Routing Table Report 04:00 +10GMT Mon 15 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 367385
Prefixes after maximum aggregation: 166336
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182247
Total ASes present in the Internet Routing Table: 38452
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31914
Origin ASes announcing only one prefix: 15333
Transit ASes present in the Internet Routing Table: 5218
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1073
Unregistered ASNs in the Routing Table: 606
Number of 32-bit ASNs allocated by the RIRs: 1646
Number of 32-bit ASNs visible in the Routing Table: 1320
Prefixes from 32-bit ASNs in the Routing Table: 3057
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2492740608
Equivalent to 148 /8s, 148 /16s and 52 /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: 91.2
Total number of prefixes smaller than registry allocations: 153301
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92225
Total APNIC prefixes after maximum aggregation: 30445
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88731
Unique aggregates announced from the APNIC address blocks: 37727
APNIC Region origin ASes present in the Internet Routing Table: 4529
APNIC Prefixes per ASN: 19.59
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 708
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: 70
Number of APNIC addresses announced to Internet: 623728672
Equivalent to 37 /8s, 45 /16s and 88 /24s
Percentage of available APNIC address space announced: 79.1
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: 142153
Total ARIN prefixes after maximum aggregation: 73231
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114026
Unique aggregates announced from the ARIN address blocks: 47085
ARIN Region origin ASes present in the Internet Routing Table: 14555
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5583
ARIN Region transit ASes present in the Internet Routing Table: 1543
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803238400
Equivalent to 47 /8s, 224 /16s and 114 /24s
Percentage of available ARIN address space announced: 63.8
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: 87365
Total RIPE prefixes after maximum aggregation: 49650
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80601
Unique aggregates announced from the RIPE address blocks: 53304
RIPE Region origin ASes present in the Internet Routing Table: 15871
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7907
RIPE Region transit ASes present in the Internet Routing Table: 2506
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: 948
Number of RIPE addresses announced to Internet: 487075584
Equivalent to 29 /8s, 8 /16s and 47 /24s
Percentage of available RIPE address space announced: 78.5
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: 34046
Total LACNIC prefixes after maximum aggregation: 7620
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33238
Unique aggregates announced from the LACNIC address blocks: 17270
LACNIC Region origin ASes present in the Internet Routing Table: 1499
LACNIC Prefixes per ASN: 22.17
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 286
Number of LACNIC addresses announced to Internet: 87494720
Equivalent to 5 /8s, 55 /16s and 16 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8370
Total AfriNIC prefixes after maximum aggregation: 2024
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6518
Unique aggregates announced from the AfriNIC address blocks: 2030
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26908928
Equivalent to 1 /8s, 154 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 40.1
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 2493 11046 949 Korea Telecom (KIX)
17974 1888 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1569 301 85 TPG Internet Pty Ltd
4755 1534 635 170 TATA Communications formerly
7552 1408 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 BSNL National Internet Backbo
9583 1072 78 490 Sify Limited
4808 1065 2098 306 CNCGROUP IP network: China169
17488 997 187 131 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 3587 3817 228 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1816 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1591 1538 623 Charter Communications
7029 1574 991 228 Windstream Communications Inc
22773 1409 2903 93 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1362 7052 891 AT&T WorldNet Services
2386 1248 517 898 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 538 107 185 BILISIM TELEKOM
6830 510 1788 315 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
3320 425 8151 371 Deutsche Telekom AG
29049 417 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 397 1855 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 1574 290 165 TVCABLE BOGOTA
8151 1425 2755 354 UniNet S.A. de C.V.
28573 1265 996 67 NET Servicos de Comunicao S.A
7303 1066 578 174 Telecom Argentina Stet-France
6503 742 450 76 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 531 232 96 Empresa Nacional de Telecomun
7738 515 986 31 Telecomunicacoes da Bahia S.A
27947 515 53 53 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 807 147 43 LINKdotNET AS number
8452 681 445 11 TEDATA
15475 511 74 8 Nile Online
36992 308 417 15 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 193 28 64 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
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 3587 3817 228 bellsouth.net, inc.
23456 3057 731 1640 32-bit ASN transition
4766 2493 11046 949 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1888 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1816 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1591 1538 623 Charter Communications
7029 1574 991 228 Windstream Communications Inc
10620 1574 290 165 TVCABLE BOGOTA
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 1888 1857 PT TELEKOMUNIKASI INDONESIA
1785 1816 1692 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2493 1544 Korea Telecom (KIX)
7545 1569 1484 TPG Internet Pty Ltd
23456 3057 1417 32-bit ASN transition
10620 1574 1409 TVCABLE BOGOTA
7552 1408 1401 Vietel Corporation
4755 1534 1364 TATA Communications formerly
7029 1574 1346 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
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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:12 /10:27 /11:81 /12:233
/13:465 /14:800 /15:1411 /16:12034 /17:5907 /18:9908
/19:19532 /20:26524 /21:26537 /22:35405 /23:34173 /24:190980
/25:1094 /26:1298 /27:735 /28:200 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2218 3587 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1495 3057 32-bit ASN transition
10620 1469 1574 TVCABLE BOGOTA
7029 1275 1574 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1159 Citizens Utilities
1785 1051 1816 PaeTec Communications, Inc.
22773 905 1409 Cox Communications, Inc.
30036 898 920 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:354 2:45 4:15 5:1 6:3 8:340
12:1961 13:1 14:510 15:15 16:3 17:5
20:10 23:19 24:1686 27:875 31:512 32:64
33:4 34:2 36:4 38:732 40:107 41:2513
42:43 44:3 46:1070 47:3 49:219 50:395
52:13 54:2 55:4 56:2 57:35 58:868
59:497 60:379 61:1170 62:1065 63:1929 64:3993
65:2300 66:3919 67:1913 68:1110 69:3088 70:779
71:373 72:1846 74:2432 75:329 76:342 77:864
78:706 79:474 80:1128 81:827 82:489 83:465
84:686 85:1075 86:517 87:837 88:335 89:1532
90:224 91:4030 92:526 93:1119 94:1343 95:868
96:418 97:266 98:923 99:37 101:79 103:190
106:69 107:31 108:73 109:1018 110:623 111:728
112:310 113:404 114:558 115:693 116:991 117:682
118:869 119:1190 120:315 121:688 122:1589 123:985
124:1372 125:1340 128:242 129:174 130:172 131:565
132:114 133:21 134:213 135:52 136:216 137:139
138:295 139:116 140:479 141:272 142:382 143:419
144:484 145:58 146:460 147:215 148:694 149:252
150:161 151:190 152:440 153:182 154:5 155:399
156:199 157:331 158:137 159:456 160:318 161:207
162:310 163:163 164:515 165:367 166:535 167:431
168:748 169:153 170:843 171:81 172:1 173:1638
174:622 175:392 176:147 177:208 178:1000 180:924
181:26 182:519 183:241 184:365 185:1 186:1363
187:742 188:909 189:931 190:5104 192:5913 193:4970
194:3508 195:3054 196:1207 197:122 198:3573 199:4029
200:5508 201:1478 202:8411 203:8481 204:4258 205:2311
206:2669 207:2790 208:4003 209:3414 210:2699 211:1459
212:2082 213:1763 214:766 215:70 216:4880 217:1612
218:546 219:354 220:1215 221:513 222:360 223:236
End of report
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