Routing Table Report 04:00 +10GMT Mon 23 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 406279
Prefixes after maximum aggregation: 172709
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 197684
Total ASes present in the Internet Routing Table: 40767
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33079
Origin ASes announcing only one prefix: 15617
Transit ASes present in the Internet Routing Table: 5453
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 64
Max AS path prepend of ASN ( 9902) 56
Prefixes from unregistered ASNs in the Routing Table: 390
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 2617
Number of 32-bit ASNs visible in the Routing Table: 2235
Prefixes from 32-bit ASNs in the Routing Table: 5600
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2538428240
Equivalent to 151 /8s, 77 /16s and 87 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 173269
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99341
Total APNIC prefixes after maximum aggregation: 32219
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95803
Unique aggregates announced from the APNIC address blocks: 39801
APNIC Region origin ASes present in the Internet Routing Table: 4685
APNIC Prefixes per ASN: 20.45
APNIC Region origin ASes announcing only one prefix: 1236
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 183
Number of APNIC addresses announced to Internet: 644107104
Equivalent to 38 /8s, 100 /16s and 75 /24s
Percentage of available APNIC address space announced: 81.7
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: 149818
Total ARIN prefixes after maximum aggregation: 76283
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 121113
Unique aggregates announced from the ARIN address blocks: 50375
ARIN Region origin ASes present in the Internet Routing Table: 15049
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5733
ARIN Region transit ASes present in the Internet Routing Table: 1587
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807182784
Equivalent to 48 /8s, 28 /16s and 161 /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: 101534
Total RIPE prefixes after maximum aggregation: 53738
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93444
Unique aggregates announced from the RIPE address blocks: 58223
RIPE Region origin ASes present in the Internet Routing Table: 16505
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8044
RIPE Region transit ASes present in the Internet Routing Table: 2629
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: 1503
Number of RIPE addresses announced to Internet: 510038024
Equivalent to 30 /8s, 102 /16s and 144 /24s
Percentage of available RIPE address space announced: 82.2
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: 40785
Total LACNIC prefixes after maximum aggregation: 8279
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 40633
Unique aggregates announced from the LACNIC address blocks: 20238
LACNIC Region origin ASes present in the Internet Routing Table: 1591
LACNIC Prefixes per ASN: 25.54
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 299
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 527
Number of LACNIC addresses announced to Internet: 99362952
Equivalent to 5 /8s, 236 /16s and 40 /24s
Percentage of available LACNIC address space announced: 65.8
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: 9027
Total AfriNIC prefixes after maximum aggregation: 2121
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 7109
Unique aggregates announced from the AfriNIC address blocks: 2185
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31782400
Equivalent to 1 /8s, 228 /16s and 246 /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 2497 11113 1012 Korea Telecom (KIX)
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1677 301 88 TPG Internet Pty Ltd
4755 1571 386 158 TATA Communications formerly
9829 1247 1069 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
9583 1144 85 489 Sify Limited
4808 1105 2049 318 CNCGROUP IP network: China169
24560 1024 385 167 Bharti Airtel Ltd., Telemedia
9498 948 291 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 3427 3807 195 bellsouth.net, inc.
7029 3368 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1903 680 130 PaeTec Communications, Inc.
20115 1640 1566 619 Charter Communications
4323 1602 1044 381 Time Warner Telecom
22773 1577 2910 112 Cox Communications, Inc.
30036 1412 258 763 Mediacom Communications Corp
7018 1260 9775 819 AT&T WorldNet Services
11492 1186 216 364 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 1746 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 680 37 9 FreeNet ISP
34984 680 188 174 BILISIM TELEKOM
6830 657 2215 426 UPC Distribution Services
20940 650 206 501 Akamai Technologies European
12479 646 666 63 Uni2 Autonomous System
8551 572 360 81 Bezeq International
3320 531 8441 397 Deutsche Telekom AG
2578 501 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 1810 327 176 TVCABLE BOGOTA
28573 1785 1107 59 NET Servicos de Comunicao S.A
6503 1532 418 65 AVANTEL, S.A.
8151 1492 3034 349 UniNet S.A. de C.V.
7303 1363 829 188 Telecom Argentina Stet-France
26615 901 681 33 Tim Brasil S.A.
27947 684 74 98 Telconet S.A
11172 639 91 73 Servicios Alestra S.A de C.V
22047 582 326 15 VTR PUNTO NET S.A.
3816 572 242 100 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 1316 958 13 TEDATA
24863 840 274 35 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
16637 171 666 83 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
29571 159 15 15 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 3427 3807 195 bellsouth.net, inc.
7029 3368 985 157 Windstream Communications Inc
4766 2497 11113 1012 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1903 680 130 PaeTec Communications, Inc.
10620 1810 327 176 TVCABLE BOGOTA
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1785 1107 59 NET Servicos de Comunicao S.A
8402 1746 544 16 Corbina telecom
7545 1677 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 3368 3211 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1903 1773 PaeTec Communications, Inc.
17974 1799 1736 PT TELEKOMUNIKASI INDONESIA
8402 1746 1730 Corbina telecom
28573 1785 1726 NET Servicos de Comunicao S.A
10620 1810 1634 TVCABLE BOGOTA
7545 1677 1589 TPG Internet Pty Ltd
4766 2497 1485 Korea Telecom (KIX)
6503 1532 1467 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
41.222.79.0/24 36938 >>UNKNOWN<<
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
/13:459 /14:830 /15:1483 /16:12228 /17:6242 /18:10538
/19:20623 /20:28953 /21:29940 /22:40527 /23:37870 /24:212537
/25:1196 /26:1425 /27:788 /28:163 /29:66 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3026 3368 Windstream Communications Inc
6389 2145 3427 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1723 1746 Corbina telecom
10620 1695 1810 TVCABLE BOGOTA
30036 1358 1412 Mediacom Communications Corp
6503 1290 1532 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1116 1316 TEDATA
1785 1071 1903 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:538 2:761 4:14 6:3 8:402 12:2009
13:1 14:606 15:12 16:3 17:7 20:22
23:167 24:1770 27:1270 31:949 32:57 33:2
34:2 36:8 37:399 38:798 40:120 41:3200
42:134 44:3 46:1488 47:3 49:384 50:532
52:13 54:8 55:9 56:3 57:31 58:961
59:491 60:281 61:1194 62:979 63:1988 64:4166
65:2253 66:4495 67:2019 68:1167 69:3187 70:902
71:486 72:1819 74:2596 75:494 76:319 77:947
78:1011 79:485 80:1205 81:901 82:668 83:551
84:472 85:1209 86:412 87:923 88:345 89:1621
90:291 91:4740 92:524 93:1354 94:1488 95:1160
96:360 97:315 98:887 99:37 100:7 101:174
103:1012 106:102 107:188 108:235 109:1287 110:753
111:921 112:455 113:598 114:642 115:807 116:909
117:717 118:906 119:1231 120:354 121:685 122:1664
123:1097 124:1363 125:1248 128:514 129:194 130:253
131:590 132:179 133:22 134:244 135:62 136:212
137:176 138:355 139:148 140:492 141:245 142:402
143:394 144:525 145:69 146:491 147:276 148:765
149:303 150:157 151:175 152:464 153:171 154:9
155:398 156:215 157:380 158:176 159:524 160:337
161:261 162:351 163:190 164:579 165:396 166:573
167:468 168:822 169:127 170:861 171:127 172:2
173:1745 174:554 175:432 176:430 177:667 178:1335
180:1182 181:75 182:813 183:288 184:453 185:1
186:2230 187:1044 188:1212 189:1792 190:5540 192:6003
193:5537 194:4644 195:3588 196:1267 197:130 198:3653
199:4528 200:5804 201:1931 202:8529 203:8599 204:4325
205:2492 206:2747 207:2797 208:4055 209:3614 210:2744
211:1477 212:2018 213:1907 214:836 215:102 216:5117
217:1536 218:543 219:323 220:1228 221:556 222:322
223:332
End of report
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