Routing Table Report 04:00 +10GMT Mon 11 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 413061
Prefixes after maximum aggregation: 175011
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 201787
Total ASes present in the Internet Routing Table: 41260
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 33275
Origin ASes announcing only one prefix: 15664
Transit ASes present in the Internet Routing Table: 5524
Transit-only ASes present in the Internet Routing Table: 142
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: 409
Unregistered ASNs in the Routing Table: 137
Number of 32-bit ASNs allocated by the RIRs: 2823
Number of 32-bit ASNs visible in the Routing Table: 2461
Prefixes from 32-bit ASNs in the Routing Table: 6251
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 154
Number of addresses announced to Internet: 2561722668
Equivalent to 152 /8s, 176 /16s and 201 /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: 171402
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100741
Total APNIC prefixes after maximum aggregation: 32586
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 97191
Unique aggregates announced from the APNIC address blocks: 40272
APNIC Region origin ASes present in the Internet Routing Table: 4707
APNIC Prefixes per ASN: 20.65
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 739
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: 225
Number of APNIC addresses announced to Internet: 648531520
Equivalent to 38 /8s, 167 /16s and 206 /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: 151556
Total ARIN prefixes after maximum aggregation: 77142
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 121938
Unique aggregates announced from the ARIN address blocks: 51382
ARIN Region origin ASes present in the Internet Routing Table: 15160
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5757
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: 816505792
Equivalent to 48 /8s, 170 /16s and 227 /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: 103007
Total RIPE prefixes after maximum aggregation: 54772
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 94937
Unique aggregates announced from the RIPE address blocks: 59911
RIPE Region origin ASes present in the Internet Routing Table: 16613
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 8060
RIPE Region transit ASes present in the Internet Routing Table: 2662
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: 1627
Number of RIPE addresses announced to Internet: 515807492
Equivalent to 30 /8s, 190 /16s and 153 /24s
Percentage of available RIPE address space announced: 83.1
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: 41986
Total LACNIC prefixes after maximum aggregation: 8285
LACNIC Deaggregation factor: 5.07
Prefixes being announced from the LACNIC address blocks: 42177
Unique aggregates announced from the LACNIC address blocks: 20608
LACNIC Region origin ASes present in the Internet Routing Table: 1599
LACNIC Prefixes per ASN: 26.38
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 307
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: 587
Number of LACNIC addresses announced to Internet: 101834888
Equivalent to 6 /8s, 17 /16s and 224 /24s
Percentage of available LACNIC address space announced: 67.4
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: 9334
Total AfriNIC prefixes after maximum aggregation: 2162
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 7366
Unique aggregates announced from the AfriNIC address blocks: 2195
AfriNIC Region origin ASes present in the Internet Routing Table: 542
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 122
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: 31836160
Equivalent to 1 /8s, 229 /16s and 200 /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 1683 301 87 TPG Internet Pty Ltd
4755 1592 385 155 TATA Communications formerly
9829 1303 1085 28 BSNL National Internet Backbo
7552 1179 1062 11 Vietel Corporation
9583 1175 87 502 Sify Limited
4808 1103 2049 314 CNCGROUP IP network: China169
24560 1029 385 163 Bharti Airtel Ltd., Telemedia
9498 966 291 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 3119 986 159 Windstream Communications Inc
18566 2091 382 181 Covad Communications
1785 1919 681 131 PaeTec Communications, Inc.
20115 1645 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 1222 10013 821 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 1656 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 718 699 84 Uni2 Autonomous System
34984 705 188 171 BILISIM TELEKOM
31148 684 37 9 FreeNet ISP
20940 668 219 521 Akamai Technologies European
6830 656 2217 425 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 1932 342 205 TVCABLE BOGOTA
28573 1922 1184 48 NET Servicos de Comunicao S.A
6503 1531 418 65 AVANTEL, S.A.
8151 1486 3067 335 UniNet S.A. de C.V.
7303 1437 901 193 Telecom Argentina Stet-France
26615 903 760 32 Tim Brasil S.A.
27947 700 73 94 Telconet S.A
11172 643 91 73 Servicios Alestra S.A de C.V
3816 584 247 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 1327 958 13 TEDATA
24863 854 274 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 170 664 87 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 3119 986 159 Windstream Communications Inc
4766 2637 11113 1122 Korea Telecom (KIX)
18566 2091 382 181 Covad Communications
10620 1932 342 205 TVCABLE BOGOTA
17974 1928 530 81 PT TELEKOMUNIKASI INDONESIA
28573 1922 1184 48 NET Servicos de Comunicao S.A
1785 1919 681 131 PaeTec Communications, Inc.
7545 1683 301 87 TPG Internet Pty Ltd
8402 1656 544 16 Corbina telecom
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 3119 2960 Windstream Communications Inc
18566 2091 1910 Covad Communications
28573 1922 1874 NET Servicos de Comunicao S.A
17974 1928 1847 PT TELEKOMUNIKASI INDONESIA
1785 1919 1788 PaeTec Communications, Inc.
10620 1932 1727 TVCABLE BOGOTA
8402 1656 1640 Corbina telecom
7545 1683 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
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
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 /14:831 /15:1504 /16:12299 /17:6307 /18:10638
/19:20790 /20:29550 /21:31049 /22:40770 /23:38494 /24:216196
/25:1239 /26:1450 /27:828 /28:171 /29:67 /30:17
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2802 3119 Windstream Communications Inc
6389 2129 3409 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1635 1656 Corbina telecom
30036 1366 1426 Mediacom Communications Corp
6503 1221 1531 AVANTEL, S.A.
11492 1152 1189 Cable One
8452 1122 1327 TEDATA
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 2:678 3:1 4:13 5:50 6:3
8:426 12:2015 13:1 14:612 15:12 16:3
17:5 20:23 23:180 24:1778 27:1308 31:986
32:56 33:2 34:2 36:9 37:697 38:812
40:127 41:3177 42:135 44:3 46:1422 47:2
49:402 50:560 52:13 54:12 55:6 56:1
57:32 58:960 59:498 60:259 61:1211 62:1005
63:2006 64:4235 65:2250 66:4451 67:2026 68:1159
69:3171 70:950 71:500 72:1823 74:2593 75:464
76:327 77:957 78:979 79:488 80:1220 81:940
82:664 83:543 84:508 85:1188 86:434 87:921
88:337 89:1722 90:293 91:4920 92:558 93:1355
94:1567 95:1222 96:367 97:315 98:890 99:38
100:8 101:261 103:1135 106:95 107:186 108:330
109:1365 110:774 111:921 112:418 113:617 114:629
115:847 116:956 117:722 118:922 119:1226 120:358
121:694 122:1668 123:1103 124:1389 125:1261 128:565
129:202 130:249 131:633 132:287 133:22 134:241
135:61 136:215 137:239 138:358 139:175 140:494
141:252 142:415 143:375 144:530 145:72 146:510
147:294 148:771 149:312 150:165 151:178 152:469
153:174 154:14 155:445 156:221 157:381 158:188
159:583 160:346 161:267 162:348 163:190 164:638
165:404 166:590 167:472 168:864 169:127 170:879
171:138 172:4 173:1760 174:605 175:433 176:541
177:809 178:1394 180:1236 181:91 182:1049 183:228
184:531 185:1 186:2325 187:1120 188:1348 189:1841
190:5631 192:6004 193:5517 194:4535 195:3387 196:1225
197:150 198:3657 199:4762 200:5893 201:1951 202:8625
203:8572 204:4346 205:2526 206:2772 207:2800 208:4009
209:3613 210:2769 211:1548 212:2034 213:1932 214:876
215:98 216:5102 217:1567 218:553 219:313 220:1234
221:570 222:317 223:321
End of report