Routing Table Report 04:00 +10GMT Fri 02 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 399150
Prefixes after maximum aggregation: 170318
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 193788
Total ASes present in the Internet Routing Table: 40250
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32799
Origin ASes announcing only one prefix: 15512
Transit ASes present in the Internet Routing Table: 5423
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 332
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 2303
Number of 32-bit ASNs visible in the Routing Table: 2028
Prefixes from 32-bit ASNs in the Routing Table: 4876
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 411
Number of addresses announced to Internet: 2523039664
Equivalent to 150 /8s, 98 /16s and 135 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169651
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98082
Total APNIC prefixes after maximum aggregation: 31822
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94437
Unique aggregates announced from the APNIC address blocks: 39285
APNIC Region origin ASes present in the Internet Routing Table: 4664
APNIC Prefixes per ASN: 20.25
APNIC Region origin ASes announcing only one prefix: 1236
APNIC Region transit ASes present in the Internet Routing Table: 744
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 157
Number of APNIC addresses announced to Internet: 641139552
Equivalent to 38 /8s, 55 /16s and 3 /24s
Percentage of available APNIC address space announced: 81.3
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: 148574
Total ARIN prefixes after maximum aggregation: 75473
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120260
Unique aggregates announced from the ARIN address blocks: 49642
ARIN Region origin ASes present in the Internet Routing Table: 14922
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5681
ARIN Region transit ASes present in the Internet Routing Table: 1574
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: 15
Number of ARIN addresses announced to Internet: 805430784
Equivalent to 48 /8s, 1 /16s and 230 /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: 99814
Total RIPE prefixes after maximum aggregation: 52738
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 91399
Unique aggregates announced from the RIPE address blocks: 56692
RIPE Region origin ASes present in the Internet Routing Table: 16336
RIPE Prefixes per ASN: 5.59
RIPE Region origin ASes announcing only one prefix: 7991
RIPE Region transit ASes present in the Internet Routing Table: 2621
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1387
Number of RIPE addresses announced to Internet: 501135880
Equivalent to 29 /8s, 222 /16s and 186 /24s
Percentage of available RIPE address space announced: 80.7
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: 38803
Total LACNIC prefixes after maximum aggregation: 8086
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38505
Unique aggregates announced from the LACNIC address blocks: 19609
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 24.45
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 465
Number of LACNIC addresses announced to Internet: 97628584
Equivalent to 5 /8s, 209 /16s and 177 /24s
Percentage of available LACNIC address space announced: 64.7
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: 8816
Total AfriNIC prefixes after maximum aggregation: 2096
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6833
Unique aggregates announced from the AfriNIC address blocks: 2104
AfriNIC Region origin ASes present in the Internet Routing Table: 516
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 31542272
Equivalent to 1 /8s, 225 /16s and 76 /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 2485 11107 991 Korea Telecom (KIX)
17974 1731 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1648 303 88 TPG Internet Pty Ltd
4755 1559 385 157 TATA Communications formerly
9829 1181 997 29 BSNL National Internet Backbo
7552 1154 1062 11 Vietel Corporation
4808 1145 2102 317 CNCGROUP IP network: China169
9583 1131 83 481 Sify Limited
24560 1011 385 167 Bharti Airtel Ltd., Telemedia
18101 949 130 155 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 198 bellsouth.net, inc.
7029 3417 1014 159 Windstream Communications Inc
18566 2090 382 177 Covad Communications
1785 1874 680 127 PaeTec Communications, Inc.
20115 1631 1550 632 Charter Communications
4323 1610 1059 384 Time Warner Telecom
22773 1538 2910 110 Cox Communications, Inc.
30036 1424 255 737 Mediacom Communications Corp
19262 1391 4703 399 Verizon Global Networks
7018 1281 6962 840 AT&T WorldNet Services
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 1803 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 LDCOM NETWORKS
34984 657 188 171 BILISIM TELEKOM
6830 642 1927 413 UPC Distribution Services
20940 632 203 481 Akamai Technologies European
12479 610 644 55 Uni2 Autonomous System
8551 599 360 81 Bezeq International
31148 540 37 9 FreeNet ISP
3320 531 8441 397 Deutsche Telekom AG
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 1756 325 174 TVCABLE BOGOTA
28573 1649 1079 82 NET Servicos de Comunicao S.A
8151 1482 3012 347 UniNet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 894 672 33 Tim Brasil S.A.
27947 666 68 109 Telconet S.A
11172 634 91 72 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
6503 576 418 66 AVANTEL, S.A.
3816 561 240 89 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 1244 958 13 TEDATA
24863 834 274 37 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 211 16 10 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 169 12 16 Starcomms Nigeria Limited
16637 158 657 79 MTN Network Solutions
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 198 bellsouth.net, inc.
7029 3417 1014 159 Windstream Communications Inc
4766 2485 11107 991 Korea Telecom (KIX)
18566 2090 382 177 Covad Communications
1785 1874 680 127 PaeTec Communications, Inc.
8402 1803 480 15 Corbina telecom
10620 1756 325 174 TVCABLE BOGOTA
17974 1731 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1649 1079 82 NET Servicos de Comunicao S.A
7545 1648 303 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 3417 3258 Windstream Communications Inc
18566 2090 1913 Covad Communications
8402 1803 1788 Corbina telecom
1785 1874 1747 PaeTec Communications, Inc.
17974 1731 1694 PT TELEKOMUNIKASI INDONESIA
10620 1756 1582 TVCABLE BOGOTA
28573 1649 1567 NET Servicos de Comunicao S.A
7545 1648 1560 TPG Internet Pty Ltd
4766 2485 1494 Korea Telecom (KIX)
22773 1538 1428 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
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
23.27.0.0/20 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /14:816 /15:1473 /16:12169 /17:6230 /18:10402
/19:20473 /20:28489 /21:29311 /22:39763 /23:37074 /24:208438
/25:1201 /26:1440 /27:782 /28:167 /29:58 /30:14
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3072 3417 Windstream Communications Inc
6389 2105 3431 bellsouth.net, inc.
18566 2039 2090 Covad Communications
8402 1782 1803 Corbina telecom
10620 1653 1756 TVCABLE BOGOTA
30036 1374 1424 Mediacom Communications Corp
11492 1124 1161 Cable One
1785 1064 1874 PaeTec Communications, Inc.
8452 1054 1244 TEDATA
7011 1040 1156 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:523 2:763 4:14 6:3 8:390 12:1965
13:1 14:604 15:11 16:3 17:7 20:8
23:135 24:1728 27:1206 31:984 32:65 33:2
34:2 36:9 37:214 38:779 40:116 41:2989
42:120 44:3 46:1377 47:3 49:333 50:510
52:13 54:4 55:9 56:3 57:38 58:972
59:498 60:287 61:1198 62:979 63:2008 64:4116
65:2284 66:4465 67:2038 68:1163 69:3147 70:909
71:409 72:1790 74:2645 75:470 76:319 77:977
78:967 79:492 80:1213 81:884 82:626 83:540
84:586 85:1156 86:723 87:913 88:334 89:1566
90:284 91:4518 92:515 93:1374 94:1375 95:1118
96:421 97:315 98:819 99:38 100:5 101:148
103:853 106:62 107:166 108:178 109:1529 110:724
111:862 112:435 113:533 114:609 115:790 116:871
117:711 118:903 119:1262 120:364 121:727 122:1619
123:1075 124:1340 125:1323 128:538 129:190 130:263
131:591 132:163 133:21 134:234 135:62 136:212
137:184 138:268 139:143 140:491 141:264 142:391
143:409 144:517 145:69 146:483 147:253 148:724
149:300 150:162 151:198 152:448 153:171 154:7
155:400 156:212 157:370 158:162 159:517 160:322
161:245 162:343 163:187 164:530 165:394 166:559
167:458 168:808 169:148 170:839 171:119 172:4
173:1724 174:600 175:421 176:521 177:534 178:1282
180:1192 181:68 182:746 183:282 184:434 185:1
186:2063 187:839 188:1065 189:1205 190:5445 192:5988
193:5550 194:4349 195:3405 196:1295 197:169 198:3631
199:4424 200:5733 201:1741 202:8386 203:8666 204:4362
205:2446 206:2744 207:2792 208:4058 209:3554 210:2758
211:1478 212:1978 213:1870 214:837 215:101 216:5034
217:1512 218:546 219:333 220:1229 221:563 222:322
223:315
End of report
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