Routing Table Report 04:00 +10GMT Fri 16 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 400930
Prefixes after maximum aggregation: 170890
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194598
Total ASes present in the Internet Routing Table: 40369
Prefixes per ASN: 9.93
Origin-only ASes present in the Internet Routing Table: 32879
Origin ASes announcing only one prefix: 15486
Transit ASes present in the Internet Routing Table: 5410
Transit-only ASes present in the Internet Routing Table: 141
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: 398
Unregistered ASNs in the Routing Table: 182
Number of 32-bit ASNs allocated by the RIRs: 2321
Number of 32-bit ASNs visible in the Routing Table: 2080
Prefixes from 32-bit ASNs in the Routing Table: 5021
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 667
Number of addresses announced to Internet: 2526149520
Equivalent to 150 /8s, 145 /16s and 251 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
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: 170233
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98299
Total APNIC prefixes after maximum aggregation: 31876
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94688
Unique aggregates announced from the APNIC address blocks: 39251
APNIC Region origin ASes present in the Internet Routing Table: 4656
APNIC Prefixes per ASN: 20.34
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 730
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 164
Number of APNIC addresses announced to Internet: 640420448
Equivalent to 38 /8s, 44 /16s and 10 /24s
Percentage of available APNIC address space announced: 81.2
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: 148775
Total ARIN prefixes after maximum aggregation: 75704
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120301
Unique aggregates announced from the ARIN address blocks: 49847
ARIN Region origin ASes present in the Internet Routing Table: 14937
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5671
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: 15
Number of ARIN addresses announced to Internet: 806436608
Equivalent to 48 /8s, 17 /16s and 63 /24s
Percentage of available ARIN address space announced: 64.1
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: 100800
Total RIPE prefixes after maximum aggregation: 52895
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92286
Unique aggregates announced from the RIPE address blocks: 56932
RIPE Region origin ASes present in the Internet Routing Table: 16347
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2619
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: 1414
Number of RIPE addresses announced to Internet: 502155528
Equivalent to 29 /8s, 238 /16s and 73 /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: 39023
Total LACNIC prefixes after maximum aggregation: 8158
LACNIC Deaggregation factor: 4.78
Prefixes being announced from the LACNIC address blocks: 38758
Unique aggregates announced from the LACNIC address blocks: 19611
LACNIC Region origin ASes present in the Internet Routing Table: 1576
LACNIC Prefixes per ASN: 24.59
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 482
Number of LACNIC addresses announced to Internet: 98155400
Equivalent to 5 /8s, 217 /16s and 187 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8763
Total AfriNIC prefixes after maximum aggregation: 2108
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6851
Unique aggregates announced from the AfriNIC address blocks: 2172
AfriNIC Region origin ASes present in the Internet Routing Table: 526
AfriNIC Prefixes per ASN: 13.02
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.6
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: 31556864
Equivalent to 1 /8s, 225 /16s and 133 /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 2492 11110 994 Korea Telecom (KIX)
17974 1743 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1653 303 88 TPG Internet Pty Ltd
4755 1569 386 160 TATA Communications formerly
9583 1202 91 509 Sify Limited
9829 1188 1001 30 BSNL National Internet Backbo
7552 1162 1062 11 Vietel Corporation
4808 1093 2048 311 CNCGROUP IP network: China169
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
18101 948 130 160 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 3399 3807 198 bellsouth.net, inc.
7029 3394 1006 158 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1883 680 128 PaeTec Communications, Inc.
20115 1632 1558 629 Charter Communications
4323 1603 1060 382 Time Warner Telecom
22773 1547 2910 111 Cox Communications, Inc.
30036 1403 253 758 Mediacom Communications Corp
7018 1275 9776 837 AT&T WorldNet Services
2386 1157 493 857 AT&T Data Communications Serv
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 1815 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
34984 662 188 171 BILISIM TELEKOM
6830 640 1927 411 UPC Distribution Services
12479 634 653 67 Uni2 Autonomous System
20940 628 201 487 Akamai Technologies European
8551 576 360 81 Bezeq International
31148 538 37 9 FreeNet ISP
3320 533 8442 399 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 1781 327 145 TVCABLE BOGOTA
28573 1720 1094 58 NET Servicos de Comunicao S.A
8151 1482 3013 348 UniNet S.A. de C.V.
7303 1330 823 185 Telecom Argentina Stet-France
26615 899 668 32 Tim Brasil S.A.
27947 680 68 108 Telconet S.A
11172 635 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 560 240 89 Empresa Nacional de Telecomun
6503 559 418 65 AVANTEL, S.A.
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 1259 958 13 TEDATA
24863 842 274 37 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 268 922 225 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 183 80 8 RAYA Telecom - Egypt
33776 158 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 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 3399 3807 198 bellsouth.net, inc.
7029 3394 1006 158 Windstream Communications Inc
4766 2492 11110 994 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1883 680 128 PaeTec Communications, Inc.
8402 1815 544 16 Corbina telecom
10620 1781 327 145 TVCABLE BOGOTA
17974 1743 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1720 1094 58 NET Servicos de Comunicao S.A
7545 1653 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 3394 3236 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1815 1799 Corbina telecom
1785 1883 1755 PaeTec Communications, Inc.
17974 1743 1707 PT TELEKOMUNIKASI INDONESIA
28573 1720 1662 NET Servicos de Comunicao S.A
10620 1781 1636 TVCABLE BOGOTA
7545 1653 1565 TPG Internet Pty Ltd
4766 2492 1498 Korea Telecom (KIX)
22773 1547 1436 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 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
/13:458 /14:820 /15:1474 /16:12183 /17:6228 /18:10402
/19:20493 /20:28625 /21:29509 /22:39976 /23:37241 /24:209424
/25:1215 /26:1451 /27:791 /28:168 /29:61 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3050 3394 Windstream Communications Inc
6389 2097 3399 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1791 1815 Corbina telecom
10620 1678 1781 TVCABLE BOGOTA
30036 1353 1403 Mediacom Communications Corp
11492 1118 1155 Cable One
8452 1069 1259 TEDATA
1785 1065 1883 PaeTec Communications, Inc.
7011 1038 1152 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:528 2:768 4:14 6:3 8:376 12:1969
13:1 14:601 15:12 16:3 17:7 20:8
23:144 24:1751 27:1202 31:949 32:62 33:1
34:2 36:8 37:258 38:774 40:122 41:3018
42:128 44:3 46:1419 47:3 49:342 50:516
52:13 54:5 55:11 56:3 57:38 58:954
59:494 60:278 61:1183 62:975 63:1978 64:4162
65:2284 66:4494 67:2014 68:1143 69:3169 70:899
71:389 72:1780 74:2577 75:490 76:320 77:973
78:972 79:496 80:1220 81:891 82:632 83:550
84:597 85:1190 86:726 87:910 88:335 89:1561
90:287 91:4591 92:517 93:1401 94:1392 95:1117
96:358 97:316 98:817 99:38 100:6 101:239
103:896 106:64 107:174 108:203 109:1545 110:746
111:877 112:442 113:561 114:615 115:796 116:870
117:723 118:906 119:1209 120:331 121:689 122:1626
123:1091 124:1364 125:1264 128:546 129:190 130:263
131:579 132:170 133:21 134:239 135:63 136:212
137:185 138:273 139:145 140:485 141:237 142:389
143:438 144:500 145:69 146:489 147:241 148:724
149:300 150:158 151:177 152:449 153:171 154:7
155:431 156:212 157:380 158:162 159:520 160:330
161:245 162:341 163:186 164:532 165:394 166:563
167:463 168:811 169:148 170:843 171:121 172:4
173:1721 174:600 175:435 176:553 177:563 178:1283
180:1137 181:72 182:788 183:284 184:442 185:1
186:2113 187:838 188:1060 189:1208 190:5523 192:5988
193:5589 194:4558 195:3645 196:1286 197:168 198:3617
199:4458 200:5746 201:1646 202:8402 203:8610 204:4357
205:2454 206:2745 207:2797 208:4072 209:3596 210:2759
211:1464 212:1948 213:1875 214:874 215:104 216:5047
217:1524 218:540 219:339 220:1230 221:552 222:324
223:314
End of report
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