Routing Table Report 04:00 +10GMT Mon 16 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 405832
Prefixes after maximum aggregation: 172450
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196971
Total ASes present in the Internet Routing Table: 40687
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33032
Origin ASes announcing only one prefix: 15590
Transit ASes present in the Internet Routing Table: 5445
Transit-only ASes present in the Internet Routing Table: 139
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: 126
Number of 32-bit ASNs allocated by the RIRs: 2582
Number of 32-bit ASNs visible in the Routing Table: 2210
Prefixes from 32-bit ASNs in the Routing Table: 5477
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2536311248
Equivalent to 151 /8s, 45 /16s and 9 /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: 173043
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99573
Total APNIC prefixes after maximum aggregation: 32302
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 96012
Unique aggregates announced from the APNIC address blocks: 39632
APNIC Region origin ASes present in the Internet Routing Table: 4674
APNIC Prefixes per ASN: 20.54
APNIC Region origin ASes announcing only one prefix: 1235
APNIC Region transit ASes present in the Internet Routing Table: 727
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: 179
Number of APNIC addresses announced to Internet: 643080160
Equivalent to 38 /8s, 84 /16s and 159 /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: 149569
Total ARIN prefixes after maximum aggregation: 76106
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120875
Unique aggregates announced from the ARIN address blocks: 50202
ARIN Region origin ASes present in the Internet Routing Table: 15024
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5718
ARIN Region transit ASes present in the Internet Routing Table: 1583
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807067840
Equivalent to 48 /8s, 26 /16s and 224 /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: 101438
Total RIPE prefixes after maximum aggregation: 53595
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93319
Unique aggregates announced from the RIPE address blocks: 58061
RIPE Region origin ASes present in the Internet Routing Table: 16485
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8034
RIPE Region transit ASes present in the Internet Routing Table: 2635
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: 1490
Number of RIPE addresses announced to Internet: 509336712
Equivalent to 30 /8s, 91 /16s and 220 /24s
Percentage of available RIPE address space announced: 82.1
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
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: 40611
Total LACNIC prefixes after maximum aggregation: 8247
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40432
Unique aggregates announced from the LACNIC address blocks: 20115
LACNIC Region origin ASes present in the Internet Routing Table: 1583
LACNIC Prefixes per ASN: 25.54
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 297
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: 99297160
Equivalent to 5 /8s, 235 /16s and 39 /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: 8992
Total AfriNIC prefixes after maximum aggregation: 2131
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7042
Unique aggregates announced from the AfriNIC address blocks: 2164
AfriNIC Region origin ASes present in the Internet Routing Table: 533
AfriNIC Prefixes per ASN: 13.21
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 120
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: 31669504
Equivalent to 1 /8s, 227 /16s and 61 /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 1799 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1665 301 88 TPG Internet Pty Ltd
4755 1590 388 166 TATA Communications formerly
9583 1249 95 542 Sify Limited
9829 1234 1041 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
4808 1096 2050 316 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd., Telemedia
18101 948 131 160 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 3428 3807 195 bellsouth.net, inc.
7029 3383 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1901 680 130 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1600 1044 380 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1429 261 750 Mediacom Communications Corp
7018 1278 9774 827 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 1727 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 678 188 175 BILISIM TELEKOM
12479 657 661 62 Uni2 Autonomous System
20940 641 204 494 Akamai Technologies European
6830 639 1943 410 UPC Distribution Services
8551 569 360 81 Bezeq International
3320 533 8442 399 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 1803 326 174 TVCABLE BOGOTA
28573 1776 1107 59 NET Servicos de Comunicao S.A
6503 1532 418 65 AVANTEL, S.A.
8151 1483 3020 350 UniNet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Tim Brasil S.A.
27947 688 74 99 Telconet S.A
11172 637 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 1303 958 13 TEDATA
24863 848 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
24835 179 80 8 RAYA Telecom - Egypt
16637 171 666 83 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
33776 160 10 21 Starcomms Nigeria Limited
29571 158 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 3428 3807 195 bellsouth.net, inc.
7029 3383 985 157 Windstream Communications Inc
4766 2488 11113 1009 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1901 680 130 PaeTec Communications, Inc.
10620 1803 326 174 TVCABLE BOGOTA
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1776 1107 59 NET Servicos de Comunicao S.A
8402 1727 544 16 Corbina telecom
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 3383 3226 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1901 1771 PaeTec Communications, Inc.
17974 1799 1736 PT TELEKOMUNIKASI INDONESIA
28573 1776 1717 NET Servicos de Comunicao S.A
8402 1727 1711 Corbina telecom
10620 1803 1629 TVCABLE BOGOTA
7545 1665 1577 TPG Internet Pty Ltd
4766 2488 1479 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
/13:460 /14:832 /15:1479 /16:12202 /17:6274 /18:10525
/19:20617 /20:28859 /21:29847 /22:40502 /23:37833 /24:212371
/25:1197 /26:1422 /27:783 /28:160 /29:58 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3041 3383 Windstream Communications Inc
6389 2146 3428 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1704 1727 Corbina telecom
10620 1695 1803 TVCABLE BOGOTA
30036 1375 1429 Mediacom Communications Corp
6503 1290 1532 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1111 1303 TEDATA
1785 1069 1901 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:726 4:14 6:3 8:402 12:1999
13:1 14:598 15:12 16:3 17:7 20:8
23:159 24:1769 27:1266 31:976 32:57 33:2
34:2 36:8 37:346 38:795 40:120 41:3133
42:134 44:3 46:1471 47:3 49:382 50:534
52:13 54:7 55:9 56:3 57:31 58:959
59:519 60:282 61:1263 62:981 63:1989 64:4161
65:2254 66:4498 67:2026 68:1151 69:3152 70:907
71:476 72:1817 74:2592 75:495 76:318 77:975
78:1005 79:489 80:1218 81:901 82:659 83:540
84:489 85:1208 86:406 87:924 88:351 89:1634
90:297 91:4718 92:522 93:1362 94:1468 95:1144
96:360 97:319 98:903 99:37 100:7 101:173
103:986 106:105 107:185 108:229 109:1310 110:745
111:920 112:453 113:594 114:623 115:872 116:899
117:717 118:901 119:1219 120:349 121:806 122:1672
123:1092 124:1371 125:1265 128:558 129:194 130:253
131:591 132:173 133:21 134:242 135:62 136:210
137:177 138:355 139:147 140:489 141:244 142:387
143:394 144:515 145:69 146:494 147:278 148:763
149:301 150:160 151:176 152:464 153:172 154:7
155:430 156:215 157:379 158:175 159:521 160:335
161:259 162:351 163:190 164:572 165:394 166:571
167:464 168:818 169:127 170:857 171:127 172:2
173:1742 174:586 175:430 176:487 177:654 178:1327
180:1178 181:73 182:796 183:285 184:453 185:1
186:2207 187:1029 188:1191 189:1794 190:5531 192:5998
193:5546 194:4636 195:3580 196:1283 197:121 198:3630
199:4499 200:5802 201:1926 202:8520 203:8596 204:4342
205:2486 206:2732 207:2778 208:4048 209:3585 210:2759
211:1476 212:2004 213:1906 214:832 215:104 216:5089
217:1538 218:543 219:341 220:1226 221:556 222:319
223:334
End of report
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