Routing Table Report 04:00 +10GMT Wed 11 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 405379
Prefixes after maximum aggregation: 172166
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196444
Total ASes present in the Internet Routing Table: 40668
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33027
Origin ASes announcing only one prefix: 15457
Transit ASes present in the Internet Routing Table: 5443
Transit-only ASes present in the Internet Routing Table: 146
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: 691
Unregistered ASNs in the Routing Table: 307
Number of 32-bit ASNs allocated by the RIRs: 2348
Number of 32-bit ASNs visible in the Routing Table: 2198
Prefixes from 32-bit ASNs in the Routing Table: 5401
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1472
Number of addresses announced to Internet: 2534226768
Equivalent to 151 /8s, 13 /16s and 59 /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: 172223
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99487
Total APNIC prefixes after maximum aggregation: 32232
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 95877
Unique aggregates announced from the APNIC address blocks: 39412
APNIC Region origin ASes present in the Internet Routing Table: 4680
APNIC Prefixes per ASN: 20.49
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 733
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: 177
Number of APNIC addresses announced to Internet: 643166560
Equivalent to 38 /8s, 85 /16s and 241 /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: 149405
Total ARIN prefixes after maximum aggregation: 75920
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120676
Unique aggregates announced from the ARIN address blocks: 50007
ARIN Region origin ASes present in the Internet Routing Table: 14952
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5676
ARIN Region transit ASes present in the Internet Routing Table: 1567
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: 805845952
Equivalent to 48 /8s, 8 /16s and 59 /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: 101089
Total RIPE prefixes after maximum aggregation: 53351
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 92257
Unique aggregates announced from the RIPE address blocks: 57233
RIPE Region origin ASes present in the Internet Routing Table: 16365
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7949
RIPE Region transit ASes present in the Internet Routing Table: 2632
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: 1481
Number of RIPE addresses announced to Internet: 502382856
Equivalent to 29 /8s, 241 /16s and 193 /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: 40507
Total LACNIC prefixes after maximum aggregation: 8236
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40096
Unique aggregates announced from the LACNIC address blocks: 19777
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 25.46
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 293
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: 98925960
Equivalent to 5 /8s, 229 /16s and 125 /24s
Percentage of available LACNIC address space announced: 65.5
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: 9004
Total AfriNIC prefixes after maximum aggregation: 2125
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 7041
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31538176
Equivalent to 1 /8s, 225 /16s and 60 /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 1631 301 88 TPG Internet Pty Ltd
4755 1590 388 166 TATA Communications formerly
9583 1248 95 542 Sify Limited
9829 1234 1041 30 BSNL National Internet Backbo
7552 1172 1062 11 Vietel Corporation
4808 1105 2050 316 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 2092 383 179 Covad Communications
1785 1893 680 129 PaeTec Communications, Inc.
20115 1640 1563 618 Charter Communications
4323 1596 1043 378 Time Warner Telecom
22773 1574 2910 111 Cox Communications, Inc.
30036 1442 263 761 Mediacom Communications Corp
7018 1276 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 1841 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 654 657 60 Uni2 Autonomous System
6830 639 1943 410 UPC Distribution Services
20940 632 200 487 Akamai Technologies European
8551 576 360 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 1795 327 163 TVCABLE BOGOTA
28573 1774 1106 60 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1497 3018 349 UniNet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 697 32 Tim Brasil S.A.
27947 685 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 564 240 107 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 1312 958 13 TEDATA
24863 848 274 35 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 187 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
16637 173 666 83 MTN Network Solutions
15706 168 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 2092 383 179 Covad Communications
1785 1893 680 129 PaeTec Communications, Inc.
8402 1841 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1786 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1774 1106 60 NET Servicos de Comunicao S.A
20115 1640 1563 618 Charter Communications
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 2092 1913 Covad Communications
8402 1841 1825 Corbina telecom
1785 1893 1764 PaeTec Communications, Inc.
17974 1786 1723 PT TELEKOMUNIKASI INDONESIA
28573 1774 1714 NET Servicos de Comunicao S.A
10620 1795 1632 TVCABLE BOGOTA
7545 1631 1543 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
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
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 /15:1476 /16:12185 /17:6284 /18:10502
/19:20620 /20:28853 /21:29821 /22:40492 /23:37745 /24:212087
/25:1185 /26:1425 /27:783 /28:162 /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 2041 2092 Covad Communications
8402 1818 1841 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1382 1442 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1120 1312 TEDATA
1785 1067 1893 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 2:752 4:14 6:3 8:396 12:2000
13:1 14:603 15:12 16:3 17:7 20:8
23:159 24:1769 27:1268 31:973 32:58 33:2
34:2 36:8 37:325 38:793 40:120 41:3128
42:133 44:3 46:1467 47:3 49:350 50:532
52:13 54:7 55:9 56:3 57:31 58:962
59:518 60:280 61:1267 62:978 63:1992 64:4162
65:2260 66:4494 67:2035 68:1148 69:3156 70:908
71:470 72:1817 74:2599 75:495 76:316 77:967
78:1006 79:494 80:1202 81:901 82:665 83:547
84:491 85:1206 86:405 87:919 88:351 89:1635
90:297 91:4698 92:520 93:1443 94:1470 95:1140
96:360 97:319 98:890 99:37 100:7 101:168
103:970 106:105 107:182 108:223 109:1301 110:751
111:899 112:448 113:593 114:624 115:853 116:899
117:723 118:903 119:1206 120:343 121:808 122:1668
123:1107 124:1371 125:1255 128:560 129:189 130:254
131:593 132:172 133:21 134:244 135:62 136:212
137:176 138:354 139:146 140:493 141:245 142:386
143:399 144:520 145:66 146:487 147:274 148:765
149:299 150:160 151:176 152:462 153:172 154:7
155:428 156:216 157:379 158:175 159:523 160:342
161:259 162:350 163:189 164:572 165:388 166:562
167:464 168:818 169:127 170:845 171:127 172:4
173:1726 174:577 175:427 176:478 177:658 178:1318
180:1176 181:73 182:790 183:286 184:452 185:1
186:2187 187:1006 188:1188 189:1796 190:5445 192:5993
193:5532 194:4610 195:3574 196:1290 197:126 198:3622
199:4484 200:5815 201:1918 202:8505 203:8596 204:4344
205:2474 206:2746 207:2782 208:4049 209:3589 210:2760
211:1477 212:1994 213:1907 214:888 215:109 216:5085
217:1540 218:543 219:344 220:1225 221:555 222:321
223:330
End of report
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