Routing Table Report 04:00 +10GMT Wed 14 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 400920
Prefixes after maximum aggregation: 170869
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 192759
Total ASes present in the Internet Routing Table: 40345
Prefixes per ASN: 9.94
Origin-only ASes present in the Internet Routing Table: 32863
Origin ASes announcing only one prefix: 15496
Transit ASes present in the Internet Routing Table: 5416
Transit-only ASes present in the Internet Routing Table: 145
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: 383
Unregistered ASNs in the Routing Table: 173
Number of 32-bit ASNs allocated by the RIRs: 2318
Number of 32-bit ASNs visible in the Routing Table: 2066
Prefixes from 32-bit ASNs in the Routing Table: 4996
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 617
Number of addresses announced to Internet: 2526379152
Equivalent to 150 /8s, 149 /16s and 124 /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: 170050
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98662
Total APNIC prefixes after maximum aggregation: 31953
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 95052
Unique aggregates announced from the APNIC address blocks: 38409
APNIC Region origin ASes present in the Internet Routing Table: 4663
APNIC Prefixes per ASN: 20.38
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 735
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: 163
Number of APNIC addresses announced to Internet: 641015904
Equivalent to 38 /8s, 53 /16s and 32 /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: 148688
Total ARIN prefixes after maximum aggregation: 75665
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120267
Unique aggregates announced from the ARIN address blocks: 48774
ARIN Region origin ASes present in the Internet Routing Table: 14932
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5667
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: 806510080
Equivalent to 48 /8s, 18 /16s and 94 /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: 100717
Total RIPE prefixes after maximum aggregation: 52907
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92229
Unique aggregates announced from the RIPE address blocks: 56993
RIPE Region origin ASes present in the Internet Routing Table: 16351
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7987
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: 1411
Number of RIPE addresses announced to Internet: 501789704
Equivalent to 29 /8s, 232 /16s and 180 /24s
Percentage of available RIPE address space announced: 80.8
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: 39092
Total LACNIC prefixes after maximum aggregation: 8118
LACNIC Deaggregation factor: 4.82
Prefixes being announced from the LACNIC address blocks: 38826
Unique aggregates announced from the LACNIC address blocks: 19731
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 24.68
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 473
Number of LACNIC addresses announced to Internet: 98161544
Equivalent to 5 /8s, 217 /16s and 211 /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: 8531
Total AfriNIC prefixes after maximum aggregation: 2092
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6628
Unique aggregates announced from the AfriNIC address blocks: 2147
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 12.75
AfriNIC Region origin ASes announcing only one prefix: 172
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31525120
Equivalent to 1 /8s, 225 /16s and 9 /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 2494 11110 994 Korea Telecom (KIX)
17974 1742 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1649 303 86 TPG Internet Pty Ltd
4755 1569 386 160 TATA Communications formerly
9829 1189 1001 30 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
4808 1093 2048 311 CNCGROUP IP network: China169
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
18101 949 130 156 Reliance Infocom Ltd Internet
17488 914 159 220 Hathway IP Over Cable Interne
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 3417 1006 158 Windstream Communications Inc
6389 3404 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1882 680 128 PaeTec Communications, Inc.
20115 1634 1555 634 Charter Communications
4323 1608 1059 384 Time Warner Telecom
22773 1546 2910 111 Cox Communications, Inc.
30036 1403 254 757 Mediacom Communications Corp
7018 1292 10016 854 AT&T WorldNet Services
2386 1162 493 859 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 1838 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 LDCOM NETWORKS
34984 662 188 171 BILISIM TELEKOM
6830 640 1927 411 UPC Distribution Services
20940 640 206 489 Akamai Technologies European
12479 630 651 66 Uni2 Autonomous System
8551 574 360 81 Bezeq International
31148 540 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 1776 326 152 TVCABLE BOGOTA
28573 1717 1094 58 NET Servicos de Comunicao S.A
8151 1492 3013 349 UniNet S.A. de C.V.
7303 1329 823 184 Telecom Argentina Stet-France
26615 900 676 30 Tim Brasil S.A.
27947 679 68 108 Telconet S.A
11172 634 91 72 Servicios Alestra S.A de C.V
22047 582 322 17 VTR PUNTO NET S.A.
6503 569 418 65 AVANTEL, S.A.
3816 558 240 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 1233 958 13 TEDATA
24863 686 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 923 229 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
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
16637 153 641 76 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 3417 1006 158 Windstream Communications Inc
6389 3404 3807 198 bellsouth.net, inc.
4766 2494 11110 994 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1882 680 128 PaeTec Communications, Inc.
8402 1838 544 16 Corbina telecom
10620 1776 326 152 TVCABLE BOGOTA
17974 1742 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1717 1094 58 NET Servicos de Comunicao S.A
7545 1649 303 86 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 3404 3206 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1838 1822 Corbina telecom
1785 1882 1754 PaeTec Communications, Inc.
17974 1742 1706 PT TELEKOMUNIKASI INDONESIA
28573 1717 1659 NET Servicos de Comunicao S.A
10620 1776 1624 TVCABLE BOGOTA
7545 1649 1563 TPG Internet Pty Ltd
4766 2494 1500 Korea Telecom (KIX)
22773 1546 1435 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 /14:819 /15:1479 /16:12197 /17:6229 /18:10416
/19:20474 /20:28609 /21:29445 /22:39891 /23:37195 /24:209606
/25:1219 /26:1449 /27:793 /28:169 /29:61 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3073 3417 Windstream Communications Inc
6389 2102 3404 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1816 1838 Corbina telecom
10620 1673 1776 TVCABLE BOGOTA
30036 1352 1403 Mediacom Communications Corp
11492 1125 1162 Cable One
1785 1065 1882 PaeTec Communications, Inc.
8452 1046 1233 TEDATA
7011 1042 1157 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:523 2:786 4:14 6:3 8:390 12:1966
13:1 14:593 15:12 16:3 17:7 20:8
23:142 24:1750 27:1236 31:949 32:62 33:1
34:2 36:9 37:255 38:776 40:122 41:2928
42:126 44:3 46:1401 47:3 49:340 50:515
52:13 54:5 55:10 56:3 57:38 58:954
59:498 60:284 61:1190 62:978 63:2009 64:4142
65:2284 66:4493 67:2016 68:1158 69:3170 70:886
71:314 72:1775 74:2578 75:485 76:320 77:976
78:966 79:486 80:1203 81:891 82:632 83:541
84:608 85:1189 86:728 87:913 88:333 89:1565
90:286 91:4564 92:515 93:1393 94:1390 95:1119
96:375 97:315 98:802 99:38 100:5 101:239
103:892 106:64 107:173 108:196 109:1550 110:740
111:859 112:440 113:558 114:618 115:805 116:897
117:724 118:909 119:1258 120:331 121:688 122:1626
123:1080 124:1374 125:1329 128:541 129:192 130:263
131:578 132:170 133:21 134:237 135:63 136:206
137:185 138:275 139:145 140:487 141:236 142:389
143:422 144:497 145:69 146:489 147:241 148:723
149:300 150:158 151:176 152:449 153:171 154:7
155:429 156:212 157:381 158:162 159:520 160:329
161:245 162:344 163:185 164:531 165:394 166:565
167:463 168:811 169:148 170:846 171:119 172:4
173:1717 174:588 175:430 176:552 177:565 178:1285
180:1193 181:70 182:785 183:284 184:458 185:1
186:2109 187:842 188:1053 189:1207 190:5522 192:5980
193:5580 194:4552 195:3635 196:1286 197:168 198:3619
199:4453 200:5752 201:1770 202:8444 203:8683 204:4360
205:2443 206:2758 207:2795 208:4070 209:3601 210:2770
211:1463 212:1955 213:1863 214:869 215:103 216:5051
217:1520 218:540 219:332 220:1231 221:559 222:324
223:326
End of report