Routing Table Report 04:00 +10GMT Wed 28 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 403707
Prefixes after maximum aggregation: 171428
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195603
Total ASes present in the Internet Routing Table: 40501
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 32932
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5436
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 492
Unregistered ASNs in the Routing Table: 239
Number of 32-bit ASNs allocated by the RIRs: 2337
Number of 32-bit ASNs visible in the Routing Table: 2133
Prefixes from 32-bit ASNs in the Routing Table: 5221
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1154
Number of addresses announced to Internet: 2528474496
Equivalent to 150 /8s, 181 /16s and 117 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171795
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98656
Total APNIC prefixes after maximum aggregation: 32030
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95057
Unique aggregates announced from the APNIC address blocks: 39205
APNIC Region origin ASes present in the Internet Routing Table: 4675
APNIC Prefixes per ASN: 20.33
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 169
Number of APNIC addresses announced to Internet: 642207072
Equivalent to 38 /8s, 71 /16s and 77 /24s
Percentage of available APNIC address space announced: 81.4
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: 150689
Total ARIN prefixes after maximum aggregation: 75853
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 121986
Unique aggregates announced from the ARIN address blocks: 49956
ARIN Region origin ASes present in the Internet Routing Table: 14939
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5685
ARIN Region transit ASes present in the Internet Routing Table: 1575
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 805117952
Equivalent to 47 /8s, 253 /16s and 32 /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: 100722
Total RIPE prefixes after maximum aggregation: 53137
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92048
Unique aggregates announced from the RIPE address blocks: 57158
RIPE Region origin ASes present in the Internet Routing Table: 16351
RIPE Prefixes per ASN: 5.63
RIPE Region origin ASes announcing only one prefix: 7957
RIPE Region transit ASes present in the Internet Routing Table: 2633
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1447
Number of RIPE addresses announced to Internet: 502255104
Equivalent to 29 /8s, 239 /16s and 206 /24s
Percentage of available RIPE address space announced: 80.9
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: 39252
Total LACNIC prefixes after maximum aggregation: 8091
LACNIC Deaggregation factor: 4.85
Prefixes being announced from the LACNIC address blocks: 38845
Unique aggregates announced from the LACNIC address blocks: 19780
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 24.66
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 295
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 496
Number of LACNIC addresses announced to Internet: 98714752
Equivalent to 5 /8s, 226 /16s and 68 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8827
Total AfriNIC prefixes after maximum aggregation: 2101
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6900
Unique aggregates announced from the AfriNIC address blocks: 2162
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.19
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 30447360
Equivalent to 1 /8s, 208 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 45.4
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 2493 11109 992 Korea Telecom (KIX)
17974 1786 503 61 PT TELEKOMUNIKASI INDONESIA
7545 1659 301 89 TPG Internet Pty Ltd
4755 1573 386 160 TATA Communications formerly
9583 1238 95 540 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1177 1062 11 Vietel Corporation
4808 1098 2048 315 CNCGROUP IP network: China169
24560 1018 385 167 Bharti Airtel Ltd., Telemedia
18101 949 130 160 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
7029 3377 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2975 1060 385 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1887 680 129 PaeTec Communications, Inc.
20115 1635 1559 626 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1408 254 741 Mediacom Communications Corp
7018 1278 9775 831 AT&T WorldNet Services
11492 1183 216 365 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 1804 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
31148 672 37 9 FreeNet ISP
34984 666 188 174 BILISIM TELEKOM
12479 655 658 57 Uni2 Autonomous System
6830 641 1943 412 UPC Distribution Services
20940 639 204 492 Akamai Technologies European
8551 577 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG
2578 500 33 7 Demos, Moscow, Russia
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 1808 329 126 TVCABLE BOGOTA
28573 1736 1105 58 NET Servicos de Comunicao S.A
8151 1374 3019 350 UniNet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 902 700 28 Tim Brasil S.A.
27947 669 69 114 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 562 239 96 Empresa Nacional de Telecomun
6503 556 418 65 AVANTEL, 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 1269 958 13 TEDATA
24863 846 274 37 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 271 924 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 164 664 82 MTN Network Solutions
29571 159 15 16 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
7029 3377 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2975 1060 385 Time Warner Telecom
4766 2493 11109 992 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1887 680 129 PaeTec Communications, Inc.
10620 1808 329 126 TVCABLE BOGOTA
8402 1804 544 16 Corbina telecom
17974 1786 503 61 PT TELEKOMUNIKASI INDONESIA
28573 1736 1105 58 NET Servicos de Comunicao S.A
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3371 3175 bellsouth.net, inc.
4323 2975 2590 Time Warner Telecom
18566 2093 1914 Covad Communications
8402 1804 1788 Corbina telecom
1785 1887 1758 PaeTec Communications, Inc.
17974 1786 1725 PT TELEKOMUNIKASI INDONESIA
10620 1808 1682 TVCABLE BOGOTA
28573 1736 1678 NET Servicos de Comunicao S.A
7545 1659 1570 TPG Internet Pty Ltd
4766 2493 1501 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
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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
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
23.28.192.0/18 29737 WideOpenWest LLC
23.29.0.0/20 4323 Time Warner Telecom
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 /10:28 /11:81 /12:233
/13:457 /14:832 /15:1479 /16:12189 /17:6254 /18:10437
/19:20580 /20:28739 /21:29705 /22:40244 /23:37557 /24:211338
/25:1223 /26:1463 /27:798 /28:14 /29:7 /30:3
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3037 3377 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1806 2975 Time Warner Telecom
8402 1781 1804 Corbina telecom
10620 1705 1808 TVCABLE BOGOTA
30036 1356 1408 Mediacom Communications Corp
11492 1146 1183 Cable One
8452 1079 1269 TEDATA
1785 1067 1887 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:759 4:14 6:3 8:391 12:1979
13:1 14:600 15:12 16:3 17:7 20:8
23:152 24:1755 27:1257 31:942 32:58 33:2
34:2 36:8 37:299 38:782 40:120 41:3000
42:130 44:3 46:1452 47:3 49:342 50:640
52:13 54:6 55:10 56:3 57:32 58:967
59:493 60:278 61:1203 62:971 63:1996 64:4345
65:2275 66:4838 67:2016 68:1146 69:3187 70:901
71:446 72:1820 74:2708 75:493 76:319 77:964
78:986 79:500 80:1206 81:900 82:661 83:553
84:518 85:1205 86:407 87:915 88:344 89:1618
90:297 91:4640 92:519 93:1395 94:1458 95:1159
96:375 97:385 98:840 99:37 100:6 101:160
103:911 106:64 107:178 108:210 109:1265 110:756
111:903 112:445 113:563 114:627 115:788 116:911
117:723 118:909 119:1206 120:273 121:696 122:1649
123:1098 124:1362 125:1263 128:557 129:191 130:260
131:595 132:172 133:21 134:243 135:63 136:212
137:194 138:351 139:145 140:494 141:241 142:388
143:411 144:500 145:69 146:488 147:244 148:721
149:296 150:157 151:176 152:459 153:171 154:7
155:430 156:213 157:380 158:171 159:524 160:325
161:249 162:343 163:188 164:547 165:393 166:561
167:463 168:859 169:148 170:845 171:124 172:4
173:1836 174:739 175:433 176:455 177:598 178:1296
180:1150 181:72 182:756 183:276 184:442 185:1
186:2150 187:867 188:1159 189:1183 190:5536 192:5997
193:5586 194:4612 195:3599 196:1271 197:177 198:3625
199:4482 200:5769 201:1851 202:8462 203:8591 204:4345
205:2466 206:2801 207:2824 208:4053 209:3691 210:2762
211:1467 212:1979 213:1901 214:874 215:107 216:5106
217:1521 218:539 219:332 220:1232 221:553 222:325
223:328
End of report
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