Routing Table Report 08:00 +10GMT Sat 03 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 377623
Prefixes after maximum aggregation: 165512
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188152
Total ASes present in the Internet Routing Table: 37627
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32420
Origin ASes announcing only one prefix: 15514
Transit ASes present in the Internet Routing Table: 5207
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: 2565
Unregistered ASNs in the Routing Table: 1010
Number of 32-bit ASNs allocated by the RIRs: 2031
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3993
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2514700288
Equivalent to 149 /8s, 227 /16s and 72 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 157952
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90333
Total APNIC prefixes after maximum aggregation: 29859
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 87758
Unique aggregates announced from the APNIC address blocks: 38300
APNIC Region origin ASes present in the Internet Routing Table: 4544
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 705
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: 630909440
Equivalent to 37 /8s, 154 /16s and 234 /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: 144861
Total ARIN prefixes after maximum aggregation: 74292
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117308
Unique aggregates announced from the ARIN address blocks: 48607
ARIN Region origin ASes present in the Internet Routing Table: 14704
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1502
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: 803434496
Equivalent to 47 /8s, 227 /16s and 112 /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: 93285
Total RIPE prefixes after maximum aggregation: 51380
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85476
Unique aggregates announced from the RIPE address blocks: 54727
RIPE Region origin ASes present in the Internet Routing Table: 16164
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 8017
RIPE Region transit ASes present in the Internet Routing Table: 2539
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 492771584
Equivalent to 29 /8s, 95 /16s and 25 /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: 36163
Total LACNIC prefixes after maximum aggregation: 7875
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35726
Unique aggregates announced from the LACNIC address blocks: 18776
LACNIC Region origin ASes present in the Internet Routing Table: 1541
LACNIC Prefixes per ASN: 23.18
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 94366720
Equivalent to 5 /8s, 159 /16s and 236 /24s
Percentage of available LACNIC address space announced: 62.5
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: 8297
Total AfriNIC prefixes after maximum aggregation: 2038
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 6368
Unique aggregates announced from the AfriNIC address blocks: 2008
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.74
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 3.4
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: 30031360
Equivalent to 1 /8s, 202 /16s and 62 /24s
Percentage of available AfriNIC address space announced: 44.8
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 1951 11102 667 Korea Telecom (KIX)
7545 1623 303 87 TPG Internet Pty Ltd
17974 1600 503 38 PT Telekomunikasi Indonesia
4755 1499 381 157 TATA Communications formerly
9829 1141 989 28 National Internet Backbone
9583 1095 80 494 Sify Limited
24560 985 390 151 Bharti Airtel Ltd., Telemedia
7552 979 1062 11 Vietel Corporation
18101 959 121 155 Reliance Infocom Ltd Internet
17488 945 173 221 Hathway IP Over Cable Interne
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 3484 3814 219 BellSouth.net Inc.
7029 2945 1042 212 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1856 680 121 PaeTec Communications, Inc.
4323 1616 1089 387 tw telecom holdings, inc.
20115 1602 1546 625 Charter Communications
22773 1500 2909 103 Cox Communications Inc.
30036 1434 257 674 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1323 7063 869 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 1439 480 15 Corbina telecom
6830 644 1927 412 UPC Broadband
34984 615 115 194 BILISIM TELEKOM
20940 546 173 439 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 516 8168 389 Deutsche Telekom AG
12479 494 601 13 France Telecom Espana SA
3292 481 2106 408 TDC Data Networks
8866 461 133 26 Bulgarian Telecommunication C
8551 452 367 39 Bezeq International
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 1703 315 180 Types of queries are: POCs, o
28573 1530 1059 72 Types of queries are: POCs, o
8151 1315 2966 341 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina S.A.
27947 601 72 90 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
6503 542 434 69 Axtel, S.A.B. de C.V.
11172 529 102 96 Alestra, S. de R.L. de C.V.
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 926 958 13 TEDATA
24863 781 146 32 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
33776 231 13 10 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 191 80 8 RAYA Telecom - Egypt
16637 158 664 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 3484 3814 219 BellSouth.net Inc.
7029 2945 1042 212 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1951 11102 667 Korea Telecom (KIX)
1785 1856 680 121 PaeTec Communications, Inc.
10620 1703 315 180 Types of queries are: POCs, o
7545 1623 303 87 TPG Internet Pty Ltd
4323 1616 1089 387 tw telecom holdings, inc.
20115 1602 1546 625 Charter Communications
17974 1600 503 38 PT Telekomunikasi Indonesia
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 2945 2733 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1856 1735 PaeTec Communications, Inc.
17974 1600 1562 PT Telekomunikasi Indonesia
7545 1623 1536 TPG Internet Pty Ltd
10620 1703 1523 Types of queries are: POCs, o
28573 1530 1458 Types of queries are: POCs, o
8402 1439 1424 Corbina telecom
22773 1500 1397 Cox Communications Inc.
4755 1499 1342 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 37345 MEDALLION Communications
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
66.171.32.0/20 705 MCI Communications Services,
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
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
/13:463 /14:805 /15:1433 /16:12016 /17:6097 /18:10112
/19:20167 /20:27691 /21:27939 /22:37832 /23:35386 /24:196768
/25:11 /26:20 /27:21 /28:153 /29:132 /30:63
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2558 2945 Windstream Communications Inc
6389 2126 3484 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
10620 1598 1703 Types of queries are: POCs, o
8402 1414 1439 Corbina telecom
30036 1394 1434 Mediacom Communications Corp
11492 1077 1114 CABLE ONE, INC.
1785 1058 1856 PaeTec Communications, Inc.
7011 1052 1169 Frontier Communications of Am
22773 961 1500 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:441 2:460 4:15 5:1 6:3 8:359
12:1946 13:1 14:539 15:11 16:3 17:7
20:9 23:69 24:1676 27:1053 31:716 32:62
33:2 34:2 36:4 38:765 40:114 41:2864
42:66 44:3 46:1113 47:3 49:292 50:448
52:13 55:6 56:2 57:45 58:871 59:480
60:355 61:1074 62:917 63:1965 64:4027 65:2305
66:4355 67:1996 68:1173 69:3140 70:902 71:361
72:1769 74:2638 75:429 76:320 77:907 78:875
79:436 80:1142 81:849 82:527 83:529 84:470
85:1164 86:417 87:909 88:339 89:1587 90:246
91:4316 92:532 93:1407 94:1328 95:1069 96:390
97:285 98:762 99:37 101:118 103:515 106:7
107:102 108:90 109:1117 110:665 111:812 112:358
113:485 114:613 115:682 116:874 117:690 118:863
119:1219 120:347 121:644 122:1562 123:1015 124:1296
125:1300 128:244 129:177 130:177 131:629 132:147
133:21 134:214 135:54 136:210 137:144 138:287
139:121 140:463 141:252 142:362 143:400 144:495
145:62 146:469 147:222 148:620 149:269 150:159
151:192 152:447 153:171 154:6 155:396 156:206
157:328 158:157 159:452 160:332 161:204 162:361
163:166 164:517 165:387 166:540 167:454 168:818
169:145 170:823 171:88 172:4 173:1766 174:583
175:405 176:321 177:407 178:1148 180:1176 181:39
182:657 183:242 184:399 185:1 186:1481 187:784
188:951 189:1165 190:5257 192:5923 193:5119 194:3561
195:3119 196:1265 197:170 198:3573 199:4196 200:5431
201:1694 202:8247 203:8391 204:4245 205:2378 206:2582
207:2767 208:3999 209:3527 210:2658 211:1444 212:2006
213:1804 214:789 215:92 216:4905 217:1488 218:558
219:333 220:1215 221:505 222:296 223:227
End of report
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