Routing Table Report 04:00 +10GMT Thu 05 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 404343
Prefixes after maximum aggregation: 171899
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196095
Total ASes present in the Internet Routing Table: 40587
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 32978
Origin ASes announcing only one prefix: 15482
Transit ASes present in the Internet Routing Table: 5438
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 40
Max AS path prepend of ASN (22394) 35
Prefixes from unregistered ASNs in the Routing Table: 589
Unregistered ASNs in the Routing Table: 283
Number of 32-bit ASNs allocated by the RIRs: 2344
Number of 32-bit ASNs visible in the Routing Table: 2171
Prefixes from 32-bit ASNs in the Routing Table: 5350
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1358
Number of addresses announced to Internet: 2532011856
Equivalent to 150 /8s, 235 /16s and 111 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
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: 171745
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99044
Total APNIC prefixes after maximum aggregation: 32172
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95439
Unique aggregates announced from the APNIC address blocks: 39286
APNIC Region origin ASes present in the Internet Routing Table: 4679
APNIC Prefixes per ASN: 20.40
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 734
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: 168
Number of APNIC addresses announced to Internet: 642202720
Equivalent to 38 /8s, 71 /16s and 60 /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: 149328
Total ARIN prefixes after maximum aggregation: 75842
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120700
Unique aggregates announced from the ARIN address blocks: 49981
ARIN Region origin ASes present in the Internet Routing Table: 14945
ARIN Prefixes per ASN: 8.08
ARIN Region origin ASes announcing only one prefix: 5693
ARIN Region transit ASes present in the Internet Routing Table: 1568
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 40
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805385408
Equivalent to 48 /8s, 1 /16s and 52 /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: 100966
Total RIPE prefixes after maximum aggregation: 53273
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92202
Unique aggregates announced from the RIPE address blocks: 57263
RIPE Region origin ASes present in the Internet Routing Table: 16356
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7951
RIPE Region transit ASes present in the Internet Routing Table: 2635
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: 1470
Number of RIPE addresses announced to Internet: 502206472
Equivalent to 29 /8s, 239 /16s and 16 /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: 40314
Total LACNIC prefixes after maximum aggregation: 8213
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39876
Unique aggregates announced from the LACNIC address blocks: 19769
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 25.38
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 296
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: 511
Number of LACNIC addresses announced to Internet: 98790280
Equivalent to 5 /8s, 227 /16s and 107 /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: 8905
Total AfriNIC prefixes after maximum aggregation: 2126
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6962
Unique aggregates announced from the AfriNIC address blocks: 2149
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 5
Number of AfriNIC addresses announced to Internet: 31500800
Equivalent to 1 /8s, 224 /16s and 170 /24s
Percentage of available AfriNIC address space announced: 46.9
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 2494 11109 993 Korea Telecom (KIX)
17974 1781 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1661 301 88 TPG Internet Pty Ltd
4755 1574 386 157 TATA Communications formerly
9583 1237 94 541 Sify Limited
9829 1234 1041 30 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
4808 1103 2050 316 CNCGROUP IP network: China169
24560 1022 385 168 Bharti Airtel Ltd., Telemedia
18101 947 131 159 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 3432 3807 196 bellsouth.net, inc.
7029 3382 990 156 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1891 680 129 PaeTec Communications, Inc.
20115 1636 1561 619 Charter Communications
4323 1599 1060 381 Time Warner Telecom
22773 1566 2910 111 Cox Communications, Inc.
30036 1456 264 741 Mediacom Communications Corp
7018 1278 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 1806 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 678 37 9 FreeNet ISP
34984 675 188 172 BILISIM TELEKOM
12479 656 658 57 Uni2 Autonomous System
20940 651 206 500 Akamai Technologies European
6830 641 1943 412 UPC Distribution Services
8551 575 360 81 Bezeq International
3320 532 8442 398 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 1749 1105 61 NET Servicos de Comunicao S.A
6503 1500 418 64 AVANTEL, S.A.
8151 1484 3018 348 UniNet S.A. de C.V.
7303 1351 827 189 Telecom Argentina Stet-France
26615 865 684 29 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 569 242 100 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 1293 958 13 TEDATA
24863 849 274 35 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 180 11 23 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 160 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 3432 3807 196 bellsouth.net, inc.
7029 3382 990 156 Windstream Communications Inc
4766 2494 11109 993 Korea Telecom (KIX)
18566 2092 383 179 Covad Communications
1785 1891 680 129 PaeTec Communications, Inc.
8402 1806 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1781 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1749 1105 61 NET Servicos de Comunicao S.A
7545 1661 301 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 3382 3226 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1806 1790 Corbina telecom
1785 1891 1762 PaeTec Communications, Inc.
17974 1781 1718 PT TELEKOMUNIKASI INDONESIA
28573 1749 1688 NET Servicos de Comunicao S.A
10620 1795 1632 TVCABLE BOGOTA
7545 1661 1573 TPG Internet Pty Ltd
4766 2494 1501 Korea Telecom (KIX)
22773 1566 1455 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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
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
/13:457 /14:832 /15:1483 /16:12171 /17:6279 /18:10497
/19:20607 /20:28803 /21:29788 /22:40360 /23:37584 /24:211448
/25:1187 /26:1427 /27:786 /28:164 /29:59 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3041 3382 Windstream Communications Inc
6389 2149 3432 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1783 1806 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1397 1456 Mediacom Communications Corp
6503 1263 1500 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1102 1293 TEDATA
1785 1067 1891 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:753 4:14 6:3 8:395 12:1993
13:1 14:608 15:12 16:3 17:7 20:8
23:161 24:1767 27:1267 31:963 32:58 33:2
34:2 36:8 37:321 38:787 40:120 41:3082
42:129 44:3 46:1464 47:3 49:346 50:535
52:13 54:7 55:9 56:3 57:31 58:960
59:494 60:281 61:1203 62:977 63:1995 64:4175
65:2264 66:4496 67:2017 68:1151 69:3176 70:909
71:466 72:1818 74:2588 75:492 76:314 77:971
78:998 79:498 80:1209 81:900 82:663 83:549
84:524 85:1192 86:405 87:908 88:345 89:1630
90:296 91:4679 92:519 93:1400 94:1477 95:1167
96:378 97:318 98:882 99:37 100:6 101:167
103:939 106:74 107:180 108:223 109:1269 110:757
111:908 112:445 113:573 114:617 115:795 116:914
117:722 118:904 119:1210 120:333 121:695 122:1668
123:1102 124:1367 125:1257 128:559 129:192 130:257
131:594 132:173 133:21 134:243 135:62 136:213
137:177 138:353 139:145 140:493 141:244 142:386
143:399 144:507 145:66 146:485 147:242 148:763
149:298 150:156 151:176 152:462 153:172 154:7
155:430 156:216 157:374 158:175 159:523 160:343
161:254 162:347 163:189 164:572 165:388 166:562
167:464 168:815 169:127 170:844 171:126 172:4
173:1728 174:570 175:432 176:456 177:635 178:1315
180:1176 181:73 182:782 183:284 184:452 185:1
186:2129 187:1027 188:1185 189:1781 190:5422 192:5999
193:5599 194:4612 195:3598 196:1284 197:125 198:3617
199:4485 200:5808 201:1910 202:8483 203:8598 204:4346
205:2481 206:2748 207:2791 208:4055 209:3585 210:2762
211:1469 212:1986 213:1906 214:889 215:109 216:5077
217:1520 218:541 219:323 220:1231 221:554 222:327
223:329
End of report
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