Routing Table Report 04:00 +10GMT Wed 23 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382746
Prefixes after maximum aggregation: 167124
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188126
Total ASes present in the Internet Routing Table: 39372
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32433
Origin ASes announcing only one prefix: 15475
Transit ASes present in the Internet Routing Table: 5292
Transit-only ASes present in the Internet Routing Table: 137
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: 1768
Unregistered ASNs in the Routing Table: 904
Number of 32-bit ASNs allocated by the RIRs: 1974
Number of 32-bit ASNs visible in the Routing Table: 1647
Prefixes from 32-bit ASNs in the Routing Table: 3844
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2491685888
Equivalent to 148 /8s, 132 /16s and 28 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161441
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95497
Total APNIC prefixes after maximum aggregation: 31264
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91952
Unique aggregates announced from the APNIC address blocks: 38656
APNIC Region origin ASes present in the Internet Routing Table: 4616
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 715
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630258272
Equivalent to 37 /8s, 144 /16s and 250 /24s
Percentage of available APNIC address space announced: 79.9
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: 146020
Total ARIN prefixes after maximum aggregation: 74546
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118209
Unique aggregates announced from the ARIN address blocks: 48627
ARIN Region origin ASes present in the Internet Routing Table: 14755
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1569
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803287232
Equivalent to 47 /8s, 225 /16s and 48 /24s
Percentage of available ARIN address space announced: 63.8
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: 92621
Total RIPE prefixes after maximum aggregation: 51256
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84847
Unique aggregates announced from the RIPE address blocks: 54539
RIPE Region origin ASes present in the Internet Routing Table: 16122
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2540
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1146
Number of RIPE addresses announced to Internet: 492622656
Equivalent to 29 /8s, 92 /16s and 211 /24s
Percentage of available RIPE address space announced: 79.4
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: 36354
Total LACNIC prefixes after maximum aggregation: 7942
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35811
Unique aggregates announced from the LACNIC address blocks: 18614
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.09
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 375
Number of LACNIC addresses announced to Internet: 93151616
Equivalent to 5 /8s, 141 /16s and 97 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8227
Total AfriNIC prefixes after maximum aggregation: 2043
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 6280
Unique aggregates announced from the AfriNIC address blocks: 2045
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.53
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27779584
Equivalent to 1 /8s, 167 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 41.4
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 2515 11105 973 Korea Telecom (KIX)
17974 1639 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4755 1516 376 168 TATA Communications formerly
7552 1389 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1096 2073 312 CNCGROUP IP network: China169
9583 1094 80 494 Sify Limited
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 951 119 147 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 3483 3814 219 bellsouth.net, inc.
7029 2911 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
4323 1613 1078 389 Time Warner Telecom
20115 1598 1546 624 Charter Communications
22773 1501 2909 104 Cox Communications, Inc.
30036 1433 257 674 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1312 7029 858 AT&T WorldNet Services
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 1599 416 14 Corbina telecom
6830 650 1927 412 UPC Distribution Services
34984 604 114 189 BILISIM TELEKOM
20940 556 185 438 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 486 596 9 Uni2 Autonomous System
3292 480 2106 408 TDC Tele Danmark
8866 463 133 26 Bulgarian Telecommunication C
8551 415 366 45 Bezeq International
31148 410 22 115 FreeNet ISP
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 1699 315 178 TVCABLE BOGOTA
28573 1515 1045 71 NET Servicos de Comunicao S.A
8151 1448 2971 344 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 608 72 86 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
6503 557 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 541 235 97 Empresa Nacional de Telecomun
11172 529 85 95 Servicios Alestra S.A de C.V
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 848 446 12 TEDATA
24863 779 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 217 13 14 Starcomms Nigeria Limited
12258 196 28 57 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
36923 159 20 4 Swift Networks Limited
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 3483 3814 219 bellsouth.net, inc.
7029 2911 1016 199 Windstream Communications Inc
4766 2515 11105 973 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
10620 1699 315 178 TVCABLE BOGOTA
17974 1639 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4323 1613 1078 389 Time Warner Telecom
8402 1599 416 14 Corbina telecom
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 2911 2712 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1727 PaeTec Communications, Inc.
17974 1639 1603 PT TELEKOMUNIKASI INDONESIA
8402 1599 1585 Corbina telecom
4766 2515 1542 Korea Telecom (KIX)
7545 1627 1540 TPG Internet Pty Ltd
10620 1699 1521 TVCABLE BOGOTA
28573 1515 1444 NET Servicos de Comunicao S.A
22773 1501 1397 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /10:27 /11:81 /12:236
/13:465 /14:807 /15:1427 /16:12022 /17:6083 /18:10122
/19:19993 /20:27689 /21:27919 /22:37995 /23:35517 /24:198879
/25:1157 /26:1364 /27:759 /28:164 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2540 2911 Windstream Communications Inc
6389 2125 3483 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1594 1699 TVCABLE BOGOTA
8402 1575 1599 Corbina telecom
30036 1393 1433 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
22773 961 1501 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:419 2:491 4:15 5:1 6:3 8:358
12:1958 13:1 14:553 15:11 16:3 17:7
20:9 23:69 24:1689 27:1026 31:714 32:65
33:2 34:2 36:4 38:767 39:1 40:109
41:2798 42:64 43:1 44:3 46:1057 47:3
49:297 50:455 52:13 55:7 56:2 57:49
58:928 59:487 60:360 61:1165 62:896 63:1964
64:4077 65:2300 66:4339 67:2013 68:1173 69:3147
70:905 71:355 72:1815 74:2650 75:432 76:320
77:894 78:895 79:458 80:1141 81:840 82:512
83:521 84:469 85:1152 86:404 87:905 88:357
89:1594 90:237 91:4275 92:538 93:1446 94:1312
95:1128 96:429 97:285 98:772 99:37 101:245
103:513 106:1 107:95 108:85 109:1193 110:674
111:808 112:364 113:499 114:625 115:716 116:887
117:720 118:895 119:1272 120:354 121:669 122:1573
123:1026 124:1367 125:1351 128:269 129:184 130:176
131:633 132:155 133:21 134:229 135:54 136:211
137:146 138:285 139:122 140:494 141:250 142:386
143:408 144:497 145:65 146:472 147:219 148:635
149:273 150:164 151:191 152:448 153:172 154:6
155:375 156:208 157:358 158:156 159:496 160:333
161:213 162:370 163:175 164:518 165:366 166:541
167:448 168:826 169:146 170:822 171:87 172:4
173:1751 174:590 175:436 176:321 177:389 178:1120
180:1180 181:39 182:663 183:246 184:394 185:1
186:1411 187:781 188:981 189:1152 190:5207 192:5931
193:5053 194:3555 195:3108 196:1281 197:166 198:3615
199:4222 200:5519 201:1705 202:8566 203:8556 204:4304
205:2398 206:2659 207:2835 208:4028 209:3582 210:2746
211:1471 212:2020 213:1806 214:812 215:96 216:4912
217:1478 218:578 219:340 220:1253 221:523 222:326
223:281
End of report
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