Routing Table Report 08:00 +10GMT Thu 29 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 396499
Prefixes after maximum aggregation: 169496
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195575
Total ASes present in the Internet Routing Table: 38222
Prefixes per ASN: 10.37
Origin-only ASes present in the Internet Routing Table: 32967
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5255
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1367
Unregistered ASNs in the Routing Table: 340
Number of 32-bit ASNs allocated by the RIRs: 2338
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5193
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1185
Number of addresses announced to Internet: 2547566592
Equivalent to 151 /8s, 216 /16s and 200 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 68.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 166931
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93183
Total APNIC prefixes after maximum aggregation: 30685
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90586
Unique aggregates announced from the APNIC address blocks: 39221
APNIC Region origin ASes present in the Internet Routing Table: 4633
APNIC Prefixes per ASN: 19.55
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 699
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642057216
Equivalent to 38 /8s, 69 /16s and 4 /24s
Percentage of available APNIC address space announced: 81.4
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: 148050
Total ARIN prefixes after maximum aggregation: 75322
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119678
Unique aggregates announced from the ARIN address blocks: 49921
ARIN Region origin ASes present in the Internet Routing Table: 14878
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5678
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: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805310208
Equivalent to 48 /8s, 0 /16s and 15 /24s
Percentage of available ARIN address space announced: 64.0
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: 101012
Total RIPE prefixes after maximum aggregation: 53134
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92364
Unique aggregates announced from the RIPE address blocks: 57181
RIPE Region origin ASes present in the Internet Routing Table: 16341
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 7961
RIPE Region transit ASes present in the Internet Routing Table: 2583
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502284032
Equivalent to 29 /8s, 240 /16s and 63 /24s
Percentage of available RIPE address space announced: 80.9
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: 39505
Total LACNIC prefixes after maximum aggregation: 8015
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 39204
Unique aggregates announced from the LACNIC address blocks: 19723
LACNIC Region origin ASes present in the Internet Routing Table: 1559
LACNIC Prefixes per ASN: 25.15
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98681344
Equivalent to 5 /8s, 225 /16s and 194 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8565
Total AfriNIC prefixes after maximum aggregation: 2112
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6640
Unique aggregates announced from the AfriNIC address blocks: 2156
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 12.72
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.5
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: 31497984
Equivalent to 1 /8s, 224 /16s and 159 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1929 11106 679 Korea Telecom (KIX)
17974 1706 502 60 PT Telekomunikasi Indonesia
7545 1653 301 89 TPG Internet Pty Ltd
4755 1553 385 158 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1209 1025 29 National Internet Backbone
7552 1112 1062 11 Vietel Corporation
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
4808 983 1946 282 CNCGROUP IP network China169
18101 949 131 160 Reliance Infocom Ltd Internet
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
7029 3410 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
1785 1890 680 128 PaeTec Communications, Inc.
20115 1636 1559 626 Charter Communications
4323 1602 1076 382 tw telecom holdings, inc.
22773 1550 2910 111 Cox Communications Inc.
30036 1414 256 744 Mediacom Communications Corp
7018 1288 9807 838 AT&T Services, Inc.
11492 1184 216 364 CABLE ONE, 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 1667 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
31148 673 37 9 FreeNet ISP
34984 666 188 173 BILISIM TELEKOM
12479 652 658 57 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 630 205 495 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 Deutsche Telekom AG
8551 500 360 81 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 1808 329 126 Types of queries are: POCs, o
28573 1746 1105 58 Types of queries are: POCs, o
7303 1351 826 190 Telecom Argentina S.A.
8151 1350 3000 341 Uninet S.A. de C.V.
6503 1335 418 66 Axtel, S.A.B. de C.V.
26615 902 700 28 Tim Celular S.A.
27947 665 74 100 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 567 242 104 Types of queries are: POCs, o
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 1052 958 13 TEDATA
24863 843 274 34 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 269 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 189 12 20 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 MTN Network Solutions
29571 159 15 16 Ci Telecom Autonomous system
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
7029 3410 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
4766 1929 11106 679 Korea Telecom (KIX)
1785 1890 680 128 PaeTec Communications, Inc.
10620 1808 329 126 Types of queries are: POCs, o
28573 1746 1105 58 Types of queries are: POCs, o
17974 1706 502 60 PT Telekomunikasi Indonesia
8402 1667 544 16 Corbina telecom
7545 1653 301 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3372 3175 BellSouth.net Inc.
18566 2093 1914 Covad Communications Co.
1785 1890 1762 PaeTec Communications, Inc.
28573 1746 1688 Types of queries are: POCs, o
10620 1808 1682 Types of queries are: POCs, o
8402 1667 1651 Corbina telecom
17974 1706 1646 PT Telekomunikasi Indonesia
7545 1653 1564 TPG Internet Pty Ltd
22773 1550 1439 Cox Communications Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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.
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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.28.192.0/18 29737 WideOpenWest Finance LLC
23.29.0.0/20 4323 tw telecom holdings, inc.
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 /10:28 /11:81 /12:235
/13:458 /14:830 /15:1478 /16:12142 /17:6247 /18:10391
/19:20567 /20:28593 /21:29385 /22:39755 /23:37117 /24:208601
/25:11 /26:21 /27:19 /28:154 /29:143 /30:69
/31:0 /32:142
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3053 3410 Windstream Communications Inc
6389 2088 3372 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
10620 1705 1808 Types of queries are: POCs, o
8402 1644 1667 Corbina telecom
30036 1358 1414 Mediacom Communications Corp
11492 1147 1184 CABLE ONE, INC.
6503 1107 1335 Axtel, S.A.B. de C.V.
1785 1067 1890 PaeTec Communications, Inc.
7011 1050 1164 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:528 2:676 4:14 6:3 8:391 12:1979
13:1 14:597 15:12 16:3 17:7 20:8
23:157 24:1752 27:1254 31:959 32:53 33:2
34:2 36:8 37:302 38:784 40:120 41:2832
42:132 44:3 46:1461 47:3 49:339 50:537
52:12 54:6 55:11 56:3 57:29 58:920
59:486 60:275 61:1091 62:969 63:1988 64:4174
65:2274 66:4494 67:2014 68:1145 69:3183 70:902
71:465 72:1821 74:2596 75:493 76:319 77:953
78:988 79:495 80:1213 81:898 82:667 83:548
84:518 85:1196 86:416 87:917 88:343 89:1621
90:297 91:4639 92:518 93:1373 94:1458 95:1146
96:370 97:315 98:838 99:37 100:6 101:160
103:898 106:65 107:179 108:213 109:1268 110:740
111:901 112:432 113:546 114:621 115:770 116:884
117:702 118:910 119:1189 120:337 121:674 122:1625
123:1099 124:1298 125:1259 128:517 129:184 130:250
131:593 132:165 133:21 134:233 135:63 136:211
137:186 138:351 139:144 140:468 141:240 142:369
143:405 144:496 145:69 146:481 147:247 148:735
149:297 150:149 151:176 152:457 153:171 154:6
155:445 156:212 157:335 158:171 159:452 160:340
161:231 162:340 163:177 164:551 165:388 166:561
167:464 168:802 169:127 170:847 171:125 172:4
173:1719 174:615 175:422 176:457 177:593 178:1293
180:1146 181:72 182:747 183:277 184:441 185:1
186:2147 187:1004 188:1161 189:1684 190:5506 192:5956
193:5592 194:4616 195:3593 196:1262 197:124 198:3574
199:4426 200:5702 201:1893 202:8193 203:8497 204:4268
205:2447 206:2650 207:2720 208:4042 209:3590 210:2672
211:1442 212:1994 213:1909 214:870 215:106 216:5048
217:1521 218:524 219:323 220:1227 221:538 222:297
223:315
End of report
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