Routing Table Report 04:00 +10GMT Thu 22 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 402507
Prefixes after maximum aggregation: 171156
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195110
Total ASes present in the Internet Routing Table: 40453
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32900
Origin ASes announcing only one prefix: 15489
Transit ASes present in the Internet Routing Table: 5439
Transit-only ASes present in the Internet Routing Table: 140
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: 438
Unregistered ASNs in the Routing Table: 207
Number of 32-bit ASNs allocated by the RIRs: 2325
Number of 32-bit ASNs visible in the Routing Table: 2114
Prefixes from 32-bit ASNs in the Routing Table: 5146
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 825
Number of addresses announced to Internet: 2527463312
Equivalent to 150 /8s, 166 /16s and 7 /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: 171143
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98584
Total APNIC prefixes after maximum aggregation: 32009
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94998
Unique aggregates announced from the APNIC address blocks: 39376
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: 1239
APNIC Region transit ASes present in the Internet Routing Table: 726
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: 167
Number of APNIC addresses announced to Internet: 641017952
Equivalent to 38 /8s, 53 /16s and 40 /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: 148958
Total ARIN prefixes after maximum aggregation: 75743
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120490
Unique aggregates announced from the ARIN address blocks: 49867
ARIN Region origin ASes present in the Internet Routing Table: 14939
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5678
ARIN Region transit ASes present in the Internet Routing Table: 1577
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: 806599424
Equivalent to 48 /8s, 19 /16s and 187 /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: 101445
Total RIPE prefixes after maximum aggregation: 53035
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92809
Unique aggregates announced from the RIPE address blocks: 57096
RIPE Region origin ASes present in the Internet Routing Table: 16358
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 7971
RIPE Region transit ASes present in the Internet Routing Table: 2648
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: 1435
Number of RIPE addresses announced to Internet: 502224904
Equivalent to 29 /8s, 239 /16s and 88 /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: 39155
Total LACNIC prefixes after maximum aggregation: 8082
LACNIC Deaggregation factor: 4.84
Prefixes being announced from the LACNIC address blocks: 38884
Unique aggregates announced from the LACNIC address blocks: 19657
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.74
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 491
Number of LACNIC addresses announced to Internet: 98473096
Equivalent to 5 /8s, 222 /16s and 148 /24s
Percentage of available LACNIC address space announced: 65.2
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: 8930
Total AfriNIC prefixes after maximum aggregation: 2113
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 7009
Unique aggregates announced from the AfriNIC address blocks: 2193
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 120
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: 31510784
Equivalent to 1 /8s, 224 /16s and 209 /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 2498 11110 997 Korea Telecom (KIX)
17974 1746 500 61 PT TELEKOMUNIKASI INDONESIA
7545 1656 303 88 TPG Internet Pty Ltd
4755 1573 386 160 TATA Communications formerly
9583 1238 95 540 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1165 1062 11 Vietel Corporation
4808 1096 2048 312 CNCGROUP IP network: China169
24560 1015 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 1006 155 Windstream Communications Inc
6389 3375 3807 198 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
1785 1883 680 128 PaeTec Communications, Inc.
20115 1633 1558 628 Charter Communications
4323 1603 1060 382 Time Warner Telecom
22773 1544 2910 111 Cox Communications, Inc.
30036 1400 252 745 Mediacom Communications Corp
7018 1278 9776 835 AT&T WorldNet Services
11492 1164 212 415 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 1772 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2247 55 LDCOM NETWORKS
34984 664 188 174 BILISIM TELEKOM
31148 660 37 9 FreeNet ISP
6830 641 1943 412 UPC Distribution Services
12479 638 651 55 Uni2 Autonomous System
20940 632 203 488 Akamai Technologies European
8551 575 360 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 1727 1099 60 NET Servicos de Comunicao S.A
8151 1481 3017 348 UniNet S.A. de C.V.
7303 1350 825 189 Telecom Argentina Stet-France
26615 901 684 29 Tim Brasil S.A.
27947 687 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 559 239 96 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 1258 958 13 TEDATA
24863 843 274 37 LINKdotNET AS number
6713 489 649 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
15399 191 29 11 Wananchi Online Limited
24835 177 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
16637 155 647 81 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
7029 3378 1006 155 Windstream Communications Inc
6389 3375 3807 198 bellsouth.net, inc.
4766 2498 11110 997 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1883 680 128 PaeTec Communications, Inc.
10620 1807 329 130 TVCABLE BOGOTA
8402 1772 544 16 Corbina telecom
17974 1746 500 61 PT TELEKOMUNIKASI INDONESIA
28573 1727 1099 60 NET Servicos de Comunicao S.A
7545 1656 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
6389 3375 3177 bellsouth.net, inc.
18566 2093 1914 Covad Communications
8402 1772 1756 Corbina telecom
1785 1883 1755 PaeTec Communications, Inc.
17974 1746 1685 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1727 1667 NET Servicos de Comunicao S.A
7545 1656 1568 TPG Internet Pty Ltd
4766 2498 1501 Korea Telecom (KIX)
22773 1544 1433 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 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 /12:235
/13:458 /14:822 /15:1475 /16:12181 /17:6249 /18:10426
/19:20530 /20:28752 /21:29631 /22:40136 /23:37433 /24:210305
/25:1220 /26:1455 /27:797 /28:166 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3038 3378 Windstream Communications Inc
6389 2090 3375 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1749 1772 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1348 1400 Mediacom Communications Corp
11492 1127 1164 Cable One
8452 1068 1258 TEDATA
1785 1065 1883 PaeTec Communications, Inc.
15557 1046 1099 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:532 2:759 4:14 6:3 8:394 12:1975
13:1 14:607 15:12 16:3 17:7 20:8
23:145 24:1754 27:1246 31:932 32:62 33:2
34:2 36:8 37:292 38:779 40:122 41:3096
42:128 44:3 46:1437 47:3 49:342 50:515
52:13 54:6 55:10 56:3 57:37 58:957
59:494 60:278 61:1201 62:985 63:1995 64:4189
65:2276 66:4504 67:2006 68:1147 69:3181 70:899
71:438 72:1804 74:2584 75:491 76:320 77:966
78:982 79:502 80:1246 81:905 82:649 83:553
84:621 85:1195 86:731 87:919 88:348 89:1614
90:294 91:4623 92:519 93:1485 94:1448 95:1160
96:375 97:316 98:802 99:38 100:6 101:151
103:914 106:64 107:175 108:209 109:1562 110:752
111:903 112:443 113:558 114:631 115:762 116:870
117:726 118:909 119:1205 120:350 121:694 122:1658
123:1086 124:1364 125:1264 128:549 129:190 130:263
131:584 132:173 133:21 134:242 135:63 136:212
137:187 138:275 139:145 140:494 141:241 142:390
143:432 144:498 145:69 146:493 147:243 148:721
149:295 150:157 151:174 152:457 153:171 154:7
155:428 156:213 157:380 158:163 159:520 160:324
161:250 162:343 163:186 164:536 165:391 166:563
167:463 168:810 169:148 170:841 171:121 172:4
173:1717 174:589 175:433 176:458 177:578 178:1289
180:1121 181:73 182:765 183:277 184:442 185:1
186:2130 187:845 188:1142 189:1198 190:5503 192:5987
193:5594 194:4568 195:3638 196:1285 197:185 198:3617
199:4471 200:5754 201:1655 202:8459 203:8600 204:4354
205:2460 206:2744 207:2797 208:4055 209:3601 210:2761
211:1466 212:1971 213:1894 214:861 215:108 216:5058
217:1526 218:538 219:324 220:1230 221:552 222:325
223:328
End of report