
19262 1395 4724 399 Verizon Global Networks
7018 1336 7050 874 AT&T WorldNet 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 556 107 178 BILISIM TELEKOM
6830 526 1811 322 UPC Distribution Services
20940 501 155 389 Akamai Technologies European
12479 473 594 8 Uni2 Autonomous System
3292 470 2079 403 TDC Tele Danmark
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
8402 427 352 13 Corbina telecom
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
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 1661 305 161 TVCABLE BOGOTA
8151 1409 2802 355 UniNet S.A. de C.V.
28573 1318 1003 69 NET Servicos de Comunicao S.A
7303 1153 677 170 Telecom Argentina Stet-France
14420 713 56 93 CORPORACION NACIONAL DE TELEC
6503 583 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
3816 535 232 98 Empresa Nacional de Telecomun
11172 516 85 91 Servicios Alestra S.A de C.V
7738 515 986 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 812 147 43 LINKdotNET AS number
8452 702 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 236 13 8 Starcomms Nigeria Limited
15706 195 32 6 Sudatel Internet Exchange Aut
12258 193 28 62 Vodacom Internet Company
29571 191 17 11 Ci Telecom Autonomous system
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 3564 3817 226 bellsouth.net, inc.
23456 3224 765 1741 32-bit ASN transition
4766 2508 11047 955 Korea Telecom (KIX)
17974 1990 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1661 305 161 TVCABLE BOGOTA
4323 1625 1085 393 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1588 995 231 Windstream Communications Inc
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 1990 1959 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2508 1553 Korea Telecom (KIX)
7545 1587 1505 TPG Internet Pty Ltd
10620 1661 1500 TVCABLE BOGOTA
23456 3224 1483 32-bit ASN transition
7552 1415 1408 Vietel Corporation
4755 1546 1376 TATA Communications formerly
7029 1588 1357 Windstream 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
23.18.0.0/16 25877 Open Mobile
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
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 /9:12 /10:27 /11:81 /12:234
/13:463 /14:801 /15:1419 /16:11995 /17:5971 /18:10013
/19:19730 /20:26955 /21:27078 /22:36314 /23:34690 /24:192662
/25:1097 /26:1283 /27:742 /28:165 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2201 3564 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1561 3224 32-bit ASN transition
10620 1556 1661 TVCABLE BOGOTA
30036 1381 1423 Mediacom Communications Corp
7029 1288 1588 Windstream Communications Inc
11492 1104 1142 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 943 1453 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:371 2:54 4:15 5:1 6:3 8:351
12:1950 13:1 14:539 15:13 16:3 17:5
20:10 23:32 24:1674 27:944 31:523 32:64
33:3 34:2 36:4 38:738 40:107 41:2511
42:45 44:3 46:976 47:3 49:239 50:416
52:13 54:2 55:7 56:2 57:34 58:868
59:494 60:376 61:1175 62:1086 63:1942 64:4033
65:2303 66:3925 67:1952 68:1102 69:3169 70:782
71:377 72:1857 74:2429 75:328 76:339 77:838
78:667 79:472 80:1124 81:842 82:507 83:492
84:686 85:1089 86:406 87:858 88:346 89:1545
90:234 91:4080 92:525 93:1116 94:1340 95:798
96:425 97:271 98:930 99:37 101:205 103:288
106:71 107:44 108:76 109:1014 110:667 111:744
112:321 113:439 114:565 115:697 116:919 117:699
118:889 119:1194 120:339 121:686 122:1609 123:1012
124:1347 125:1400 128:252 129:179 130:164 131:583
132:119 133:21 134:215 135:52 136:212 137:138
138:294 139:98 140:493 141:289 142:389 143:416
144:490 145:61 146:466 147:215 148:637 149:251
150:152 151:190 152:447 153:179 154:6 155:392
156:202 157:354 158:143 159:460 160:324 161:206
162:335 163:173 164:513 165:371 166:536 167:432
168:749 169:148 170:849 171:84 172:1 173:1635
174:627 175:392 176:176 177:249 178:995 180:1059
181:27 182:610 183:236 184:362 185:1 186:1358
187:663 188:937 189:868 190:5130 192:5928 193:5002
194:3524 195:3061 196:1239 197:147 198:3624 199:4111
200:5498 201:1624 202:8543 203:8545 204:4252 205:2325
206:2676 207:2832 208:4033 209:3461 210:2688 211:1518
212:2083 213:1768 214:775 215:76 216:4848 217:1599
218:550 219:330 220:1225 221:514 222:343 223:267
End of report
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