Routing Table Report 04:00 +10GMT Fri 13 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 405836
Prefixes after maximum aggregation: 172297
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 196692
Total ASes present in the Internet Routing Table: 40679
Prefixes per ASN: 9.98
Origin-only ASes present in the Internet Routing Table: 33038
Origin ASes announcing only one prefix: 15609
Transit ASes present in the Internet Routing Table: 5441
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 69
Max AS path prepend of ASN ( 9902) 61
Prefixes from unregistered ASNs in the Routing Table: 387
Unregistered ASNs in the Routing Table: 125
Number of 32-bit ASNs allocated by the RIRs: 2556
Number of 32-bit ASNs visible in the Routing Table: 2200
Prefixes from 32-bit ASNs in the Routing Table: 5500
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2536113360
Equivalent to 151 /8s, 42 /16s and 4 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 173080
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99598
Total APNIC prefixes after maximum aggregation: 32226
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 96038
Unique aggregates announced from the APNIC address blocks: 39484
APNIC Region origin ASes present in the Internet Routing Table: 4677
APNIC Prefixes per ASN: 20.53
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 731
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 177
Number of APNIC addresses announced to Internet: 643206752
Equivalent to 38 /8s, 86 /16s and 142 /24s
Percentage of available APNIC address space announced: 81.6
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: 149691
Total ARIN prefixes after maximum aggregation: 76104
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120965
Unique aggregates announced from the ARIN address blocks: 50237
ARIN Region origin ASes present in the Internet Routing Table: 15030
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5728
ARIN Region transit ASes present in the Internet Routing Table: 1582
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: 17
Number of ARIN addresses announced to Internet: 807045568
Equivalent to 48 /8s, 26 /16s and 137 /24s
Percentage of available ARIN address space announced: 64.1
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: 101337
Total RIPE prefixes after maximum aggregation: 53550
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93232
Unique aggregates announced from the RIPE address blocks: 57983
RIPE Region origin ASes present in the Internet Routing Table: 16477
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8039
RIPE Region transit ASes present in the Internet Routing Table: 2630
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1482
Number of RIPE addresses announced to Internet: 509171080
Equivalent to 30 /8s, 89 /16s and 85 /24s
Percentage of available RIPE address space announced: 82.0
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: 40499
Total LACNIC prefixes after maximum aggregation: 8216
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 40346
Unique aggregates announced from the LACNIC address blocks: 20046
LACNIC Region origin ASes present in the Internet Routing Table: 1580
LACNIC Prefixes per ASN: 25.54
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 296
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: 519
Number of LACNIC addresses announced to Internet: 99213192
Equivalent to 5 /8s, 233 /16s and 223 /24s
Percentage of available LACNIC address space announced: 65.7
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: 9040
Total AfriNIC prefixes after maximum aggregation: 2132
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 7074
Unique aggregates announced from the AfriNIC address blocks: 2160
AfriNIC Region origin ASes present in the Internet Routing Table: 535
AfriNIC Prefixes per ASN: 13.22
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.4
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: 31662080
Equivalent to 1 /8s, 227 /16s and 32 /24s
Percentage of available AfriNIC address space announced: 47.2
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 2488 11113 1009 Korea Telecom (KIX)
17974 1800 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1665 301 88 TPG Internet Pty Ltd
4755 1590 388 166 TATA Communications formerly
9583 1248 95 541 Sify Limited
9829 1231 1041 30 BSNL National Internet Backbo
7552 1173 1062 11 Vietel Corporation
4808 1104 2050 317 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd., Telemedia
18101 947 131 160 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
6389 3431 3807 195 bellsouth.net, inc.
7029 3388 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1895 680 129 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1597 1043 379 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1445 263 757 Mediacom Communications Corp
7018 1281 9775 830 AT&T WorldNet Services
11492 1185 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 1787 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
34984 681 188 175 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 655 658 61 Uni2 Autonomous System
20940 641 204 494 Akamai Technologies European
6830 639 1943 410 UPC Distribution Services
8551 573 360 81 Bezeq International
3320 533 8442 399 Deutsche Telekom AG
2578 502 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 1811 327 162 TVCABLE BOGOTA
28573 1774 1106 60 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1483 3018 348 UniNet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 697 32 Tim Brasil S.A.
27947 686 74 99 Telconet S.A
11172 637 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 571 242 100 Empresa Nacional de Telecomun
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 1304 958 13 TEDATA
24863 848 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
33776 206 12 24 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 179 80 8 RAYA Telecom - Egypt
16637 173 666 83 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
29571 161 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
6389 3431 3807 195 bellsouth.net, inc.
7029 3388 985 157 Windstream Communications Inc
4766 2488 11113 1009 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1895 680 129 PaeTec Communications, Inc.
10620 1811 327 162 TVCABLE BOGOTA
17974 1800 503 63 PT TELEKOMUNIKASI INDONESIA
8402 1787 544 16 Corbina telecom
28573 1774 1106 60 NET Servicos de Comunicao S.A
7545 1665 301 88 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 3388 3231 Windstream Communications Inc
18566 2091 1912 Covad Communications
8402 1787 1771 Corbina telecom
1785 1895 1766 PaeTec Communications, Inc.
17974 1800 1737 PT TELEKOMUNIKASI INDONESIA
28573 1774 1714 NET Servicos de Comunicao S.A
10620 1811 1649 TVCABLE BOGOTA
7545 1665 1577 TPG Internet Pty Ltd
4766 2488 1479 Korea Telecom (KIX)
6503 1533 1468 AVANTEL, S.A.
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
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
37.230.0.0/19 9063 SaarGate Internet Service Pro
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 /12:235
/13:460 /14:832 /15:1480 /16:12199 /17:6273 /18:10513
/19:20619 /20:28864 /21:29860 /22:40538 /23:37807 /24:212363
/25:1192 /26:1422 /27:782 /28:163 /29:58 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3046 3388 Windstream Communications Inc
6389 2149 3431 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1764 1787 Corbina telecom
10620 1703 1811 TVCABLE BOGOTA
30036 1391 1445 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1112 1304 TEDATA
1785 1067 1895 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:532 2:725 4:14 6:3 8:399 12:1990
13:1 14:603 15:12 16:3 17:7 20:8
23:158 24:1768 27:1270 31:975 32:57 33:2
34:2 36:8 37:341 38:795 40:120 41:3158
42:134 44:3 46:1462 47:3 49:381 50:536
52:13 54:7 55:8 56:3 57:31 58:960
59:518 60:281 61:1266 62:981 63:1992 64:4162
65:2253 66:4497 67:2032 68:1150 69:3156 70:908
71:472 72:1819 74:2600 75:496 76:317 77:964
78:1006 79:495 80:1204 81:903 82:661 83:548
84:491 85:1205 86:406 87:925 88:351 89:1630
90:297 91:4709 92:521 93:1417 94:1468 95:1144
96:360 97:319 98:898 99:37 100:7 101:167
103:973 106:105 107:185 108:225 109:1309 110:757
111:918 112:450 113:593 114:624 115:871 116:900
117:724 118:904 119:1222 120:350 121:806 122:1666
123:1105 124:1371 125:1265 128:560 129:191 130:252
131:599 132:173 133:21 134:244 135:62 136:212
137:177 138:354 139:147 140:492 141:244 142:388
143:408 144:519 145:69 146:488 147:277 148:765
149:300 150:160 151:176 152:464 153:172 154:7
155:429 156:215 157:379 158:175 159:522 160:342
161:259 162:352 163:190 164:572 165:393 166:571
167:464 168:813 169:127 170:854 171:127 172:4
173:1725 174:587 175:428 176:483 177:659 178:1333
180:1171 181:73 182:796 183:269 184:451 185:1
186:2190 187:1011 188:1189 189:1794 190:5497 192:6000
193:5531 194:4630 195:3581 196:1293 197:123 198:3626
199:4493 200:5737 201:1921 202:8509 203:8602 204:4345
205:2483 206:2749 207:2781 208:4051 209:3587 210:2762
211:1477 212:2001 213:1904 214:894 215:109 216:5095
217:1539 218:544 219:345 220:1225 221:556 222:323
223:333
End of report
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