Routing Table Report 04:00 +10GMT Thu 15 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 371108
Prefixes after maximum aggregation: 167875
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 184611
Total ASes present in the Internet Routing Table: 38779
Prefixes per ASN: 9.57
Origin-only ASes present in the Internet Routing Table: 32168
Origin ASes announcing only one prefix: 15473
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: 1243
Unregistered ASNs in the Routing Table: 716
Number of 32-bit ASNs allocated by the RIRs: 1724
Number of 32-bit ASNs visible in the Routing Table: 1406
Prefixes from 32-bit ASNs in the Routing Table: 3236
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 102
Number of addresses announced to Internet: 2477156864
Equivalent to 147 /8s, 166 /16s and 106 /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: 91.3
Total number of prefixes smaller than registry allocations: 154612
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93357
Total APNIC prefixes after maximum aggregation: 30715
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89901
Unique aggregates announced from the APNIC address blocks: 38177
APNIC Region origin ASes present in the Internet Routing Table: 4565
APNIC Prefixes per ASN: 19.69
APNIC Region origin ASes announcing only one prefix: 1255
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: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 87
Number of APNIC addresses announced to Internet: 627139168
Equivalent to 37 /8s, 97 /16s and 98 /24s
Percentage of available APNIC address space announced: 79.5
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: 143336
Total ARIN prefixes after maximum aggregation: 73753
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115186
Unique aggregates announced from the ARIN address blocks: 47941
ARIN Region origin ASes present in the Internet Routing Table: 14658
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1556
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: 804843648
Equivalent to 47 /8s, 248 /16s and 240 /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: 87982
Total RIPE prefixes after maximum aggregation: 50051
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81067
Unique aggregates announced from the RIPE address blocks: 53809
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: 2498
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: 1000
Number of RIPE addresses announced to Internet: 488769024
Equivalent to 29 /8s, 34 /16s and 6 /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: 34608
Total LACNIC prefixes after maximum aggregation: 7760
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33902
Unique aggregates announced from the LACNIC address blocks: 17788
LACNIC Region origin ASes present in the Internet Routing Table: 1521
LACNIC Prefixes per ASN: 22.29
LACNIC Region origin ASes announcing only one prefix: 450
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: 303
Number of LACNIC addresses announced to Internet: 88903296
Equivalent to 5 /8s, 76 /16s and 142 /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: 8416
Total AfriNIC prefixes after maximum aggregation: 2017
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6520
Unique aggregates announced from the AfriNIC address blocks: 2012
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: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 27255552
Equivalent to 1 /8s, 159 /16s and 227 /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 2006 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1587 301 82 TPG Internet Pty Ltd
4755 1547 639 170 TATA Communications formerly
24560 1180 337 193 Bharti Airtel Ltd., Telemedia
9829 1155 989 28 BSNL National Internet Backbo
9583 1077 80 505 Sify Limited
4808 1070 2089 303 CNCGROUP IP network: China169
7552 977 1062 11 Vietel Corporation
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 1626 1085 393 Time Warner Telecom
20115 1593 1541 632 Charter Communications
7029 1587 995 230 Windstream Communications Inc
22773 1454 2906 99 Cox Communications, Inc.
30036 1426 264 687 Mediacom Communications Corp
19262 1395 4724 399 Verizon Global Networks
7018 1335 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 557 108 179 BILISIM TELEKOM
6830 526 1811 322 UPC Distribution Services
20940 504 158 392 Akamai Technologies European
12479 473 594 8 Uni2 Autonomous System
3292 471 2079 403 TDC Tele Danmark
8866 460 133 26 Bulgarian Telecommunication C
3320 429 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 418 352 13 Corbina telecom
8551 403 354 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 718 57 92 CORPORACION NACIONAL DE TELEC
6503 583 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 566 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 812 147 43 LINKdotNET AS number
8452 702 445 11 TEDATA
15475 513 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 3236 765 1746 32-bit ASN transition
4766 2508 11047 955 Korea Telecom (KIX)
17974 2006 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 1626 1085 393 Time Warner Telecom
20115 1593 1541 632 Charter Communications
7029 1587 995 230 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 2006 1975 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 3236 1490 32-bit ASN transition
4755 1547 1377 TATA Communications formerly
7029 1587 1357 Windstream Communications Inc
22773 1454 1355 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
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
/13:464 /14:799 /15:1411 /16:11960 /17:5964 /18:10008
/19:19723 /20:26834 /21:26940 /22:36120 /23:34667 /24:192555
/25:1097 /26:1280 /27:742 /28:162 /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 1570 3236 32-bit ASN transition
10620 1556 1661 TVCABLE BOGOTA
30036 1384 1426 Mediacom Communications Corp
7029 1288 1587 Windstream Communications Inc
11492 1104 1142 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 944 1454 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 2:51 4:15 5:1 6:3 8:351
12:1952 13:1 14:540 15:13 16:3 17:5
20:10 23:32 24:1675 27:939 31:529 32:64
33:3 34:2 36:4 38:739 40:107 41:2500
42:46 44:3 46:975 47:3 49:239 50:419
52:13 54:2 55:6 56:2 57:34 58:875
59:495 60:376 61:1175 62:1089 63:1941 64:4035
65:2302 66:3926 67:1952 68:1102 69:3170 70:782
71:377 72:1859 74:2431 75:322 76:342 77:869
78:666 79:470 80:1118 81:839 82:502 83:492
84:688 85:1089 86:409 87:862 88:346 89:1532
90:234 91:4073 92:525 93:1133 94:1331 95:787
96:423 97:272 98:930 99:37 101:203 103:291
106:71 107:44 108:76 109:1013 110:668 111:750
112:313 113:438 114:563 115:688 116:920 117:679
118:888 119:1198 120:339 121:686 122:1603 123:1013
124:1354 125:1357 128:248 129:179 130:166 131:584
132:119 133:21 134:215 135:52 136:212 137:137
138:294 139:100 140:493 141:289 142:389 143:413
144:480 145:61 146:466 147:215 148:637 149:251
150:153 151:190 152:447 153:179 154:6 155:389
156:202 157:354 158:143 159:460 160:324 161:207
162:335 163:174 164:513 165:371 166:536 167:435
168:747 169:146 170:857 171:84 172:1 173:1631
174:627 175:392 176:174 177:244 178:1000 180:1066
181:27 182:612 183:238 184:362 185:1 186:1420
187:666 188:924 189:867 190:5160 192:5926 193:4997
194:3518 195:3063 196:1246 197:148 198:3592 199:4102
200:5514 201:1637 202:8543 203:8502 204:4254 205:2330
206:2675 207:2831 208:4034 209:3462 210:2683 211:1466
212:2085 213:1768 214:784 215:76 216:4848 217:1597
218:550 219:331 220:1198 221:515 222:344 223:266
End of report
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