Routing Table Report 04:00 +10GMT Fri 20 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 406525
Prefixes after maximum aggregation: 172617
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 197429
Total ASes present in the Internet Routing Table: 40755
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33077
Origin ASes announcing only one prefix: 15616
Transit ASes present in the Internet Routing Table: 5451
Transit-only ASes present in the Internet Routing Table: 138
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: 392
Unregistered ASNs in the Routing Table: 130
Number of 32-bit ASNs allocated by the RIRs: 2603
Number of 32-bit ASNs visible in the Routing Table: 2227
Prefixes from 32-bit ASNs in the Routing Table: 5580
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2537757392
Equivalent to 151 /8s, 67 /16s and 26 /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: 92.3
Total number of prefixes smaller than registry allocations: 173258
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99656
Total APNIC prefixes after maximum aggregation: 32267
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 96135
Unique aggregates announced from the APNIC address blocks: 39657
APNIC Region origin ASes present in the Internet Routing Table: 4683
APNIC Prefixes per ASN: 20.53
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 729
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: 185
Number of APNIC addresses announced to Internet: 643803744
Equivalent to 38 /8s, 95 /16s and 170 /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: 149865
Total ARIN prefixes after maximum aggregation: 76262
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 121094
Unique aggregates announced from the ARIN address blocks: 50343
ARIN Region origin ASes present in the Internet Routing Table: 15051
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5738
ARIN Region transit ASes present in the Internet Routing Table: 1589
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: 807233728
Equivalent to 48 /8s, 29 /16s and 104 /24s
Percentage of available ARIN address space announced: 64.2
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: 101454
Total RIPE prefixes after maximum aggregation: 53628
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93369
Unique aggregates announced from the RIPE address blocks: 58151
RIPE Region origin ASes present in the Internet Routing Table: 16496
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8038
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: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1496
Number of RIPE addresses announced to Internet: 509623432
Equivalent to 30 /8s, 96 /16s and 60 /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: 40705
Total LACNIC prefixes after maximum aggregation: 8261
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 40552
Unique aggregates announced from the LACNIC address blocks: 20219
LACNIC Region origin ASes present in the Internet Routing Table: 1586
LACNIC Prefixes per ASN: 25.57
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 298
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 524
Number of LACNIC addresses announced to Internet: 99307912
Equivalent to 5 /8s, 235 /16s and 81 /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: 9089
Total AfriNIC prefixes after maximum aggregation: 2131
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 7138
Unique aggregates announced from the AfriNIC address blocks: 2188
AfriNIC Region origin ASes present in the Internet Routing Table: 535
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 168
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: 31791872
Equivalent to 1 /8s, 229 /16s and 27 /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 1676 301 87 TPG Internet Pty Ltd
4755 1587 388 166 TATA Communications formerly
9583 1250 96 543 Sify Limited
9829 1249 1069 30 BSNL National Internet Backbo
7552 1170 1062 11 Vietel Corporation
4808 1105 2049 318 CNCGROUP IP network: China169
24560 1024 385 167 Bharti Airtel Ltd., Telemedia
18101 946 131 159 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 3427 3807 195 bellsouth.net, inc.
7029 3369 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1903 680 130 PaeTec Communications, Inc.
20115 1640 1565 619 Charter Communications
4323 1601 1044 381 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1411 258 763 Mediacom Communications Corp
7018 1260 9775 820 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 1799 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
34984 679 188 175 BILISIM TELEKOM
31148 678 37 9 FreeNet ISP
6830 657 2215 426 UPC Distribution Services
20940 648 206 500 Akamai Technologies European
12479 647 666 63 Uni2 Autonomous System
8551 572 360 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 1809 327 176 TVCABLE BOGOTA
28573 1781 1107 59 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1491 3018 350 UniNet S.A. de C.V.
7303 1361 829 190 Telecom Argentina Stet-France
26615 902 681 33 Tim Brasil S.A.
27947 688 74 98 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 1315 958 13 TEDATA
24863 842 274 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 180 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 3369 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 1809 327 176 TVCABLE BOGOTA
17974 1800 503 63 PT TELEKOMUNIKASI INDONESIA
8402 1799 544 16 Corbina telecom
28573 1781 1107 59 NET Servicos de Comunicao S.A
7545 1676 301 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
7029 3369 3212 Windstream Communications Inc
18566 2091 1912 Covad Communications
8402 1799 1783 Corbina telecom
1785 1903 1773 PaeTec Communications, Inc.
17974 1800 1737 PT TELEKOMUNIKASI INDONESIA
28573 1781 1722 NET Servicos de Comunicao S.A
10620 1809 1633 TVCABLE BOGOTA
7545 1676 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
37.247.48.0/21 34971 Prometeus di Daniela Agro
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 /14:829 /15:1483 /16:12215 /17:6270 /18:10538
/19:20624 /20:28933 /21:29942 /22:40548 /23:37853 /24:212784
/25:1195 /26:1426 /27:788 /28:167 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3027 3369 Windstream Communications Inc
6389 2145 3427 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1776 1799 Corbina telecom
10620 1695 1809 TVCABLE BOGOTA
30036 1357 1411 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1117 1315 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 2:756 4:14 6:3 8:402 12:2009
13:1 14:606 15:12 16:3 17:7 20:22
23:166 24:1770 27:1261 31:979 32:57 33:2
34:2 36:8 37:365 38:800 40:120 41:3203
42:135 44:3 46:1492 47:3 49:384 50:529
52:13 54:7 55:9 56:3 57:31 58:960
59:518 60:281 61:1266 62:977 63:1993 64:4157
65:2252 66:4493 67:2021 68:1167 69:3188 70:906
71:487 72:1819 74:2597 75:494 76:318 77:943
78:1010 79:485 80:1211 81:902 82:667 83:549
84:474 85:1207 86:405 87:922 88:345 89:1618
90:291 91:4733 92:525 93:1407 94:1470 95:1167
96:360 97:317 98:900 99:37 100:7 101:172
103:1006 106:102 107:188 108:232 109:1286 110:755
111:924 112:455 113:593 114:641 115:879 116:907
117:717 118:906 119:1230 120:353 121:798 122:1671
123:1079 124:1355 125:1265 128:542 129:193 130:254
131:592 132:179 133:22 134:243 135:62 136:212
137:177 138:355 139:147 140:491 141:246 142:386
143:411 144:526 145:69 146:490 147:292 148:766
149:295 150:159 151:175 152:463 153:172 154:8
155:430 156:216 157:380 158:176 159:523 160:336
161:260 162:350 163:188 164:571 165:391 166:573
167:463 168:822 169:127 170:861 171:127 172:2
173:1745 174:577 175:432 176:429 177:668 178:1335
180:1181 181:73 182:805 183:287 184:449 185:1
186:2204 187:1042 188:1183 189:1783 190:5510 192:6001
193:5529 194:4638 195:3586 196:1295 197:131 198:3655
199:4515 200:5807 201:1929 202:8511 203:8583 204:4329
205:2493 206:2752 207:2794 208:4057 209:3610 210:2758
211:1476 212:2013 213:1907 214:832 215:104 216:5109
217:1540 218:543 219:344 220:1229 221:555 222:323
223:336
End of report
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