Routing Table Report 08:00 +10GMT Thu 04 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 359229
Prefixes after maximum aggregation: 164388
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 182023
Total ASes present in the Internet Routing Table: 36873
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31792
Origin ASes announcing only one prefix: 15313
Transit ASes present in the Internet Routing Table: 5081
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: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2395
Unregistered ASNs in the Routing Table: 663
Number of 32-bit ASNs allocated by the RIRs: 1612
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2963
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2505222912
Equivalent to 149 /8s, 82 /16s and 171 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 148778
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86003
Total APNIC prefixes after maximum aggregation: 29471
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 83376
Unique aggregates announced from the APNIC address blocks: 38162
APNIC Region origin ASes present in the Internet Routing Table: 4458
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 676
Average APNIC Region AS path length visible: 4.1
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: 621048832
Equivalent to 37 /8s, 4 /16s and 116 /24s
Percentage of available APNIC address space announced: 78.8
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: 140565
Total ARIN prefixes after maximum aggregation: 72579
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112752
Unique aggregates announced from the ARIN address blocks: 46781
ARIN Region origin ASes present in the Internet Routing Table: 14450
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5555
ARIN Region transit ASes present in the Internet Routing Table: 1459
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803583744
Equivalent to 47 /8s, 229 /16s and 183 /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: 87516
Total RIPE prefixes after maximum aggregation: 49520
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80794
Unique aggregates announced from the RIPE address blocks: 53089
RIPE Region origin ASes present in the Internet Routing Table: 15824
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7895
RIPE Region transit ASes present in the Internet Routing Table: 2491
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484686336
Equivalent to 28 /8s, 227 /16s and 186 /24s
Percentage of available RIPE address space announced: 78.1
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: 33266
Total LACNIC prefixes after maximum aggregation: 7536
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32671
Unique aggregates announced from the LACNIC address blocks: 17269
LACNIC Region origin ASes present in the Internet Routing Table: 1482
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 87323392
Equivalent to 5 /8s, 52 /16s and 115 /24s
Percentage of available LACNIC address space announced: 57.8
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: 8224
Total AfriNIC prefixes after maximum aggregation: 1984
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6514
Unique aggregates announced from the AfriNIC address blocks: 2020
AfriNIC Region origin ASes present in the Internet Routing Table: 478
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26907648
Equivalent to 1 /8s, 154 /16s and 148 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1930 11038 644 Korea Telecom (KIX)
7545 1557 301 84 TPG Internet Pty Ltd
17974 1539 508 32 PT Telekomunikasi Indonesia
24560 1196 336 187 Bharti Airtel Ltd., Telemedia
4755 1081 173 415 TATA Communications formerly
9583 1058 77 496 Sify Limited
7552 998 1062 11 Vietel Corporation
4808 955 2009 276 CNCGROUP IP network China169
17488 952 180 133 Hathway IP Over Cable Interne
18101 934 116 139 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 3625 3818 237 BellSouth.net Inc.
18566 1912 364 239 Covad Communications Co.
1785 1813 681 121 PaeTec Communications, Inc.
7029 1646 1031 210 Windstream Communications Inc
4323 1616 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
19262 1414 4792 392 Verizon Online LLC
22773 1404 2900 90 Cox Communications Inc.
7018 1364 7085 892 AT&T Services, Inc.
2386 1257 520 905 AT&T Data Communications Serv
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 540 326 31 Goldenlines main autonomous s
34984 534 106 185 BILISIM TELEKOM
6830 511 1788 316 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 467 133 360 Akamai Technologies European
12479 456 593 7 France Telecom Espana SA
8866 454 133 26 Bulgarian Telecommunication C
29049 434 32 54 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
8551 405 355 38 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 1567 289 166 Types of queries are: POCs, o
28573 1256 996 67 Types of queries are: POCs, o
8151 1254 2732 350 Uninet S.A. de C.V.
7303 1044 577 163 Telecom Argentina S.A.
6503 753 451 78 Axtel, S.A.B. de C.V.
14420 703 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 511 101 90 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 797 445 11 TEDATA
24863 758 147 40 LINKdotNET AS number
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 229 13 8 Starcomms Nigeria Limited
15706 184 32 6 Sudatel Internet Exchange Aut
24835 176 78 10 RAYA Telecom - Egypt
29571 158 17 11 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
6389 3625 3818 237 BellSouth.net Inc.
23456 2963 719 1606 32-bit ASN transition
4766 1930 11038 644 Korea Telecom (KIX)
18566 1912 364 239 Covad Communications Co.
1785 1813 681 121 PaeTec Communications, Inc.
7029 1646 1031 210 Windstream Communications Inc
4323 1616 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
10620 1567 289 166 Types of queries are: POCs, o
7545 1557 301 84 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
1785 1813 1692 PaeTec Communications, Inc.
18566 1912 1673 Covad Communications Co.
17974 1539 1507 PT Telekomunikasi Indonesia
7545 1557 1473 TPG Internet Pty Ltd
7029 1646 1436 Windstream Communications Inc
10620 1567 1401 Types of queries are: POCs, o
23456 2963 1357 32-bit ASN transition
22773 1404 1314 Cox Communications Inc.
4766 1930 1286 Korea Telecom (KIX)
4323 1616 1215 tw telecom holdings, 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
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.
26973 UNALLOCATED 12.39.152.0/24 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 65535 Internet Assigned Numbers Aut
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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
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
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 /8:21 /9:12 /10:27 /11:80 /12:234
/13:465 /14:798 /15:1410 /16:12010 /17:5873 /18:9738
/19:19599 /20:26169 /21:26222 /22:34616 /23:33540 /24:187908
/25:12 /26:20 /27:23 /28:156 /29:113 /30:59
/31:0 /32:124
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2247 3625 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
23456 1480 2963 32-bit ASN transition
10620 1462 1567 Types of queries are: POCs, o
7029 1322 1646 Windstream Communications Inc
11492 1096 1142 CABLE ONE, INC.
7011 1057 1159 Frontier Communications of Am
1785 1051 1813 PaeTec Communications, Inc.
6478 950 978 AT&T Services, Inc.
22773 903 1404 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:338 2:47 4:15 5:1 6:3 8:339
12:1961 13:1 14:486 15:15 16:3 17:5
20:10 23:18 24:1676 27:857 31:514 32:59
33:4 34:2 36:4 38:722 40:104 41:2557
42:36 44:3 46:1064 47:3 49:183 50:382
52:13 54:2 55:4 56:2 57:34 58:826
59:446 60:368 61:1021 62:1057 63:1922 64:3965
65:2299 66:3890 67:1886 68:1104 69:3029 70:773
71:373 72:1862 74:2427 75:328 76:339 77:861
78:703 79:484 80:1123 81:839 82:505 83:468
84:684 85:1074 86:517 87:768 88:333 89:1532
90:224 91:3991 92:527 93:1116 94:1336 95:864
96:415 97:263 98:892 99:37 101:80 103:176
106:79 107:29 108:73 109:1037 110:607 111:625
112:300 113:395 114:516 115:655 116:954 117:660
118:812 119:1162 120:311 121:631 122:1603 123:983
124:1335 125:1276 128:208 129:163 130:164 131:574
132:94 133:21 134:206 135:52 136:213 137:135
138:296 139:113 140:460 141:269 142:365 143:422
144:478 145:56 146:447 147:214 148:614 149:250
150:152 151:190 152:344 153:182 154:4 155:399
156:195 157:324 158:138 159:389 160:315 161:197
162:307 163:153 164:507 165:364 166:528 167:431
168:739 169:151 170:835 171:81 172:1 173:1620
174:618 175:371 176:148 177:195 178:1010 180:900
181:26 182:486 183:215 184:357 185:1 186:1324
187:749 188:900 189:970 190:5026 192:5861 193:4974
194:3502 195:3061 196:1186 197:112 198:3533 199:3972
200:5479 201:1470 202:8123 203:8201 204:4177 205:2292
206:2583 207:2736 208:3993 209:3380 210:2593 211:1445
212:2106 213:1768 214:792 215:70 216:4871 217:1627
218:538 219:333 220:1196 221:496 222:311 223:234
End of report
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