Routing Table Report 04:00 +10GMT Mon 12 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 400170
Prefixes after maximum aggregation: 170709
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 194827
Total ASes present in the Internet Routing Table: 40302
Prefixes per ASN: 9.93
Origin-only ASes present in the Internet Routing Table: 32834
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5409
Transit-only ASes present in the Internet Routing Table: 145
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: 375
Unregistered ASNs in the Routing Table: 166
Number of 32-bit ASNs allocated by the RIRs: 2313
Number of 32-bit ASNs visible in the Routing Table: 2059
Prefixes from 32-bit ASNs in the Routing Table: 4920
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 572
Number of addresses announced to Internet: 2524796560
Equivalent to 150 /8s, 125 /16s and 86 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
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: 170048
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98475
Total APNIC prefixes after maximum aggregation: 31877
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 94856
Unique aggregates announced from the APNIC address blocks: 39516
APNIC Region origin ASes present in the Internet Routing Table: 4658
APNIC Prefixes per ASN: 20.36
APNIC Region origin ASes announcing only one prefix: 1233
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: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 164
Number of APNIC addresses announced to Internet: 640821600
Equivalent to 38 /8s, 50 /16s and 41 /24s
Percentage of available APNIC address space announced: 81.3
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: 148601
Total ARIN prefixes after maximum aggregation: 75637
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120160
Unique aggregates announced from the ARIN address blocks: 49843
ARIN Region origin ASes present in the Internet Routing Table: 14922
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5659
ARIN Region transit ASes present in the Internet Routing Table: 1572
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: 15
Number of ARIN addresses announced to Internet: 805844736
Equivalent to 48 /8s, 8 /16s and 55 /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: 100167
Total RIPE prefixes after maximum aggregation: 52830
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91701
Unique aggregates announced from the RIPE address blocks: 56931
RIPE Region origin ASes present in the Internet Routing Table: 16335
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2620
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: 1406
Number of RIPE addresses announced to Internet: 501512968
Equivalent to 29 /8s, 228 /16s and 123 /24s
Percentage of available RIPE address space announced: 80.8
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: 39003
Total LACNIC prefixes after maximum aggregation: 8140
LACNIC Deaggregation factor: 4.79
Prefixes being announced from the LACNIC address blocks: 38681
Unique aggregates announced from the LACNIC address blocks: 19701
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 24.59
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 470
Number of LACNIC addresses announced to Internet: 98123656
Equivalent to 5 /8s, 217 /16s and 63 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8776
Total AfriNIC prefixes after maximum aggregation: 2096
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6856
Unique aggregates announced from the AfriNIC address blocks: 2169
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.18
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31558912
Equivalent to 1 /8s, 225 /16s and 141 /24s
Percentage of available AfriNIC address space announced: 47.0
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 2494 11110 994 Korea Telecom (KIX)
17974 1735 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1648 303 87 TPG Internet Pty Ltd
4755 1566 386 159 TATA Communications formerly
9583 1200 91 509 Sify Limited
9829 1188 1001 30 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
4808 1093 2048 311 CNCGROUP IP network: China169
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
18101 948 130 155 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 3418 1014 159 Windstream Communications Inc
6389 3405 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1881 680 128 PaeTec Communications, Inc.
20115 1635 1555 634 Charter Communications
4323 1608 1059 384 Time Warner Telecom
22773 1544 2910 111 Cox Communications, Inc.
30036 1421 259 760 Mediacom Communications Corp
7018 1278 9776 839 AT&T WorldNet Services
2386 1162 493 859 AT&T Data Communications Serv
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 1851 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1087 2184 60 LDCOM NETWORKS
34984 659 188 171 BILISIM TELEKOM
12479 643 648 54 Uni2 Autonomous System
6830 640 1927 411 UPC Distribution Services
20940 635 203 486 Akamai Technologies European
8551 577 360 81 Bezeq International
31148 540 37 9 FreeNet ISP
3320 533 8442 399 Deutsche Telekom AG
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 1761 326 160 TVCABLE BOGOTA
28573 1688 1092 57 NET Servicos de Comunicao S.A
8151 1483 3013 348 UniNet S.A. de C.V.
7303 1329 823 184 Telecom Argentina Stet-France
26615 899 672 33 Tim Brasil S.A.
27947 677 68 110 Telconet S.A
11172 634 91 72 Servicios Alestra S.A de C.V
22047 582 322 17 VTR PUNTO NET S.A.
6503 568 418 65 AVANTEL, S.A.
3816 557 240 92 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 1254 958 13 TEDATA
24863 834 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 182 80 8 RAYA Telecom - Egypt
33776 161 12 16 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 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 3418 1014 159 Windstream Communications Inc
6389 3405 3807 198 bellsouth.net, inc.
4766 2494 11110 994 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1881 680 128 PaeTec Communications, Inc.
8402 1851 544 16 Corbina telecom
10620 1761 326 160 TVCABLE BOGOTA
17974 1735 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1688 1092 57 NET Servicos de Comunicao S.A
7545 1648 303 87 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
6389 3405 3207 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1851 1835 Corbina telecom
1785 1881 1753 PaeTec Communications, Inc.
17974 1735 1698 PT TELEKOMUNIKASI INDONESIA
28573 1688 1631 NET Servicos de Comunicao S.A
10620 1761 1601 TVCABLE BOGOTA
7545 1648 1561 TPG Internet Pty Ltd
4766 2494 1500 Korea Telecom (KIX)
22773 1544 1433 Cox Communications, Inc.
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
23.27.0.0/20 54500 EGIHosting
23.27.0.0/16 54500 EGIHosting
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
/13:458 /14:818 /15:1473 /16:12173 /17:6225 /18:10411
/19:20457 /20:28566 /21:29384 /22:39910 /23:37161 /24:209058
/25:1216 /26:1442 /27:783 /28:166 /29:59 /30:16
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3073 3418 Windstream Communications Inc
6389 2103 3405 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1829 1851 Corbina telecom
10620 1658 1761 TVCABLE BOGOTA
30036 1370 1421 Mediacom Communications Corp
11492 1125 1162 Cable One
1785 1064 1881 PaeTec Communications, Inc.
8452 1064 1254 TEDATA
15557 1034 1087 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:522 2:787 4:14 8:392 12:1961 13:1
14:596 15:12 16:3 17:7 20:8 23:141
24:1749 27:1232 31:960 32:62 33:2 34:2
36:9 37:236 38:778 40:117 41:3004 42:127
44:3 46:1402 47:3 49:340 50:511 52:13
54:5 55:9 56:3 57:38 58:953 59:496
60:284 61:1189 62:974 63:2010 64:4141 65:2283
66:4479 67:2033 68:1158 69:3168 70:885 71:312
72:1778 74:2572 75:469 76:320 77:977 78:961
79:485 80:1207 81:888 82:633 83:538 84:605
85:1186 86:726 87:914 88:334 89:1564 90:285
91:4542 92:515 93:1404 94:1373 95:1116 96:375
97:316 98:829 99:38 100:5 101:234 103:894
106:64 107:172 108:195 109:1535 110:742 111:861
112:440 113:555 114:617 115:776 116:878 117:724
118:905 119:1266 120:330 121:688 122:1626 123:1084
124:1364 125:1339 128:542 129:192 130:263 131:591
132:169 133:21 134:236 135:63 136:212 137:184
138:275 139:145 140:491 141:236 142:389 143:415
144:499 145:69 146:491 147:242 148:725 149:300
150:161 151:176 152:449 153:171 154:7 155:430
156:212 157:381 158:162 159:519 160:329 161:245
162:344 163:186 164:531 165:394 166:564 167:463
168:810 169:148 170:842 171:117 172:4 173:1716
174:597 175:432 176:546 177:541 178:1284 180:1209
181:67 182:768 183:285 184:443 185:1 186:2108
187:848 188:1054 189:1205 190:5514 192:5986 193:5570
194:4363 195:3403 196:1290 197:168 198:3628 199:4445
200:5743 201:1765 202:8448 203:8684 204:4358 205:2456
206:2756 207:2789 208:4054 209:3602 210:2763 211:1465
212:1953 213:1871 214:857 215:101 216:5042 217:1524
218:541 219:332 220:1228 221:552 222:324 223:326
End of report
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