Routing Table Report 08:00 +10GMT Mon 12 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 378770
Prefixes after maximum aggregation: 165702
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188550
Total ASes present in the Internet Routing Table: 37657
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 32427
Origin ASes announcing only one prefix: 15510
Transit ASes present in the Internet Routing Table: 5230
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2602
Unregistered ASNs in the Routing Table: 1039
Number of 32-bit ASNs allocated by the RIRs: 2073
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4064
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 78
Number of addresses announced to Internet: 2517039616
Equivalent to 150 /8s, 6 /16s and 250 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 158204
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90528
Total APNIC prefixes after maximum aggregation: 29958
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87957
Unique aggregates announced from the APNIC address blocks: 38540
APNIC Region origin ASes present in the Internet Routing Table: 4552
APNIC Prefixes per ASN: 19.32
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 630852608
Equivalent to 37 /8s, 154 /16s and 12 /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: 145112
Total ARIN prefixes after maximum aggregation: 74313
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117493
Unique aggregates announced from the ARIN address blocks: 48618
ARIN Region origin ASes present in the Internet Routing Table: 14723
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5652
ARIN Region transit ASes present in the Internet Routing Table: 1507
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803425536
Equivalent to 47 /8s, 227 /16s and 77 /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: 93791
Total RIPE prefixes after maximum aggregation: 51450
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 86105
Unique aggregates announced from the RIPE address blocks: 54858
RIPE Region origin ASes present in the Internet Routing Table: 16169
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2559
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 494042112
Equivalent to 29 /8s, 114 /16s and 124 /24s
Percentage of available RIPE address space announced: 79.6
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: 36156
Total LACNIC prefixes after maximum aggregation: 7846
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 35800
Unique aggregates announced from the LACNIC address blocks: 18813
LACNIC Region origin ASes present in the Internet Routing Table: 1538
LACNIC Prefixes per ASN: 23.28
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 94616064
Equivalent to 5 /8s, 163 /16s and 186 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8421
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6480
Unique aggregates announced from the AfriNIC address blocks: 2050
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.96
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 30366464
Equivalent to 1 /8s, 207 /16s and 91 /24s
Percentage of available AfriNIC address space announced: 45.2
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 1948 11101 663 Korea Telecom (KIX)
17974 1631 503 38 PT Telekomunikasi Indonesia
7545 1628 303 86 TPG Internet Pty Ltd
4755 1498 385 158 TATA Communications formerly
9829 1170 989 28 National Internet Backbone
9583 1099 81 496 Sify Limited
24560 982 381 162 Bharti Airtel Ltd., Telemedia
7552 978 1062 11 Vietel Corporation
18101 964 122 157 Reliance Infocom Ltd Internet
4808 937 1949 270 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3481 3814 219 BellSouth.net Inc.
7029 2949 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1858 680 121 PaeTec Communications, Inc.
4323 1617 1089 386 tw telecom holdings, inc.
20115 1601 1548 628 Charter Communications
22773 1504 2909 104 Cox Communications Inc.
30036 1445 258 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1318 7061 866 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1470 480 15 Corbina telecom
6830 644 1927 412 UPC Broadband
34984 623 131 200 BILISIM TELEKOM
2118 549 99 14 EUnet/RELCOM Autonomous Syste
20940 543 173 436 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 528 8161 394 Deutsche Telekom AG
12479 489 601 12 France Telecom Espana SA
3292 481 2106 408 TDC Data Networks
8866 461 133 26 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1721 318 155 Types of queries are: POCs, o
28573 1540 1059 72 Types of queries are: POCs, o
8151 1314 2966 340 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina S.A.
27947 605 73 92 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 Types of queries are: POCs, o
11172 529 102 96 Alestra, S. de R.L. de C.V.
14117 498 46 42 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 963 958 13 TEDATA
24863 781 146 32 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 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
16637 161 664 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3481 3814 219 BellSouth.net Inc.
7029 2949 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1948 11101 663 Korea Telecom (KIX)
1785 1858 680 121 PaeTec Communications, Inc.
10620 1721 318 155 Types of queries are: POCs, o
17974 1631 503 38 PT Telekomunikasi Indonesia
7545 1628 303 86 TPG Internet Pty Ltd
4323 1617 1089 386 tw telecom holdings, inc.
20115 1601 1548 628 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2949 2736 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1858 1737 PaeTec Communications, Inc.
17974 1631 1593 PT Telekomunikasi Indonesia
10620 1721 1566 Types of queries are: POCs, o
7545 1628 1542 TPG Internet Pty Ltd
28573 1540 1468 Types of queries are: POCs, o
8402 1470 1455 Corbina telecom
22773 1504 1400 Cox Communications Inc.
4755 1498 1340 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
66.207.32.0/20 23011 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:810 /15:1440 /16:12006 /17:6087 /18:10124
/19:20186 /20:27758 /21:27964 /22:37910 /23:35423 /24:197682
/25:11 /26:21 /27:20 /28:152 /29:135 /30:65
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2562 2949 Windstream Communications Inc
6389 2123 3481 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
8402 1445 1470 Corbina telecom
30036 1405 1445 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1060 1858 PaeTec Communications, Inc.
7011 1051 1167 Frontier Communications of Am
22773 965 1504 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:444 2:453 4:15 5:1 6:3 8:360
12:1944 13:1 14:554 15:11 16:3 17:7
20:9 23:70 24:1694 27:1107 31:725 32:62
33:2 34:2 36:4 38:767 40:114 41:2917
42:72 44:3 46:1113 47:3 49:275 50:458
52:13 55:5 56:2 57:42 58:869 59:481
60:335 61:1071 62:912 63:1964 64:4050 65:2302
66:4351 67:2006 68:1178 69:3119 70:914 71:362
72:1777 74:2638 75:430 76:319 77:932 78:871
79:437 80:1144 81:845 82:533 83:531 84:471
85:1171 86:417 87:910 88:353 89:1584 90:247
91:4341 92:541 93:1386 94:1331 95:1088 96:391
97:286 98:777 99:38 101:122 103:535 106:8
107:107 108:95 109:1096 110:670 111:817 112:364
113:484 114:608 115:686 116:859 117:694 118:874
119:1227 120:341 121:656 122:1546 123:1017 124:1295
125:1289 128:271 129:181 130:177 131:570 132:153
133:21 134:212 135:54 136:211 137:145 138:286
139:121 140:456 141:253 142:365 143:393 144:500
145:66 146:470 147:223 148:607 149:271 150:158
151:192 152:443 153:171 154:6 155:395 156:205
157:327 158:156 159:431 160:339 161:204 162:360
163:173 164:519 165:389 166:542 167:458 168:812
169:145 170:824 171:93 172:4 173:1787 174:591
175:402 176:337 177:427 178:1130 180:1205 181:38
182:663 183:246 184:400 185:1 186:1475 187:785
188:947 189:1149 190:5279 192:5931 193:5118 194:3804
195:3367 196:1266 197:173 198:3561 199:4174 200:5433
201:1699 202:8276 203:8433 204:4246 205:2386 206:2586
207:2772 208:3994 209:3531 210:2671 211:1441 212:1991
213:1799 214:821 215:94 216:4906 217:1491 218:558
219:331 220:1215 221:507 222:297 223:248
End of report
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