Routing Table Report 08:00 +10GMT Wed 09 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 344655
Prefixes after maximum aggregation: 156677
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 172454
Total ASes present in the Internet Routing Table: 35878
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31033
Origin ASes announcing only one prefix: 14957
Transit ASes present in the Internet Routing Table: 4845
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1354
Unregistered ASNs in the Routing Table: 289
Number of 32-bit ASNs allocated by the RIRs: 1179
Prefixes from 32-bit ASNs in the Routing Table: 1823
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 252
Number of addresses announced to Internet: 2485078528
Equivalent to 148 /8s, 31 /16s and 74 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 141326
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82927
Total APNIC prefixes after maximum aggregation: 28295
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80542
Unique aggregates announced from the APNIC address blocks: 36216
APNIC Region origin ASes present in the Internet Routing Table: 4294
APNIC Prefixes per ASN: 18.76
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 655
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 595166720
Equivalent to 35 /8s, 121 /16s and 134 /24s
Percentage of available APNIC address space announced: 75.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 137182
Total ARIN prefixes after maximum aggregation: 70179
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109892
Unique aggregates announced from the ARIN address blocks: 44904
ARIN Region origin ASes present in the Internet Routing Table: 14161
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5400
ARIN Region transit ASes present in the Internet Routing Table: 1397
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796280320
Equivalent to 47 /8s, 118 /16s and 70 /24s
Percentage of available ARIN address space announced: 63.3
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: 83050
Total RIPE prefixes after maximum aggregation: 46930
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 76316
Unique aggregates announced from the RIPE address blocks: 49458
RIPE Region origin ASes present in the Internet Routing Table: 15393
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7778
RIPE Region transit ASes present in the Internet Routing Table: 2387
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 480925184
Equivalent to 28 /8s, 170 /16s and 86 /24s
Percentage of available RIPE address space announced: 77.5
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: 31533
Total LACNIC prefixes after maximum aggregation: 7283
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30543
Unique aggregates announced from the LACNIC address blocks: 16133
LACNIC Region origin ASes present in the Internet Routing Table: 1426
LACNIC Prefixes per ASN: 21.42
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81317632
Equivalent to 4 /8s, 216 /16s and 207 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7474
Total AfriNIC prefixes after maximum aggregation: 1825
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 5865
Unique aggregates announced from the AfriNIC address blocks: 1863
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21888512
Equivalent to 1 /8s, 77 /16s and 254 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1867 9501 591 Korea Telecom (KIX)
7545 1583 301 84 TPG Internet Pty Ltd
4755 1424 638 165 TATA Communications formerly
17974 1406 467 30 PT Telekomunikasi Indonesia
24560 1125 324 186 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
9829 1001 867 52 National Internet Backbone
17488 940 162 103 Hathway IP Over Cable Interne
4808 938 2032 271 CNCGROUP IP network China169
18101 934 117 141 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
6389 3682 3839 260 BellSouth.net Inc.
4323 2579 1125 404 tw telecom holdings, inc.
19262 1829 4953 282 Verizon Online LLC
1785 1793 697 131 PaeTec Communications, Inc.
6478 1532 298 91 AT&T Services, Inc.
20115 1527 1534 650 Charter Communications
18566 1520 325 178 Covad Communications Co.
7018 1381 6740 902 AT&T Services, Inc.
2386 1294 538 935 AT&T Data Communications Serv
11492 1292 236 68 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
9116 542 328 31 Goldenlines main autonomous s
6830 514 1780 318 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 450 1996 389 TDC Data Networks
8866 442 133 23 Bulgarian Telecommunication C
20940 419 99 323 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 404 7604 352 Deutsche Telekom AG
702 398 1803 312 >>UNKNOWN<<
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 1384 258 163 Types of queries are: POCs, o
8151 1225 2683 359 Uninet S.A. de C.V.
28573 1222 964 84 Types of queries are: POCs, o
6503 1168 354 74 Axtel, S.A.B. de C.V.
7303 888 463 134 Telecom Argentina S.A.
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 517 225 96 Types of queries are: POCs, o
7738 479 922 30 Telecomunicacoes da Bahia S.A
14117 468 36 38 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 780 445 11 TEDATA
24863 732 147 37 LINKdotNET AS number
15475 440 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 140 422 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 3682 3839 260 BellSouth.net Inc.
4323 2579 1125 404 tw telecom holdings, inc.
4766 1867 9501 591 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Online LLC
23456 1823 470 1032 32-bit ASN transition
1785 1793 697 131 PaeTec Communications, Inc.
7545 1583 301 84 TPG Internet Pty Ltd
6478 1532 298 91 AT&T Services, Inc.
20115 1527 1534 650 Charter Communications
18566 1520 325 178 Covad Communications Co.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2579 2175 tw telecom holdings, inc.
1785 1793 1662 PaeTec Communications, Inc.
19262 1829 1547 Verizon Online LLC
7545 1583 1499 TPG Internet Pty Ltd
6478 1532 1441 AT&T Services, Inc.
17974 1406 1376 PT Telekomunikasi Indonesia
18566 1520 1342 Covad Communications Co.
4766 1867 1276 Korea Telecom (KIX)
4755 1424 1259 TATA Communications formerly
11492 1292 1224 CABLE ONE, INC.
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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
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
1.5.0.0/16 38639 for assignment to JPNIC membe
1.6.0.0/15 38639 for assignment to JPNIC membe
1.8.0.0/16 38639 for assignment to JPNIC membe
1.20.0.0/16 38639 for assignment to JPNIC membe
1.32.0.0/16 38639 for assignment to JPNIC membe
1.37.0.0/16 38639 for assignment to JPNIC membe
1.187.0.0/16 38639 for assignment to JPNIC membe
14.0.0.0/24 38639 for assignment to JPNIC membe
14.0.1.0/24 38639 for assignment to JPNIC membe
14.0.2.0/23 38639 for assignment to JPNIC membe
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 /8:25 /9:11 /10:26 /11:73 /12:217
/13:445 /14:767 /15:1371 /16:11543 /17:5620 /18:9307
/19:19077 /20:24660 /21:25062 /22:33338 /23:31742 /24:180921
/25:11 /26:17 /27:24 /28:152 /29:92 /30:46
/31:0 /32:108
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3682 BellSouth.net Inc.
18566 1498 1520 Covad Communications Co.
6478 1486 1532 AT&T Services, Inc.
4323 1387 2579 tw telecom holdings, inc.
10620 1275 1384 Types of queries are: POCs, o
11492 1249 1292 CABLE ONE, INC.
1785 1055 1793 PaeTec Communications, Inc.
7011 1055 1156 Frontier Communications of Am
23456 1027 1823 32-bit ASN transition
6503 950 1168 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:263 2:43 4:14 5:1 8:340 12:2028
13:1 14:407 15:15 16:3 17:8 20:9
23:1 24:1459 27:602 31:4 32:56 33:4
34:2 36:2 37:1 38:706 39:1 40:101
41:2295 42:13 44:3 46:708 47:4 49:164
50:184 52:13 55:3 56:2 57:29 58:764
59:475 60:382 61:1012 62:1013 63:1921 64:3830
65:2347 66:4319 67:1779 68:1063 69:2876 70:699
71:407 72:2002 73:1 74:2340 75:291 76:341
77:846 78:699 79:433 80:1086 81:801 82:525
83:466 84:644 85:1043 86:573 87:764 88:357
89:1566 90:171 91:3585 92:497 93:1057 94:1228
95:771 96:466 97:252 98:809 99:34 101:47
106:1 107:4 108:129 109:907 110:477 111:712
112:309 113:390 114:489 115:661 116:942 117:676
118:677 119:1038 120:254 121:673 122:1617 123:1039
124:1275 125:1255 128:214 129:161 130:165 131:556
132:101 133:20 134:212 135:49 136:208 137:143
138:300 139:115 140:464 141:203 142:358 143:381
144:487 145:51 146:431 147:193 148:625 149:274
150:161 151:230 152:296 153:180 154:2 155:377
156:176 157:315 158:131 159:364 160:311 161:201
162:277 163:150 164:486 165:339 166:501 167:410
168:722 169:155 170:754 171:69 172:2 173:1250
174:521 175:325 177:35 178:792 180:801 181:4
182:388 183:243 184:226 186:1039 187:810 188:908
189:1032 190:4570 192:5719 193:4786 194:3490 195:2941
196:1192 197:4 198:3500 199:3823 200:5552 201:1578
202:8039 203:8346 204:4030 205:2289 206:2548 207:2994
208:3890 209:3454 210:2600 211:1345 212:1943 213:1730
214:759 215:63 216:4819 217:1653 218:537 219:371
220:1194 221:460 222:313 223:99
End of report
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