Routing Table Report 04:00 +10GMT Fri 09 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370800
Prefixes after maximum aggregation: 167354
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 183702
Total ASes present in the Internet Routing Table: 38724
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 32117
Origin ASes announcing only one prefix: 15440
Transit ASes present in the Internet Routing Table: 5210
Transit-only ASes present in the Internet Routing Table: 138
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: 1202
Unregistered ASNs in the Routing Table: 691
Number of 32-bit ASNs allocated by the RIRs: 1708
Number of 32-bit ASNs visible in the Routing Table: 1397
Prefixes from 32-bit ASNs in the Routing Table: 3230
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2474531200
Equivalent to 147 /8s, 126 /16s and 89 /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: 154338
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93694
Total APNIC prefixes after maximum aggregation: 30653
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90236
Unique aggregates announced from the APNIC address blocks: 38067
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.81
APNIC Region origin ASes announcing only one prefix: 1252
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: 82
Number of APNIC addresses announced to Internet: 626061408
Equivalent to 37 /8s, 80 /16s and 240 /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: 143133
Total ARIN prefixes after maximum aggregation: 73422
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114979
Unique aggregates announced from the ARIN address blocks: 47309
ARIN Region origin ASes present in the Internet Routing Table: 14649
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5648
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: 804779264
Equivalent to 47 /8s, 247 /16s and 245 /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: 87796
Total RIPE prefixes after maximum aggregation: 49963
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80883
Unique aggregates announced from the RIPE address blocks: 53774
RIPE Region origin ASes present in the Internet Routing Table: 15936
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7939
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: 993
Number of RIPE addresses announced to Internet: 488580352
Equivalent to 29 /8s, 31 /16s and 37 /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: 34447
Total LACNIC prefixes after maximum aggregation: 7732
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33762
Unique aggregates announced from the LACNIC address blocks: 17636
LACNIC Region origin ASes present in the Internet Routing Table: 1519
LACNIC Prefixes per ASN: 22.23
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 275
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: 306
Number of LACNIC addresses announced to Internet: 88307328
Equivalent to 5 /8s, 67 /16s and 118 /24s
Percentage of available LACNIC address space announced: 58.5
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: 8336
Total AfriNIC prefixes after maximum aggregation: 2022
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6438
Unique aggregates announced from the AfriNIC address blocks: 2018
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 27336448
Equivalent to 1 /8s, 161 /16s and 31 /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 2507 11047 954 Korea Telecom (KIX)
17974 1979 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1581 301 83 TPG Internet Pty Ltd
4755 1548 635 170 TATA Communications formerly
7552 1397 1064 7 Vietel Corporation
24560 1177 336 193 Bharti Airtel Ltd., Telemedia
9829 1152 989 28 BSNL National Internet Backbo
9583 1079 80 503 Sify Limited
4808 1077 2093 308 CNCGROUP IP network: China169
17488 982 192 158 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 1823 680 122 PaeTec Communications, Inc.
4323 1625 1085 395 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1587 995 231 Windstream Communications Inc
22773 1449 2906 99 Cox Communications, Inc.
19262 1394 4724 399 Verizon Global Networks
7018 1331 7050 873 AT&T WorldNet Services
30036 1323 243 687 Mediacom Communications Corp
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 544 107 178 BILISIM TELEKOM
6830 525 1811 321 UPC Distribution Services
20940 499 153 388 Akamai Technologies European
3292 471 2079 405 TDC Tele Danmark
12479 468 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 409 352 13 Corbina telecom
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 1643 301 156 TVCABLE BOGOTA
8151 1406 2799 353 UniNet S.A. de C.V.
28573 1302 1003 71 NET Servicos de Comunicao S.A
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 583 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 564 55 82 Telconet S.A
3816 534 232 97 Empresa Nacional de Telecomun
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 645 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 207 13 14 Starcomms Nigeria Limited
15706 195 32 6 Sudatel Internet Exchange Aut
12258 193 28 62 Vodacom Internet Company
24835 189 70 11 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 3564 3817 226 bellsouth.net, inc.
23456 3230 763 1738 32-bit ASN transition
4766 2507 11047 954 Korea Telecom (KIX)
17974 1979 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1823 680 122 PaeTec Communications, Inc.
10620 1643 301 156 TVCABLE BOGOTA
4323 1625 1085 395 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1587 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 1979 1948 PT TELEKOMUNIKASI INDONESIA
1785 1823 1701 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2507 1553 Korea Telecom (KIX)
7545 1581 1498 TPG Internet Pty Ltd
23456 3230 1492 32-bit ASN transition
10620 1643 1487 TVCABLE BOGOTA
7552 1397 1390 Vietel Corporation
4755 1548 1378 TATA Communications formerly
7029 1587 1356 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /8:19 /9:12 /10:27 /11:81 /12:234
/13:462 /14:798 /15:1414 /16:11959 /17:5946 /18:9987
/19:19688 /20:26829 /21:26915 /22:36119 /23:34670 /24:192332
/25:1107 /26:1296 /27:732 /28:164 /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 1567 3230 32-bit ASN transition
10620 1538 1643 TVCABLE BOGOTA
7029 1287 1587 Windstream Communications Inc
30036 1286 1323 Mediacom Communications Corp
11492 1108 1154 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1823 PaeTec Communications, Inc.
22773 939 1449 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:369 2:50 4:15 5:1 6:3 8:346
12:1952 13:1 14:531 15:13 16:3 17:5
20:10 23:31 24:1669 27:939 31:515 32:64
33:3 34:2 36:4 38:737 40:107 41:2419
42:40 44:3 46:973 47:3 49:235 50:408
52:13 54:2 55:4 56:2 57:34 58:868
59:495 60:376 61:1172 62:1081 63:1940 64:4026
65:2305 66:3939 67:1943 68:1116 69:3167 70:781
71:377 72:1853 74:2433 75:328 76:339 77:869
78:667 79:455 80:1124 81:841 82:494 83:493
84:685 85:1092 86:412 87:860 88:345 89:1539
90:232 91:4062 92:525 93:1127 94:1353 95:800
96:422 97:272 98:923 99:37 101:202 103:270
106:71 107:43 108:76 109:1016 110:666 111:748
112:318 113:439 114:567 115:715 116:915 117:701
118:883 119:1201 120:336 121:691 122:1608 123:1007
124:1348 125:1402 128:248 129:178 130:166 131:580
132:119 133:21 134:215 135:52 136:212 137:134
138:293 139:116 140:490 141:289 142:389 143:425
144:493 145:61 146:466 147:237 148:636 149:250
150:153 151:189 152:443 153:179 154:6 155:394
156:201 157:353 158:145 159:458 160:319 161:206
162:336 163:174 164:513 165:368 166:536 167:434
168:748 169:146 170:853 171:84 172:1 173:1656
174:587 175:390 176:161 177:258 178:990 180:1016
181:26 182:607 183:232 184:352 185:1 186:1418
187:681 188:939 189:872 190:5143 192:5915 193:5001
194:3518 195:3042 196:1238 197:147 198:3587 199:4099
200:5509 201:1627 202:8510 203:8482 204:4253 205:2333
206:2678 207:2829 208:4026 209:3433 210:2691 211:1464
212:2080 213:1764 214:775 215:76 216:4860 217:1613
218:550 219:345 220:1225 221:515 222:352 223:260
End of report
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