Routing Table Report 04:00 +10GMT Fri 08 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 413082
Prefixes after maximum aggregation: 174991
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 201642
Total ASes present in the Internet Routing Table: 41265
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 33305
Origin ASes announcing only one prefix: 15689
Transit ASes present in the Internet Routing Table: 5505
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 394
Unregistered ASNs in the Routing Table: 138
Number of 32-bit ASNs allocated by the RIRs: 2810
Number of 32-bit ASNs visible in the Routing Table: 2455
Prefixes from 32-bit ASNs in the Routing Table: 6215
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 159
Number of addresses announced to Internet: 2560979756
Equivalent to 152 /8s, 165 /16s and 115 /24s
Percentage of available address space announced: 69.1
Percentage of allocated address space announced: 69.2
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.8
Total number of prefixes smaller than registry allocations: 171579
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100672
Total APNIC prefixes after maximum aggregation: 32572
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 97124
Unique aggregates announced from the APNIC address blocks: 40277
APNIC Region origin ASes present in the Internet Routing Table: 4702
APNIC Prefixes per ASN: 20.66
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 737
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 223
Number of APNIC addresses announced to Internet: 648449600
Equivalent to 38 /8s, 166 /16s and 142 /24s
Percentage of available APNIC address space announced: 82.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 151720
Total ARIN prefixes after maximum aggregation: 77144
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 122061
Unique aggregates announced from the ARIN address blocks: 51375
ARIN Region origin ASes present in the Internet Routing Table: 15158
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5759
ARIN Region transit ASes present in the Internet Routing Table: 1600
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 816501952
Equivalent to 48 /8s, 170 /16s and 212 /24s
Percentage of available ARIN address space announced: 65.1
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: 102921
Total RIPE prefixes after maximum aggregation: 54767
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 94844
Unique aggregates announced from the RIPE address blocks: 59823
RIPE Region origin ASes present in the Internet Routing Table: 16629
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 8074
RIPE Region transit ASes present in the Internet Routing Table: 2655
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1625
Number of RIPE addresses announced to Internet: 515407108
Equivalent to 30 /8s, 184 /16s and 125 /24s
Percentage of available RIPE address space announced: 83.0
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
59392-61439, 196608-199679
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: 41970
Total LACNIC prefixes after maximum aggregation: 8273
LACNIC Deaggregation factor: 5.07
Prefixes being announced from the LACNIC address blocks: 42150
Unique aggregates announced from the LACNIC address blocks: 20594
LACNIC Region origin ASes present in the Internet Routing Table: 1601
LACNIC Prefixes per ASN: 26.33
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 304
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: 585
Number of LACNIC addresses announced to Internet: 101956488
Equivalent to 6 /8s, 19 /16s and 187 /24s
Percentage of available LACNIC address space announced: 67.5
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: 9398
Total AfriNIC prefixes after maximum aggregation: 2171
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7429
Unique aggregates announced from the AfriNIC address blocks: 2195
AfriNIC Region origin ASes present in the Internet Routing Table: 545
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31838208
Equivalent to 1 /8s, 229 /16s and 208 /24s
Percentage of available AfriNIC address space announced: 47.4
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 2637 11113 1122 Korea Telecom (KIX)
17974 1928 530 81 PT TELEKOMUNIKASI INDONESIA
7545 1681 301 85 TPG Internet Pty Ltd
4755 1590 385 155 TATA Communications formerly
9829 1303 1085 28 BSNL National Internet Backbo
9583 1174 87 501 Sify Limited
7552 1172 1062 11 Vietel Corporation
4808 1103 2049 314 CNCGROUP IP network: China169
24560 1028 385 165 Bharti Airtel Ltd., Telemedia
9498 964 291 64 BHARTI Airtel Ltd.
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 3409 3791 192 bellsouth.net, inc.
7029 3343 986 159 Windstream Communications Inc
18566 2091 382 181 Covad Communications
1785 1915 680 130 PaeTec Communications, Inc.
20115 1647 1570 616 Charter Communications
22773 1644 2911 121 Cox Communications, Inc.
4323 1574 1043 385 Time Warner Telecom
30036 1426 265 754 Mediacom Communications Corp
7018 1223 10013 822 AT&T WorldNet Services
11492 1189 216 356 Cable One
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 1731 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 707 690 79 Uni2 Autonomous System
34984 705 188 171 BILISIM TELEKOM
31148 683 37 9 FreeNet ISP
20940 671 221 523 Akamai Technologies European
6830 657 2217 426 UPC Distribution Services
8551 579 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
3292 474 2108 408 TDC Tele Danmark
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 1926 341 204 TVCABLE BOGOTA
28573 1924 1184 48 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1494 3084 335 UniNet S.A. de C.V.
7303 1436 901 192 Telecom Argentina Stet-France
26615 902 760 32 Tim Brasil S.A.
27947 693 73 94 Telconet S.A
11172 644 91 73 Servicios Alestra S.A de C.V
3816 583 247 89 Empresa Nacional de Telecomun
22047 583 326 15 VTR PUNTO NET 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
8452 1388 958 13 TEDATA
24863 852 274 35 LINKdotNET AS number
6713 497 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
16637 171 666 85 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
36923 157 20 4 Swift Networks Limited
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 3409 3791 192 bellsouth.net, inc.
7029 3343 986 159 Windstream Communications Inc
4766 2637 11113 1122 Korea Telecom (KIX)
18566 2091 382 181 Covad Communications
17974 1928 530 81 PT TELEKOMUNIKASI INDONESIA
10620 1926 341 204 TVCABLE BOGOTA
28573 1924 1184 48 NET Servicos de Comunicao S.A
1785 1915 680 130 PaeTec Communications, Inc.
8402 1731 544 16 Corbina telecom
7545 1681 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3343 3184 Windstream Communications Inc
18566 2091 1910 Covad Communications
28573 1924 1876 NET Servicos de Comunicao S.A
17974 1928 1847 PT TELEKOMUNIKASI INDONESIA
1785 1915 1785 PaeTec Communications, Inc.
10620 1926 1722 TVCABLE BOGOTA
8402 1731 1715 Corbina telecom
7545 1681 1596 TPG Internet Pty Ltd
22773 1644 1523 Cox Communications, Inc.
4766 2637 1515 Korea Telecom (KIX)
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
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
32873 UNALLOCATED 12.46.102.0/24 10912 InterNAP Network Ser
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
41.188.64.0/18 29544 Mauritanian Telecommunication
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 /9:13 /10:28 /11:82 /12:236
/13:461 /14:832 /15:1503 /16:12294 /17:6302 /18:10628
/19:20775 /20:29526 /21:31023 /22:40800 /23:38556 /24:216219
/25:1234 /26:1448 /27:827 /28:172 /29:66 /30:16
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3001 3343 Windstream Communications Inc
6389 2129 3409 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1709 1731 Corbina telecom
30036 1366 1426 Mediacom Communications Corp
6503 1223 1533 AVANTEL, S.A.
8452 1187 1388 TEDATA
11492 1152 1189 Cable One
22773 1089 1644 Cox Communications, Inc.
7011 1073 1188 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:555 2:742 3:1 4:13 5:51 6:3
8:425 12:2009 13:1 14:621 15:12 16:3
17:5 20:23 23:180 24:1777 27:1303 31:984
32:56 33:2 34:2 36:9 37:680 38:811
40:125 41:3244 42:135 44:3 46:1431 47:2
49:401 50:555 52:13 54:12 55:13 56:1
57:33 58:960 59:498 60:259 61:1210 62:982
63:2005 64:4229 65:2247 66:4452 67:2027 68:1158
69:3180 70:953 71:508 72:1823 74:2600 75:480
76:327 77:956 78:974 79:488 80:1224 81:939
82:663 83:543 84:483 85:1193 86:433 87:900
88:336 89:1730 90:293 91:4910 92:557 93:1380
94:1570 95:1221 96:367 97:315 98:894 99:38
100:8 101:261 103:1123 106:95 107:186 108:331
109:1364 110:774 111:916 112:416 113:616 114:629
115:846 116:955 117:723 118:921 119:1232 120:358
121:695 122:1668 123:1100 124:1392 125:1261 128:555
129:201 130:248 131:632 132:289 133:22 134:242
135:61 136:215 137:240 138:358 139:186 140:493
141:260 142:416 143:423 144:520 145:72 146:510
147:286 148:776 149:310 150:164 151:178 152:469
153:174 154:14 155:443 156:222 157:381 158:186
159:577 160:344 161:264 162:347 163:190 164:638
165:404 166:592 167:470 168:863 169:127 170:878
171:136 172:4 173:1770 174:615 175:433 176:539
177:817 178:1394 180:1232 181:87 182:1050 183:228
184:528 185:1 186:2314 187:1121 188:1348 189:1827
190:5593 192:6004 193:5512 194:4530 195:3392 196:1218
197:147 198:3665 199:4754 200:5893 201:1944 202:8627
203:8562 204:4343 205:2521 206:2773 207:2804 208:4014
209:3619 210:2764 211:1547 212:2034 213:1922 214:879
215:98 216:5104 217:1555 218:551 219:313 220:1235
221:570 222:316 223:321
End of report