Routing Table Report 04:00 +10GMT Mon 12 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370993
Prefixes after maximum aggregation: 167510
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183652
Total ASes present in the Internet Routing Table: 38742
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 32139
Origin ASes announcing only one prefix: 15458
Transit ASes present in the Internet Routing Table: 5205
Transit-only ASes present in the Internet Routing Table: 136
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: 1207
Unregistered ASNs in the Routing Table: 700
Number of 32-bit ASNs allocated by the RIRs: 1720
Number of 32-bit ASNs visible in the Routing Table: 1398
Prefixes from 32-bit ASNs in the Routing Table: 3214
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2475361024
Equivalent to 147 /8s, 139 /16s and 3 /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: 154431
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93741
Total APNIC prefixes after maximum aggregation: 30673
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90278
Unique aggregates announced from the APNIC address blocks: 38099
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.82
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: 84
Number of APNIC addresses announced to Internet: 626097248
Equivalent to 37 /8s, 81 /16s and 124 /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: 143135
Total ARIN prefixes after maximum aggregation: 73491
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114955
Unique aggregates announced from the ARIN address blocks: 47149
ARIN Region origin ASes present in the Internet Routing Table: 14644
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5640
ARIN Region transit ASes present in the Internet Routing Table: 1552
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: 804798336
Equivalent to 47 /8s, 248 /16s and 63 /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: 87951
Total RIPE prefixes after maximum aggregation: 50017
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81025
Unique aggregates announced from the RIPE address blocks: 53840
RIPE Region origin ASes present in the Internet Routing Table: 15960
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7959
RIPE Region transit ASes present in the Internet Routing Table: 2497
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: 995
Number of RIPE addresses announced to Internet: 488783872
Equivalent to 29 /8s, 34 /16s and 64 /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: 34445
Total LACNIC prefixes after maximum aggregation: 7754
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33760
Unique aggregates announced from the LACNIC address blocks: 17686
LACNIC Region origin ASes present in the Internet Routing Table: 1523
LACNIC Prefixes per ASN: 22.17
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 303
Number of LACNIC addresses announced to Internet: 88391040
Equivalent to 5 /8s, 68 /16s and 189 /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: 8343
Total AfriNIC prefixes after maximum aggregation: 2011
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6469
Unique aggregates announced from the AfriNIC address blocks: 2016
AfriNIC Region origin ASes present in the Internet Routing Table: 478
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 27217408
Equivalent to 1 /8s, 159 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 40.6
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 1981 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1581 301 83 TPG Internet Pty Ltd
4755 1546 639 170 TATA Communications formerly
7552 1415 1064 7 Vietel Corporation
24560 1178 336 193 Bharti Airtel Ltd., Telemedia
9829 1149 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 1821 680 122 PaeTec Communications, Inc.
4323 1624 1085 395 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1588 995 231 Windstream Communications Inc
22773 1451 2906 99 Cox Communications, Inc.
19262 1395 4724 399 Verizon Global Networks
7018 1335 7050 874 AT&T WorldNet Services
30036 1328 244 688 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 526 1811 322 UPC Distribution Services
20940 500 154 388 Akamai Technologies European
3292 472 2080 403 TDC Tele Danmark
12479 468 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 415 352 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 1661 305 161 TVCABLE BOGOTA
8151 1397 2784 353 UniNet S.A. de C.V.
28573 1308 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 581 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 565 55 82 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 516 85 91 Servicios Alestra S.A de C.V
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 787 147 43 LINKdotNET AS number
8452 679 445 11 TEDATA
15475 511 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 204 13 14 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 3214 764 1739 32-bit ASN transition
4766 2508 11047 955 Korea Telecom (KIX)
17974 1981 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1821 680 122 PaeTec Communications, Inc.
10620 1661 305 161 TVCABLE BOGOTA
4323 1624 1085 395 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 1981 1950 PT TELEKOMUNIKASI INDONESIA
1785 1821 1699 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2508 1553 Korea Telecom (KIX)
10620 1661 1500 TVCABLE BOGOTA
7545 1581 1498 TPG Internet Pty Ltd
23456 3214 1475 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
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
/13:463 /14:798 /15:1414 /16:11958 /17:5958 /18:10000
/19:19710 /20:26850 /21:26961 /22:36136 /23:34683 /24:192395
/25:1099 /26:1280 /27:742 /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 1561 3214 32-bit ASN transition
10620 1556 1661 TVCABLE BOGOTA
30036 1291 1328 Mediacom Communications Corp
7029 1288 1588 Windstream Communications Inc
11492 1111 1157 Cable One
7011 1058 1183 Citizens Utilities
1785 1051 1821 PaeTec Communications, Inc.
22773 941 1451 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 2:49 4:15 5:1 6:3 8:349
12:1951 13:1 14:529 15:13 16:3 17:5
20:10 23:32 24:1669 27:941 31:516 32:64
33:3 34:2 36:4 38:737 40:107 41:2498
42:42 44:3 46:979 47:3 49:238 50:413
52:13 54:2 55:6 56:2 57:34 58:868
59:494 60:376 61:1171 62:1085 63:1940 64:4030
65:2302 66:3928 67:1945 68:1101 69:3167 70:728
71:377 72:1857 74:2427 75:328 76:339 77:869
78:667 79:472 80:1125 81:841 82:502 83:491
84:685 85:1089 86:412 87:862 88:346 89:1540
90:232 91:4077 92:523 93:1129 94:1338 95:801
96:422 97:271 98:928 99:37 100:1 101:205
103:282 106:71 107:42 108:76 109:1015 110:661
111:746 112:319 113:439 114:563 115:719 116:918
117:699 118:882 119:1194 120:335 121:685 122:1607
123:1008 124:1347 125:1402 128:248 129:181 130:166
131:581 132:119 133:21 134:215 135:52 136:206
137:138 138:294 139:116 140:493 141:289 142:389
143:412 144:493 145:61 146:465 147:215 148:632
149:250 150:153 151:189 152:444 153:179 154:6
155:393 156:201 157:354 158:143 159:458 160:328
161:207 162:333 163:173 164:513 165:371 166:536
167:431 168:747 169:145 170:849 171:84 172:1
173:1645 174:596 175:391 176:173 177:246 178:1003
180:1024 181:24 182:607 183:234 184:351 185:1
186:1418 187:674 188:939 189:867 190:5150 192:5923
193:5000 194:3521 195:3046 196:1235 197:146 198:3587
199:4105 200:5521 201:1631 202:8510 203:8519 204:4246
205:2323 206:2677 207:2826 208:4023 209:3461 210:2683
211:1462 212:2090 213:1762 214:772 215:76 216:4844
217:1595 218:550 219:346 220:1225 221:515 222:352
223:260
End of report
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