Routing Table Report 08:00 +10GMT Mon 05 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 377651
Prefixes after maximum aggregation: 165433
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188155
Total ASes present in the Internet Routing Table: 37628
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32409
Origin ASes announcing only one prefix: 15518
Transit ASes present in the Internet Routing Table: 5219
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: 2574
Unregistered ASNs in the Routing Table: 1014
Number of 32-bit ASNs allocated by the RIRs: 2044
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3997
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 81
Number of addresses announced to Internet: 2514078464
Equivalent to 149 /8s, 217 /16s and 203 /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: 157905
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90493
Total APNIC prefixes after maximum aggregation: 29875
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 87917
Unique aggregates announced from the APNIC address blocks: 38401
APNIC Region origin ASes present in the Internet Routing Table: 4550
APNIC Prefixes per ASN: 19.32
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 704
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: 630833664
Equivalent to 37 /8s, 153 /16s and 194 /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: 144824
Total ARIN prefixes after maximum aggregation: 74193
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117284
Unique aggregates announced from the ARIN address blocks: 48621
ARIN Region origin ASes present in the Internet Routing Table: 14702
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5639
ARIN Region transit ASes present in the Internet Routing Table: 1509
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: 803198976
Equivalent to 47 /8s, 223 /16s and 216 /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: 93215
Total RIPE prefixes after maximum aggregation: 51372
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85462
Unique aggregates announced from the RIPE address blocks: 54733
RIPE Region origin ASes present in the Internet Routing Table: 16163
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 8014
RIPE Region transit ASes present in the Internet Routing Table: 2545
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: 492806144
Equivalent to 29 /8s, 95 /16s and 160 /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: 36077
Total LACNIC prefixes after maximum aggregation: 7885
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35693
Unique aggregates announced from the LACNIC address blocks: 18745
LACNIC Region origin ASes present in the Internet Routing Table: 1537
LACNIC Prefixes per ASN: 23.22
LACNIC Region origin ASes announcing only one prefix: 442
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: 94330112
Equivalent to 5 /8s, 159 /16s and 93 /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: 8352
Total AfriNIC prefixes after maximum aggregation: 2036
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6434
Unique aggregates announced from the AfriNIC address blocks: 2004
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.84
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 29998080
Equivalent to 1 /8s, 201 /16s and 188 /24s
Percentage of available AfriNIC address space announced: 44.7
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 1629 303 87 TPG Internet Pty Ltd
17974 1600 503 38 PT Telekomunikasi Indonesia
4755 1499 385 158 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1095 80 494 Sify Limited
24560 983 382 162 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 2946 1042 212 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1856 680 121 PaeTec Communications, Inc.
4323 1613 1089 387 tw telecom holdings, inc.
20115 1602 1546 625 Charter Communications
22773 1506 2909 104 Cox Communications Inc.
30036 1434 257 674 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1322 7063 868 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 1461 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 423 367 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 1702 315 183 Types of queries are: POCs, o
28573 1535 1059 72 Types of queries are: POCs, o
8151 1313 2966 340 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 549 237 89 Types of queries are: POCs, o
6503 542 434 69 Axtel, S.A.B. de C.V.
11172 530 102 97 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 953 958 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 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 2946 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 1702 315 183 Types of queries are: POCs, o
7545 1629 303 87 TPG Internet Pty Ltd
4323 1613 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 2946 2734 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1856 1735 PaeTec Communications, Inc.
17974 1600 1562 PT Telekomunikasi Indonesia
7545 1629 1542 TPG Internet Pty Ltd
10620 1702 1519 Types of queries are: POCs, o
28573 1535 1463 Types of queries are: POCs, o
8402 1461 1446 Corbina telecom
22773 1506 1402 Cox Communications Inc.
4755 1499 1341 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 /14:806 /15:1432 /16:11999 /17:6090 /18:10104
/19:20155 /20:27709 /21:27931 /22:37853 /23:35403 /24:196795
/25:11 /26:21 /27:21 /28:151 /29:131 /30:65
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2559 2946 Windstream Communications Inc
6389 2126 3484 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
10620 1597 1702 Types of queries are: POCs, o
8402 1436 1461 Corbina telecom
30036 1394 1434 Mediacom Communications Corp
11492 1119 1156 CABLE ONE, INC.
1785 1058 1856 PaeTec Communications, Inc.
7011 1052 1169 Frontier Communications of Am
22773 966 1506 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:450 2:454 4:15 5:1 6:3 8:359
12:1946 13:1 14:551 15:11 16:3 17:7
20:9 23:73 24:1690 27:1052 31:716 32:62
33:2 34:2 36:4 38:767 40:114 41:2905
42:66 44:3 46:1112 47:2 49:292 50:452
52:13 55:6 56:2 57:45 58:870 59:480
60:355 61:1074 62:918 63:1965 64:4028 65:2303
66:4357 67:1997 68:1173 69:3143 70:902 71:361
72:1770 74:2639 75:430 76:319 77:908 78:875
79:435 80:1142 81:845 82:530 83:529 84:470
85:1164 86:417 87:913 88:341 89:1585 90:246
91:4308 92:531 93:1412 94:1328 95:1098 96:390
97:285 98:766 99:37 101:121 103:521 106:7
107:102 108:90 109:1120 110:667 111:813 112:361
113:486 114:610 115:683 116:874 117:693 118:860
119:1275 120:346 121:651 122:1567 123:1016 124:1295
125:1300 128:241 129:176 130:177 131:575 132:148
133:21 134:213 135:54 136:211 137:144 138:287
139:121 140:465 141:252 142:363 143:393 144:496
145:66 146:467 147:222 148:619 149:269 150:159
151:192 152:446 153:171 154:6 155:396 156:207
157:324 158:156 159:452 160:331 161:204 162:361
163:167 164:514 165:360 166:541 167:454 168:817
169:145 170:824 171:90 172:4 173:1765 174:576
175:404 176:322 177:410 178:1144 180:1179 181:38
182:657 183:242 184:402 185:1 186:1463 187:784
188:949 189:1163 190:5264 192:5917 193:5122 194:3557
195:3119 196:1258 197:170 198:3569 199:4168 200:5419
201:1693 202:8251 203:8401 204:4242 205:2366 206:2581
207:2765 208:3998 209:3528 210:2659 211:1445 212:1985
213:1805 214:802 215:91 216:4907 217:1489 218:558
219:333 220:1215 221:505 222:296 223:230
End of report
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