Routing Table Report 04:00 +10GMT Thu 12 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 405556
Prefixes after maximum aggregation: 172275
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196591
Total ASes present in the Internet Routing Table: 40683
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33043
Origin ASes announcing only one prefix: 15450
Transit ASes present in the Internet Routing Table: 5440
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 72
Max AS path prepend of ASN ( 9902) 61
Prefixes from unregistered ASNs in the Routing Table: 710
Unregistered ASNs in the Routing Table: 318
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 2200
Prefixes from 32-bit ASNs in the Routing Table: 5411
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1528
Number of addresses announced to Internet: 2535104080
Equivalent to 151 /8s, 26 /16s and 158 /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: 92.1
Total number of prefixes smaller than registry allocations: 172267
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99477
Total APNIC prefixes after maximum aggregation: 32223
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 95897
Unique aggregates announced from the APNIC address blocks: 39465
APNIC Region origin ASes present in the Internet Routing Table: 4679
APNIC Prefixes per ASN: 20.50
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 731
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: 178
Number of APNIC addresses announced to Internet: 643152224
Equivalent to 38 /8s, 85 /16s and 185 /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: 149505
Total ARIN prefixes after maximum aggregation: 75985
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120706
Unique aggregates announced from the ARIN address blocks: 50003
ARIN Region origin ASes present in the Internet Routing Table: 14958
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1572
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: 17
Number of ARIN addresses announced to Internet: 805714112
Equivalent to 48 /8s, 6 /16s and 56 /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: 101185
Total RIPE prefixes after maximum aggregation: 53421
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 92307
Unique aggregates announced from the RIPE address blocks: 57280
RIPE Region origin ASes present in the Internet Routing Table: 16364
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7940
RIPE Region transit ASes present in the Internet Routing Table: 2628
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1482
Number of RIPE addresses announced to Internet: 502416904
Equivalent to 29 /8s, 242 /16s and 70 /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: 40504
Total LACNIC prefixes after maximum aggregation: 8203
LACNIC Deaggregation factor: 4.94
Prefixes being announced from the LACNIC address blocks: 40082
Unique aggregates announced from the LACNIC address blocks: 19780
LACNIC Region origin ASes present in the Internet Routing Table: 1576
LACNIC Prefixes per ASN: 25.43
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 294
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: 518
Number of LACNIC addresses announced to Internet: 99030408
Equivalent to 5 /8s, 231 /16s and 21 /24s
Percentage of available LACNIC address space announced: 65.6
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: 8969
Total AfriNIC prefixes after maximum aggregation: 2128
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 7007
Unique aggregates announced from the AfriNIC address blocks: 2146
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31526144
Equivalent to 1 /8s, 225 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 47.0
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 2487 11113 1009 Korea Telecom (KIX)
17974 1786 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1660 301 87 TPG Internet Pty Ltd
4755 1590 388 166 TATA Communications formerly
9583 1249 95 542 Sify Limited
9829 1232 1041 30 BSNL National Internet Backbo
7552 1169 1062 11 Vietel Corporation
4808 1104 2050 317 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd., Telemedia
18101 945 131 159 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 3431 3807 195 bellsouth.net, inc.
7029 3383 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1894 680 129 PaeTec Communications, Inc.
20115 1640 1563 618 Charter Communications
4323 1597 1043 379 Time Warner Telecom
22773 1575 2910 111 Cox Communications, Inc.
30036 1443 263 758 Mediacom Communications Corp
7018 1277 9774 827 AT&T WorldNet Services
11492 1185 216 365 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 1838 544 16 Corbina telecom
2118 1279 97 14 EUnet/RELCOM Autonomous Syste
34984 680 188 176 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 653 657 60 Uni2 Autonomous System
20940 643 204 495 Akamai Technologies European
6830 639 1943 410 UPC Distribution Services
8551 574 360 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 1811 327 162 TVCABLE BOGOTA
28573 1764 1106 60 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1495 3018 347 UniNet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 697 32 Tim Brasil S.A.
27947 686 74 99 Telconet S.A
11172 637 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 571 242 100 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 1311 958 13 TEDATA
24863 846 274 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 180 11 23 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
16637 173 666 83 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
29571 161 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
6389 3431 3807 195 bellsouth.net, inc.
7029 3383 985 157 Windstream Communications Inc
4766 2487 11113 1009 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1894 680 129 PaeTec Communications, Inc.
8402 1838 544 16 Corbina telecom
10620 1811 327 162 TVCABLE BOGOTA
17974 1786 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1764 1106 60 NET Servicos de Comunicao S.A
7545 1660 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 3383 3226 Windstream Communications Inc
18566 2091 1912 Covad Communications
8402 1838 1822 Corbina telecom
1785 1894 1765 PaeTec Communications, Inc.
17974 1786 1723 PT TELEKOMUNIKASI INDONESIA
28573 1764 1704 NET Servicos de Comunicao S.A
10620 1811 1649 TVCABLE BOGOTA
7545 1660 1573 TPG Internet Pty Ltd
4766 2487 1478 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
54601 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54603 UNALLOCATED 8.18.203.0/24 14743 Internap Network Ser
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
54475 UNALLOCATED 8.34.8.0/24 36295 Brevard Wireless
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
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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /14:831 /15:1477 /16:12181 /17:6276 /18:10510
/19:20607 /20:28857 /21:29851 /22:40497 /23:37771 /24:212208
/25:1190 /26:1424 /27:785 /28:163 /29:58 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3043 3383 Windstream Communications Inc
6389 2149 3431 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1815 1838 Corbina telecom
10620 1703 1811 TVCABLE BOGOTA
30036 1383 1443 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1119 1311 TEDATA
1785 1067 1894 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:532 2:753 4:14 6:3 8:397 12:2000
13:1 14:603 15:12 16:3 17:7 20:8
23:158 24:1769 27:1268 31:971 32:58 33:2
34:2 36:8 37:341 38:794 40:120 41:3115
42:131 44:3 46:1465 47:3 49:383 50:535
52:13 54:7 55:8 56:3 57:31 58:959
59:519 60:281 61:1268 62:980 63:1992 64:4159
65:2255 66:4498 67:2036 68:1151 69:3157 70:908
71:471 72:1817 74:2597 75:496 76:316 77:964
78:1002 79:495 80:1203 81:900 82:659 83:541
84:492 85:1207 86:403 87:923 88:351 89:1628
90:297 91:4705 92:520 93:1439 94:1469 95:1147
96:360 97:319 98:897 99:37 100:7 101:168
103:973 106:105 107:184 108:224 109:1306 110:755
111:919 112:448 113:575 114:612 115:854 116:901
117:723 118:900 119:1209 120:343 121:806 122:1668
123:1105 124:1371 125:1256 128:560 129:191 130:254
131:598 132:173 133:21 134:244 135:62 136:212
137:177 138:354 139:147 140:493 141:245 142:388
143:403 144:520 145:69 146:488 147:276 148:763
149:299 150:160 151:176 152:464 153:172 154:7
155:430 156:216 157:379 158:175 159:522 160:342
161:259 162:350 163:190 164:572 165:393 166:571
167:464 168:812 169:126 170:846 171:127 172:4
173:1723 174:576 175:428 176:480 177:650 178:1321
180:1151 181:73 182:792 183:285 184:455 185:1
186:2182 187:995 188:1188 189:1788 190:5496 192:5998
193:5535 194:4611 195:3576 196:1292 197:127 198:3625
199:4494 200:5812 201:1909 202:8517 203:8592 204:4346
205:2482 206:2746 207:2783 208:4047 209:3587 210:2762
211:1478 212:2003 213:1907 214:896 215:109 216:5086
217:1538 218:542 219:345 220:1225 221:556 222:323
223:330
End of report
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