Routing Table Report 04:00 +10GMT Fri 07 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 375984
Prefixes after maximum aggregation: 168867
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185406
Total ASes present in the Internet Routing Table: 38975
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 32276
Origin ASes announcing only one prefix: 15482
Transit ASes present in the Internet Routing Table: 5220
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1635
Unregistered ASNs in the Routing Table: 840
Number of 32-bit ASNs allocated by the RIRs: 1825
Number of 32-bit ASNs visible in the Routing Table: 1479
Prefixes from 32-bit ASNs in the Routing Table: 3384
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2482464896
Equivalent to 147 /8s, 247 /16s and 104 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 157514
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94379
Total APNIC prefixes after maximum aggregation: 30807
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90840
Unique aggregates announced from the APNIC address blocks: 37979
APNIC Region origin ASes present in the Internet Routing Table: 4571
APNIC Prefixes per ASN: 19.87
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 90
Number of APNIC addresses announced to Internet: 628427104
Equivalent to 37 /8s, 117 /16s and 9 /24s
Percentage of available APNIC address space announced: 79.7
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: 144163
Total ARIN prefixes after maximum aggregation: 74024
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116321
Unique aggregates announced from the ARIN address blocks: 48004
ARIN Region origin ASes present in the Internet Routing Table: 14710
ARIN Prefixes per ASN: 7.91
ARIN Region origin ASes announcing only one prefix: 5667
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: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804671232
Equivalent to 47 /8s, 246 /16s and 79 /24s
Percentage of available ARIN address space announced: 63.9
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: 90217
Total RIPE prefixes after maximum aggregation: 50488
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82890
Unique aggregates announced from the RIPE address blocks: 54193
RIPE Region origin ASes present in the Internet Routing Table: 16015
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7958
RIPE Region transit ASes present in the Internet Routing Table: 2509
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1044
Number of RIPE addresses announced to Internet: 490479232
Equivalent to 29 /8s, 60 /16s and 30 /24s
Percentage of available RIPE address space announced: 79.0
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: 35122
Total LACNIC prefixes after maximum aggregation: 7803
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 34462
Unique aggregates announced from the LACNIC address blocks: 18090
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.52
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 280
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: 329
Number of LACNIC addresses announced to Internet: 89993728
Equivalent to 5 /8s, 93 /16s and 50 /24s
Percentage of available LACNIC address space announced: 59.6
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: 8549
Total AfriNIC prefixes after maximum aggregation: 2001
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6641
Unique aggregates announced from the AfriNIC address blocks: 1980
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 154
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: 27799296
Equivalent to 1 /8s, 168 /16s and 47 /24s
Percentage of available AfriNIC address space announced: 41.4
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 2492 11047 956 Korea Telecom (KIX)
17974 1960 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1608 303 85 TPG Internet Pty Ltd
4755 1542 638 175 TATA Communications formerly
7552 1393 1064 7 Vietel Corporation
24560 1180 345 206 Bharti Airtel Ltd., Telemedia
9829 1165 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1074 2096 303 CNCGROUP IP network: China169
18101 951 165 142 Reliance Infocom Ltd Internet
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 3555 3817 225 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
7029 1862 1008 195 Windstream Communications Inc
1785 1829 680 121 PaeTec Communications, Inc.
4323 1627 1083 392 Time Warner Telecom
20115 1592 1541 635 Charter Communications
22773 1459 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1383 250 675 Mediacom Communications Corp
7018 1337 7050 875 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
8402 1449 352 13 Corbina telecom
6830 635 1890 410 UPC Distribution Services
34984 578 108 180 BILISIM TELEKOM
20940 542 183 416 Akamai Technologies European
3320 502 8169 384 Deutsche Telekom AG
3292 480 2082 407 TDC Tele Danmark
12479 480 593 7 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
29049 423 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 1680 310 154 TVCABLE BOGOTA
8151 1413 2839 344 UniNet S.A. de C.V.
28573 1369 1014 68 NET Servicos de Comunicao S.A
7303 1164 683 175 Telecom Argentina Stet-France
14420 756 59 87 CORPORACION NACIONAL DE TELEC
22047 579 322 17 VTR PUNTO NET S.A.
6503 575 450 69 AVANTEL, S.A.
27947 574 71 83 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 521 85 94 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 814 146 36 LINKdotNET AS number
8452 723 445 11 TEDATA
15475 445 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 279 939 231 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
12258 198 28 58 Vodacom Internet Company
33776 197 13 13 Starcomms Nigeria Limited
29571 192 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 3555 3817 225 bellsouth.net, inc.
4766 2492 11047 956 Korea Telecom (KIX)
17974 1960 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
7029 1862 1008 195 Windstream Communications Inc
1785 1829 680 121 PaeTec Communications, Inc.
10620 1680 310 154 TVCABLE BOGOTA
4323 1627 1083 392 Time Warner Telecom
7545 1608 303 85 TPG Internet Pty Ltd
20115 1592 1541 635 Charter Communications
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 1960 1927 PT TELEKOMUNIKASI INDONESIA
1785 1829 1708 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
7029 1862 1667 Windstream Communications Inc
4766 2492 1536 Korea Telecom (KIX)
10620 1680 1526 TVCABLE BOGOTA
7545 1608 1523 TPG Internet Pty Ltd
8402 1449 1436 Corbina telecom
7552 1393 1386 Vietel Corporation
4755 1542 1367 TATA Communications formerly
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:804 /15:1423 /16:11999 /17:5995 /18:10019
/19:19844 /20:27162 /21:27224 /22:36804 /23:34964 /24:195524
/25:1126 /26:1335 /27:738 /28:176 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2191 3555 bellsouth.net, inc.
18566 1871 1915 Covad Communications
10620 1575 1680 TVCABLE BOGOTA
7029 1558 1862 Windstream Communications Inc
8402 1426 1449 Corbina telecom
30036 1345 1383 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1055 1829 PaeTec Communications, Inc.
7011 1049 1168 Citizens Utilities
22773 948 1459 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:383 2:480 4:15 5:1 6:3 8:356
12:1949 13:1 14:534 15:11 16:3 17:7
20:10 23:53 24:1690 27:965 31:579 32:65
33:4 34:2 36:4 38:751 40:108 41:2646
42:48 44:3 46:998 47:3 49:264 50:435
52:13 55:5 56:2 57:37 58:879 59:491
60:365 61:1174 62:1086 63:1931 64:4038 65:2302
66:4007 67:1963 68:1107 69:3194 70:832 71:377
72:1848 74:2485 75:362 76:341 77:885 78:874
79:478 80:1127 81:838 82:500 83:503 84:610
85:1115 86:402 87:873 88:352 89:1600 90:269
91:4158 92:529 93:1379 94:1308 95:1031 96:437
97:280 98:896 99:37 101:210 103:336 106:70
107:61 108:54 109:1040 110:666 111:794 112:321
113:479 114:566 115:698 116:873 117:706 118:891
119:1226 120:337 121:681 122:1606 123:1020 124:1365
125:1381 128:239 129:175 130:166 131:578 132:112
133:21 134:213 135:54 136:213 137:139 138:288
139:121 140:496 141:292 142:388 143:418 144:493
145:63 146:472 147:216 148:636 149:265 150:153
151:193 152:446 153:178 154:6 155:387 156:206
157:360 158:151 159:466 160:320 161:206 162:335
163:179 164:512 165:366 166:536 167:433 168:746
169:145 170:864 171:86 172:1 173:1661 174:659
175:407 176:274 177:282 178:1055 180:1102 181:37
182:628 183:210 184:382 185:1 186:1513 187:666
188:926 189:851 190:5190 192:5918 193:5018 194:3532
195:3098 196:1245 197:186 198:3622 199:4141 200:5515
201:1644 202:8562 203:8487 204:4291 205:2362 206:2673
207:2824 208:4028 209:3449 210:2694 211:1457 212:2057
213:1781 214:791 215:89 216:4919 217:1613 218:560
219:338 220:1241 221:513 222:342 223:285
End of report