Routing Table Report 04:00 +10GMT Mon 26 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 404247
Prefixes after maximum aggregation: 171484
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195503
Total ASes present in the Internet Routing Table: 40485
Prefixes per ASN: 9.99
Origin-only ASes present in the Internet Routing Table: 32928
Origin ASes announcing only one prefix: 15478
Transit ASes present in the Internet Routing Table: 5432
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 472
Unregistered ASNs in the Routing Table: 230
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 2125
Prefixes from 32-bit ASNs in the Routing Table: 5195
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 896
Number of addresses announced to Internet: 2527685768
Equivalent to 150 /8s, 169 /16s and 108 /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: 172737
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98573
Total APNIC prefixes after maximum aggregation: 32059
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 94970
Unique aggregates announced from the APNIC address blocks: 39426
APNIC Region origin ASes present in the Internet Routing Table: 4677
APNIC Prefixes per ASN: 20.31
APNIC Region origin ASes announcing only one prefix: 1236
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: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 168
Number of APNIC addresses announced to Internet: 641300064
Equivalent to 38 /8s, 57 /16s and 118 /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: 150541
Total ARIN prefixes after maximum aggregation: 75852
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 121863
Unique aggregates announced from the ARIN address blocks: 49914
ARIN Region origin ASes present in the Internet Routing Table: 14938
ARIN Prefixes per ASN: 8.16
ARIN Region origin ASes announcing only one prefix: 5682
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: 16
Number of ARIN addresses announced to Internet: 805165568
Equivalent to 47 /8s, 253 /16s and 218 /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: 101532
Total RIPE prefixes after maximum aggregation: 53109
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92884
Unique aggregates announced from the RIPE address blocks: 57149
RIPE Region origin ASes present in the Internet Routing Table: 16356
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 7966
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: 1444
Number of RIPE addresses announced to Internet: 502120448
Equivalent to 29 /8s, 237 /16s and 192 /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: 39249
Total LACNIC prefixes after maximum aggregation: 8154
LACNIC Deaggregation factor: 4.81
Prefixes being announced from the LACNIC address blocks: 39016
Unique aggregates announced from the LACNIC address blocks: 19755
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.82
LACNIC Region origin ASes announcing only one prefix: 431
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: 492
Number of LACNIC addresses announced to Internet: 98590088
Equivalent to 5 /8s, 224 /16s and 93 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8838
Total AfriNIC prefixes after maximum aggregation: 2107
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6915
Unique aggregates announced from the AfriNIC address blocks: 2174
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.27
AfriNIC Region origin ASes announcing only one prefix: 163
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: 31508736
Equivalent to 1 /8s, 224 /16s and 201 /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 2490 11109 991 Korea Telecom (KIX)
17974 1758 503 64 PT TELEKOMUNIKASI INDONESIA
7545 1659 303 90 TPG Internet Pty Ltd
4755 1573 386 160 TATA Communications formerly
9583 1238 95 540 Sify Limited
9829 1208 1025 29 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
4808 1097 2048 314 CNCGROUP IP network: China169
24560 1014 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
7029 3378 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2975 1060 385 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1886 680 129 PaeTec Communications, Inc.
20115 1634 1559 626 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1403 253 743 Mediacom Communications Corp
7018 1282 9776 835 AT&T WorldNet Services
11492 1165 212 413 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 1800 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1034 2247 55 LDCOM NETWORKS
31148 672 37 9 FreeNet ISP
34984 666 188 174 BILISIM TELEKOM
12479 644 654 56 Uni2 Autonomous System
6830 641 1943 412 UPC Distribution Services
20940 636 203 489 Akamai Technologies European
8551 576 360 81 Bezeq International
3320 532 8442 398 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 1807 329 130 TVCABLE BOGOTA
28573 1729 1099 60 NET Servicos de Comunicao S.A
8151 1495 3017 354 UniNet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 901 684 29 Tim Brasil S.A.
27947 688 69 111 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 562 239 96 Empresa Nacional de Telecomun
6503 557 418 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 1265 958 13 TEDATA
24863 844 274 37 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
16637 164 664 82 MTN Network Solutions
36923 157 20 4 Swift Networks Limited
29571 143 14 24 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
7029 3378 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2975 1060 385 Time Warner Telecom
4766 2490 11109 991 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1886 680 129 PaeTec Communications, Inc.
10620 1807 329 130 TVCABLE BOGOTA
8402 1800 544 16 Corbina telecom
17974 1758 503 64 PT TELEKOMUNIKASI INDONESIA
28573 1729 1099 60 NET Servicos de Comunicao S.A
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3371 3175 bellsouth.net, inc.
4323 2975 2590 Time Warner Telecom
18566 2093 1914 Covad Communications
8402 1800 1784 Corbina telecom
1785 1886 1757 PaeTec Communications, Inc.
17974 1758 1694 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1729 1669 NET Servicos de Comunicao S.A
7545 1659 1569 TPG Internet Pty Ltd
4766 2490 1499 Korea Telecom (KIX)
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 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,
16476 UNALLOCATED 12.46.27.0/24 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 /12:234
/13:458 /14:824 /15:1476 /16:12180 /17:6244 /18:10435
/19:20539 /20:28737 /21:29652 /22:40187 /23:37541 /24:211876
/25:1216 /26:1452 /27:796 /28:167 /29:58 /30:16
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3038 3378 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1806 2975 Time Warner Telecom
8402 1777 1800 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1351 1403 Mediacom Communications Corp
11492 1128 1165 Cable One
8452 1075 1265 TEDATA
1785 1067 1886 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:766 4:14 6:3 8:391 12:1969
13:1 14:600 15:12 16:3 17:7 20:8
23:149 24:1754 27:1251 31:939 32:58 33:2
34:2 36:8 37:287 38:780 40:120 41:3000
42:129 44:3 46:1455 47:3 49:342 50:639
52:13 54:6 55:8 56:3 57:32 58:958
59:494 60:278 61:1199 62:1003 63:1996 64:4346
65:2275 66:4829 67:2009 68:1147 69:3186 70:902
71:438 72:1805 74:2710 75:491 76:320 77:963
78:981 79:502 80:1234 81:908 82:659 83:552
84:613 85:1192 86:728 87:915 88:343 89:1616
90:296 91:4632 92:519 93:1506 94:1454 95:1159
96:375 97:385 98:831 99:37 100:6 101:157
103:919 106:64 107:178 108:210 109:1553 110:754
111:902 112:444 113:562 114:630 115:767 116:908
117:724 118:907 119:1204 120:337 121:695 122:1662
123:1093 124:1363 125:1260 128:559 129:190 130:261
131:594 132:173 133:21 134:243 135:63 136:212
137:194 138:351 139:145 140:494 141:241 142:388
143:403 144:498 145:69 146:491 147:244 148:720
149:297 150:156 151:176 152:459 153:171 154:7
155:427 156:213 157:380 158:166 159:523 160:326
161:249 162:343 163:186 164:546 165:391 166:560
167:463 168:858 169:148 170:844 171:124 172:2
173:1832 174:723 175:434 176:460 177:587 178:1295
180:1119 181:73 182:758 183:276 184:441 185:1
186:2139 187:856 188:1150 189:1188 190:5560 192:5992
193:5592 194:4574 195:3643 196:1287 197:177 198:3621
199:4482 200:5765 201:1654 202:8464 203:8593 204:4353
205:2461 206:2800 207:2832 208:4052 209:3689 210:2763
211:1468 212:1975 213:1901 214:866 215:108 216:5094
217:1531 218:539 219:334 220:1230 221:551 222:325
223:327
End of report
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