Routing Table Report 04:00 +10GMT Mon 28 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383307
Prefixes after maximum aggregation: 167129
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188221
Total ASes present in the Internet Routing Table: 39387
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32418
Origin ASes announcing only one prefix: 15473
Transit ASes present in the Internet Routing Table: 5312
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: 1788
Unregistered ASNs in the Routing Table: 914
Number of 32-bit ASNs allocated by the RIRs: 2007
Number of 32-bit ASNs visible in the Routing Table: 1657
Prefixes from 32-bit ASNs in the Routing Table: 3918
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2493932096
Equivalent to 148 /8s, 166 /16s and 98 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 161818
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95530
Total APNIC prefixes after maximum aggregation: 31202
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91978
Unique aggregates announced from the APNIC address blocks: 38635
APNIC Region origin ASes present in the Internet Routing Table: 4603
APNIC Prefixes per ASN: 19.98
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 111
Number of APNIC addresses announced to Internet: 630746720
Equivalent to 37 /8s, 152 /16s and 110 /24s
Percentage of available APNIC address space announced: 80.0
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: 145968
Total ARIN prefixes after maximum aggregation: 74563
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118238
Unique aggregates announced from the ARIN address blocks: 48628
ARIN Region origin ASes present in the Internet Routing Table: 14763
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5644
ARIN Region transit ASes present in the Internet Routing Table: 1566
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: 803558848
Equivalent to 47 /8s, 229 /16s and 85 /24s
Percentage of available ARIN address space announced: 63.9
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: 92817
Total RIPE prefixes after maximum aggregation: 51289
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84981
Unique aggregates announced from the RIPE address blocks: 54502
RIPE Region origin ASes present in the Internet Routing Table: 16132
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7979
RIPE Region transit ASes present in the Internet Routing Table: 2552
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: 1153
Number of RIPE addresses announced to Internet: 492648512
Equivalent to 29 /8s, 93 /16s and 56 /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: 36565
Total LACNIC prefixes after maximum aggregation: 7964
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35977
Unique aggregates announced from the LACNIC address blocks: 18769
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.20
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 377
Number of LACNIC addresses announced to Internet: 93819840
Equivalent to 5 /8s, 151 /16s and 147 /24s
Percentage of available LACNIC address space announced: 62.1
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: 8337
Total AfriNIC prefixes after maximum aggregation: 2037
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6396
Unique aggregates announced from the AfriNIC address blocks: 2025
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.77
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 110
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: 27856640
Equivalent to 1 /8s, 169 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 41.5
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 2517 11105 974 Korea Telecom (KIX)
17974 1634 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1510 381 157 TATA Communications formerly
7552 1389 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1096 81 493 Sify Limited
4808 1082 2079 311 CNCGROUP IP network: China169
24560 966 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 149 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 3479 3814 217 bellsouth.net, inc.
7029 2910 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1849 680 121 PaeTec Communications, Inc.
4323 1613 1078 389 Time Warner Telecom
20115 1600 1546 624 Charter Communications
22773 1502 2909 104 Cox Communications, Inc.
30036 1438 258 678 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1314 7030 860 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 1603 480 15 Corbina telecom
6830 651 1927 412 UPC Distribution Services
34984 612 114 193 BILISIM TELEKOM
20940 557 186 439 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 504 606 23 Uni2 Autonomous System
3292 478 2106 406 TDC Tele Danmark
8866 463 133 26 Bulgarian Telecommunication C
8551 418 366 45 Bezeq International
31148 412 22 116 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 1700 315 179 TVCABLE BOGOTA
28573 1517 1045 71 NET Servicos de Comunicao S.A
8151 1445 2973 342 UniNet S.A. de C.V.
7303 1236 751 173 Telecom Argentina Stet-France
27947 610 72 87 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 552 434 68 AVANTEL, S.A.
3816 545 236 87 Empresa Nacional de Telecomun
11172 527 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 894 446 12 TEDATA
24863 780 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
16637 157 664 83 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
6389 3479 3814 217 bellsouth.net, inc.
7029 2910 1016 199 Windstream Communications Inc
4766 2517 11105 974 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1849 680 121 PaeTec Communications, Inc.
10620 1700 315 179 TVCABLE BOGOTA
17974 1634 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1613 1078 389 Time Warner Telecom
8402 1603 480 15 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 2910 2711 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1849 1728 PaeTec Communications, Inc.
17974 1634 1598 PT TELEKOMUNIKASI INDONESIA
8402 1603 1588 Corbina telecom
4766 2517 1543 Korea Telecom (KIX)
7545 1626 1540 TPG Internet Pty Ltd
10620 1700 1521 TVCABLE BOGOTA
28573 1517 1446 NET Servicos de Comunicao S.A
22773 1502 1398 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 /14:809 /15:1432 /16:12027 /17:6089 /18:10149
/19:20019 /20:27728 /21:27915 /22:38059 /23:35604 /24:199168
/25:1164 /26:1363 /27:771 /28:162 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2539 2910 Windstream Communications Inc
6389 2123 3479 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1595 1700 TVCABLE BOGOTA
8402 1578 1603 Corbina telecom
30036 1398 1438 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1849 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 962 1502 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:427 2:480 4:15 5:1 6:3 8:358
12:1952 13:1 14:550 15:11 16:3 17:7
20:9 23:68 24:1693 27:1036 31:684 32:66
33:2 34:2 36:4 38:767 39:1 40:109
41:2879 42:64 43:1 44:3 46:1100 47:3
49:298 50:449 52:13 55:6 56:2 57:49
58:928 59:482 60:360 61:1168 62:914 63:1964
64:4079 65:2309 66:4346 67:2010 68:1173 69:3147
70:904 71:359 72:1814 74:2648 75:430 76:320
77:897 78:892 79:463 80:1134 81:843 82:520
83:523 84:471 85:1160 86:402 87:911 88:353
89:1595 90:246 91:4282 92:537 93:1432 94:1324
95:1113 96:396 97:285 98:765 99:37 101:247
103:517 106:7 107:97 108:86 109:1201 110:677
111:809 112:364 113:500 114:631 115:711 116:905
117:722 118:879 119:1281 120:354 121:671 122:1560
123:1031 124:1369 125:1352 128:302 129:184 130:176
131:633 132:155 133:21 134:223 135:54 136:212
137:145 138:285 139:122 140:493 141:250 142:378
143:400 144:498 145:66 146:476 147:220 148:638
149:274 150:163 151:191 152:449 153:172 154:7
155:379 156:208 157:360 158:157 159:499 160:333
161:215 162:365 163:175 164:518 165:381 166:540
167:448 168:825 169:145 170:826 171:87 172:4
173:1752 174:573 175:436 176:336 177:403 178:1127
180:1178 181:39 182:664 183:250 184:394 185:1
186:1467 187:788 188:994 189:1161 190:5245 192:5935
193:5050 194:3541 195:3115 196:1275 197:175 198:3613
199:4230 200:5516 201:1697 202:8567 203:8525 204:4309
205:2414 206:2657 207:2837 208:4018 209:3585 210:2753
211:1472 212:2010 213:1805 214:786 215:96 216:4924
217:1480 218:575 219:341 220:1253 221:523 222:327
223:281
End of report
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