Routing Table Report 04:00 +10GMT Thu 29 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 403381
Prefixes after maximum aggregation: 171779
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195986
Total ASes present in the Internet Routing Table: 40524
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32945
Origin ASes announcing only one prefix: 15473
Transit ASes present in the Internet Routing Table: 5431
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 503
Unregistered ASNs in the Routing Table: 247
Number of 32-bit ASNs allocated by the RIRs: 2338
Number of 32-bit ASNs visible in the Routing Table: 2148
Prefixes from 32-bit ASNs in the Routing Table: 5228
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1179
Number of addresses announced to Internet: 2528958992
Equivalent to 150 /8s, 188 /16s and 218 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
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: 171222
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99081
Total APNIC prefixes after maximum aggregation: 32098
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 95456
Unique aggregates announced from the APNIC address blocks: 39220
APNIC Region origin ASes present in the Internet Routing Table: 4677
APNIC Prefixes per ASN: 20.41
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 171
Number of APNIC addresses announced to Internet: 642212960
Equivalent to 38 /8s, 71 /16s and 100 /24s
Percentage of available APNIC address space announced: 81.4
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: 149355
Total ARIN prefixes after maximum aggregation: 75821
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120712
Unique aggregates announced from the ARIN address blocks: 49947
ARIN Region origin ASes present in the Internet Routing Table: 14939
ARIN Prefixes per ASN: 8.08
ARIN Region origin ASes announcing only one prefix: 5688
ARIN Region transit ASes present in the Internet Routing Table: 1576
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: 16
Number of ARIN addresses announced to Internet: 805277184
Equivalent to 47 /8s, 255 /16s and 142 /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: 100768
Total RIPE prefixes after maximum aggregation: 53169
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92079
Unique aggregates announced from the RIPE address blocks: 57190
RIPE Region origin ASes present in the Internet Routing Table: 16353
RIPE Prefixes per ASN: 5.63
RIPE Region origin ASes announcing only one prefix: 7954
RIPE Region transit ASes present in the Internet Routing Table: 2630
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1457
Number of RIPE addresses announced to Internet: 502290824
Equivalent to 29 /8s, 240 /16s and 89 /24s
Percentage of available RIPE address space announced: 80.9
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: 40211
Total LACNIC prefixes after maximum aggregation: 8132
LACNIC Deaggregation factor: 4.94
Prefixes being announced from the LACNIC address blocks: 39732
Unique aggregates announced from the LACNIC address blocks: 19724
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 25.29
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 295
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: 499
Number of LACNIC addresses announced to Internet: 98721928
Equivalent to 5 /8s, 226 /16s and 96 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8388
Total AfriNIC prefixes after maximum aggregation: 2330
AfriNIC Deaggregation factor: 3.60
Prefixes being announced from the AfriNIC address blocks: 6451
Unique aggregates announced from the AfriNIC address blocks: 2470
AfriNIC Region origin ASes present in the Internet Routing Table: 525
AfriNIC Prefixes per ASN: 12.29
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 5
Number of AfriNIC addresses announced to Internet: 30574080
Equivalent to 1 /8s, 210 /16s and 134 /24s
Percentage of available AfriNIC address space announced: 45.6
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 2493 11109 992 Korea Telecom (KIX)
17974 1786 503 61 PT TELEKOMUNIKASI INDONESIA
7545 1656 301 86 TPG Internet Pty Ltd
4755 1571 386 158 TATA Communications formerly
9583 1238 95 540 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1177 1062 11 Vietel Corporation
4808 1098 2048 315 CNCGROUP IP network: China169
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
18101 948 130 160 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
7029 3378 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
18566 2092 383 179 Covad Communications
1785 1887 680 129 PaeTec Communications, Inc.
20115 1637 1559 626 Charter Communications
4323 1606 1060 382 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1414 256 744 Mediacom Communications Corp
7018 1281 9775 831 AT&T WorldNet Services
11492 1184 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 1834 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
31148 673 37 9 FreeNet ISP
34984 667 188 174 BILISIM TELEKOM
12479 653 658 57 Uni2 Autonomous System
6830 641 1943 412 UPC Distribution Services
20940 640 204 492 Akamai Technologies European
8551 571 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG
2578 500 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 1808 329 126 TVCABLE BOGOTA
28573 1747 1105 58 NET Servicos de Comunicao S.A
8151 1493 3019 350 UniNet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
6503 1346 418 65 AVANTEL, S.A.
26615 902 700 28 Tim Brasil S.A.
27947 688 74 100 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 561 241 103 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 888 733 227 TEDATA
24863 780 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 190 12 20 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 164 664 82 MTN Network Solutions
29571 159 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 3378 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4766 2493 11109 992 Korea Telecom (KIX)
18566 2092 383 179 Covad Communications
1785 1887 680 129 PaeTec Communications, Inc.
8402 1834 544 16 Corbina telecom
10620 1808 329 126 TVCABLE BOGOTA
17974 1786 503 61 PT TELEKOMUNIKASI INDONESIA
28573 1747 1105 58 NET Servicos de Comunicao S.A
7545 1656 301 86 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 3371 3175 bellsouth.net, inc.
18566 2092 1913 Covad Communications
8402 1834 1818 Corbina telecom
1785 1887 1758 PaeTec Communications, Inc.
17974 1786 1725 PT TELEKOMUNIKASI INDONESIA
28573 1747 1689 NET Servicos de Comunicao S.A
10620 1808 1682 TVCABLE BOGOTA
7545 1656 1570 TPG Internet Pty Ltd
4766 2493 1501 Korea Telecom (KIX)
22773 1552 1441 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
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
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
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
23.28.192.0/18 29737 WideOpenWest LLC
23.29.0.0/20 4323 Time Warner Telecom
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 /12:233
/13:458 /14:832 /15:1479 /16:12188 /17:6255 /18:10446
/19:20585 /20:28849 /21:29732 /22:40249 /23:37435 /24:210759
/25:1219 /26:1459 /27:797 /28:170 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3038 3378 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1811 1834 Corbina telecom
10620 1705 1808 TVCABLE BOGOTA
30036 1359 1414 Mediacom Communications Corp
11492 1147 1184 Cable One
6503 1117 1346 AVANTEL, S.A.
1785 1067 1887 PaeTec Communications, Inc.
7011 1048 1162 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:764 4:14 6:3 8:392 12:1980
13:1 14:603 15:12 16:3 17:7 20:8
23:159 24:1755 27:1255 31:938 32:58 33:2
34:2 36:8 37:302 38:790 40:120 41:2725
42:132 44:3 46:1456 47:3 49:342 50:534
52:12 54:6 55:11 56:3 57:32 58:967
59:494 60:278 61:1203 62:968 63:1995 64:4194
65:2277 66:4505 67:2014 68:1146 69:3184 70:903
71:466 72:1820 74:2596 75:493 76:319 77:961
78:1001 79:500 80:1213 81:898 82:662 83:545
84:517 85:1203 86:408 87:915 88:343 89:1624
90:297 91:4650 92:518 93:1390 94:1459 95:1164
96:375 97:315 98:837 99:37 100:6 101:164
103:915 106:64 107:179 108:213 109:1269 110:757
111:905 112:444 113:563 114:628 115:795 116:910
117:723 118:909 119:1209 120:352 121:696 122:1665
123:1103 124:1363 125:1263 128:566 129:191 130:260
131:596 132:173 133:21 134:243 135:63 136:213
137:189 138:351 139:145 140:494 141:240 142:387
143:413 144:502 145:69 146:487 147:247 148:754
149:298 150:157 151:176 152:459 153:171 154:7
155:430 156:215 157:379 158:171 159:530 160:343
161:249 162:343 163:187 164:547 165:392 166:560
167:464 168:807 169:128 170:845 171:125 172:4
173:1720 174:631 175:434 176:456 177:594 178:1297
180:1155 181:72 182:759 183:277 184:440 185:1
186:2147 187:1004 188:1160 189:1685 190:5527 192:5998
193:5588 194:4615 195:3599 196:1290 197:124 198:3625
199:4476 200:5806 201:1896 202:8464 203:8594 204:4345
205:2470 206:2740 207:2790 208:4050 209:3609 210:2759
211:1474 212:1980 213:1907 214:873 215:107 216:5073
217:1521 218:550 219:327 220:1231 221:560 222:325
223:329
End of report
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