Routing Table Report 04:00 +10GMT Tue 24 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 406532
Prefixes after maximum aggregation: 172808
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 197774
Total ASes present in the Internet Routing Table: 40793
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33097
Origin ASes announcing only one prefix: 15626
Transit ASes present in the Internet Routing Table: 5452
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: 391
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 2620
Number of 32-bit ASNs visible in the Routing Table: 2244
Prefixes from 32-bit ASNs in the Routing Table: 5618
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2538685008
Equivalent to 151 /8s, 81 /16s and 66 /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: 173394
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99322
Total APNIC prefixes after maximum aggregation: 32250
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95795
Unique aggregates announced from the APNIC address blocks: 39854
APNIC Region origin ASes present in the Internet Routing Table: 4687
APNIC Prefixes per ASN: 20.44
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: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 186
Number of APNIC addresses announced to Internet: 644129120
Equivalent to 38 /8s, 100 /16s and 161 /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: 149962
Total ARIN prefixes after maximum aggregation: 76317
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 121189
Unique aggregates announced from the ARIN address blocks: 50380
ARIN Region origin ASes present in the Internet Routing Table: 15053
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5737
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: 807183296
Equivalent to 48 /8s, 28 /16s and 163 /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: 101664
Total RIPE prefixes after maximum aggregation: 53765
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93594
Unique aggregates announced from the RIPE address blocks: 58286
RIPE Region origin ASes present in the Internet Routing Table: 16509
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 8044
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: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1509
Number of RIPE addresses announced to Internet: 510235784
Equivalent to 30 /8s, 105 /16s and 148 /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: 40741
Total LACNIC prefixes after maximum aggregation: 8276
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40583
Unique aggregates announced from the LACNIC address blocks: 20217
LACNIC Region origin ASes present in the Internet Routing Table: 1590
LACNIC Prefixes per ASN: 25.52
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 298
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: 99356936
Equivalent to 5 /8s, 236 /16s and 17 /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: 9051
Total AfriNIC prefixes after maximum aggregation: 2131
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 7109
Unique aggregates announced from the AfriNIC address blocks: 2192
AfriNIC Region origin ASes present in the Internet Routing Table: 535
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31784192
Equivalent to 1 /8s, 228 /16s and 253 /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 1800 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1677 301 88 TPG Internet Pty Ltd
4755 1572 385 155 TATA Communications formerly
9829 1249 1069 30 BSNL National Internet Backbo
7552 1169 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 950 291 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 1603 1044 382 Time Warner Telecom
22773 1577 2910 112 Cox Communications, Inc.
30036 1413 258 764 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 1793 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 655 2215 426 UPC Distribution Services
20940 650 206 501 Akamai Technologies European
12479 647 666 63 Uni2 Autonomous System
8551 573 360 81 Bezeq International
3320 531 8441 397 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 1810 327 176 TVCABLE BOGOTA
28573 1768 1107 59 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1487 3016 342 UniNet S.A. de C.V.
7303 1363 829 188 Telecom Argentina Stet-France
26615 902 697 32 Tim Brasil S.A.
27947 683 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 1295 958 13 TEDATA
24863 840 274 35 LINKdotNET AS number
6713 493 649 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 1800 503 63 PT TELEKOMUNIKASI INDONESIA
8402 1793 544 16 Corbina telecom
28573 1768 1107 59 NET Servicos de Comunicao S.A
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
8402 1793 1777 Corbina telecom
1785 1903 1773 PaeTec Communications, Inc.
17974 1800 1737 PT TELEKOMUNIKASI INDONESIA
28573 1768 1709 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 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
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 /14:829 /15:1483 /16:12232 /17:6246 /18:10529
/19:20616 /20:28967 /21:29981 /22:40535 /23:37888 /24:212712
/25:1200 /26:1424 /27:788 /28:165 /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 1770 1793 Corbina telecom
10620 1695 1810 TVCABLE BOGOTA
30036 1359 1413 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1095 1295 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)
----------------------------------------------
1:536 2:762 4:14 6:3 8:403 12:2010
13:1 14:608 15:12 16:3 17:7 20:22
23:167 24:1771 27:1272 31:951 32:57 33:2
34:2 36:8 37:401 38:798 40:120 41:3179
42:134 44:3 46:1489 47:3 49:400 50:533
52:13 54:8 55:7 56:3 57:31 58:960
59:492 60:281 61:1196 62:976 63:1991 64:4167
65:2253 66:4496 67:2035 68:1167 69:3195 70:902
71:486 72:1819 74:2597 75:494 76:319 77:941
78:1011 79:484 80:1204 81:897 82:666 83:549
84:477 85:1212 86:414 87:924 88:345 89:1621
90:291 91:4746 92:524 93:1396 94:1502 95:1164
96:360 97:315 98:894 99:37 100:7 101:174
103:1016 106:86 107:190 108:235 109:1287 110:756
111:917 112:455 113:598 114:637 115:807 116:908
117:723 118:910 119:1231 120:355 121:685 122:1671
123:1084 124:1364 125:1249 128:546 129:194 130:214
131:591 132:180 133:22 134:243 135:62 136:212
137:177 138:355 139:148 140:492 141:245 142:402
143:403 144:527 145:69 146:503 147:279 148:771
149:304 150:158 151:175 152:464 153:171 154:9
155:398 156:215 157:380 158:176 159:528 160:337
161:261 162:351 163:190 164:580 165:397 166:573
167:469 168:820 169:128 170:861 171:127 172:2
173:1746 174:561 175:432 176:433 177:676 178:1333
180:1191 181:75 182:817 183:288 184:453 185:1
186:2226 187:1038 188:1215 189:1790 190:5514 192:6004
193:5540 194:4648 195:3597 196:1287 197:131 198:3653
199:4531 200:5809 201:1931 202:8533 203:8600 204:4326
205:2492 206:2749 207:2799 208:4058 209:3617 210:2741
211:1476 212:2007 213:1907 214:841 215:104 216:5119
217:1538 218:543 219:317 220:1228 221:556 222:322
223:332
End of report
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