Routing Table Report 08:00 +10GMT Sun 24 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358808
Prefixes after maximum aggregation: 163554
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180820
Total ASes present in the Internet Routing Table: 36819
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 31757
Origin ASes announcing only one prefix: 15305
Transit ASes present in the Internet Routing Table: 5062
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2325
Unregistered ASNs in the Routing Table: 631
Number of 32-bit ASNs allocated by the RIRs: 1585
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2930
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2501316608
Equivalent to 149 /8s, 23 /16s and 16 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 148152
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86464
Total APNIC prefixes after maximum aggregation: 29005
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84082
Unique aggregates announced from the APNIC address blocks: 37485
APNIC Region origin ASes present in the Internet Routing Table: 4468
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 680
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: 621713664
Equivalent to 37 /8s, 14 /16s and 153 /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: 140452
Total ARIN prefixes after maximum aggregation: 72530
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112632
Unique aggregates announced from the ARIN address blocks: 46661
ARIN Region origin ASes present in the Internet Routing Table: 14432
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5551
ARIN Region transit ASes present in the Internet Routing Table: 1455
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: 802736896
Equivalent to 47 /8s, 216 /16s and 203 /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: 86965
Total RIPE prefixes after maximum aggregation: 49267
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80332
Unique aggregates announced from the RIPE address blocks: 52933
RIPE Region origin ASes present in the Internet Routing Table: 15797
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7889
RIPE Region transit ASes present in the Internet Routing Table: 2485
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484070912
Equivalent to 28 /8s, 218 /16s and 86 /24s
Percentage of available RIPE address space announced: 78.0
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: 33075
Total LACNIC prefixes after maximum aggregation: 7548
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32438
Unique aggregates announced from the LACNIC address blocks: 17112
LACNIC Region origin ASes present in the Internet Routing Table: 1476
LACNIC Prefixes per ASN: 21.98
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 86382848
Equivalent to 5 /8s, 38 /16s and 25 /24s
Percentage of available LACNIC address space announced: 57.2
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: 8227
Total AfriNIC prefixes after maximum aggregation: 1967
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6542
Unique aggregates announced from the AfriNIC address blocks: 1996
AfriNIC Region origin ASes present in the Internet Routing Table: 471
AfriNIC Prefixes per ASN: 13.89
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 24492544
Equivalent to 1 /8s, 117 /16s and 186 /24s
Percentage of available AfriNIC address space announced: 36.5
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 1914 11037 637 Korea Telecom (KIX)
17974 1557 508 32 PT Telekomunikasi Indonesia
7545 1553 301 84 TPG Internet Pty Ltd
4755 1503 375 170 TATA Communications formerly
24560 1161 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 National Internet Backbone
9583 1056 77 497 Sify Limited
17488 963 188 112 Hathway IP Over Cable Interne
4808 949 2003 274 CNCGROUP IP network China169
18101 933 116 139 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 3616 3818 239 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1814 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
19262 1411 4760 391 Verizon Online LLC
7029 1391 1031 209 Windstream Communications Inc
7018 1374 7101 900 AT&T Services, Inc.
22773 1352 2897 89 Cox Communications Inc.
2386 1259 521 907 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 460 132 355 Akamai Technologies European
12479 454 593 7 France Telecom Espana SA
8866 453 133 26 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 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 1559 287 163 Types of queries are: POCs, o
28573 1269 995 78 Types of queries are: POCs, o
8151 1252 2728 348 Uninet S.A. de C.V.
7303 991 514 166 Telecom Argentina S.A.
6503 741 354 74 Axtel, S.A.B. de C.V.
14420 700 56 85 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
14117 498 45 43 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
36992 824 489 19 Etisalat MISR
8452 814 445 11 TEDATA
24863 795 147 40 LINKdotNET AS number
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 161 78 10 RAYA Telecom - Egypt
15706 158 32 6 Sudatel Internet Exchange Aut
29571 158 17 11 Ci Telecom Autonomous system
16637 149 441 87 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 3616 3818 239 BellSouth.net Inc.
23456 2930 711 1575 32-bit ASN transition
4766 1914 11037 637 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications Co.
1785 1814 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
10620 1559 287 163 Types of queries are: POCs, o
17974 1557 508 32 PT Telekomunikasi Indonesia
7545 1553 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 1814 1692 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1557 1525 PT Telekomunikasi Indonesia
7545 1553 1469 TPG Internet Pty Ltd
10620 1559 1396 Types of queries are: POCs, o
23456 2930 1355 32-bit ASN transition
4755 1503 1333 TATA Communications formerly
4766 1914 1277 Korea Telecom (KIX)
22773 1352 1263 Cox Communications Inc.
4323 1615 1213 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 /12:233
/13:465 /14:797 /15:1402 /16:12007 /17:5865 /18:9779
/19:19613 /20:26014 /21:26164 /22:34618 /23:33474 /24:187725
/25:12 /26:19 /27:23 /28:160 /29:106 /30:59
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2235 3616 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1454 1559 Types of queries are: POCs, o
23456 1449 2930 32-bit ASN transition
11492 1096 1142 CABLE ONE, INC.
7029 1071 1391 Windstream Communications Inc
7011 1055 1157 Frontier Communications of Am
1785 1054 1814 PaeTec Communications, Inc.
6478 997 1025 AT&T Services, Inc.
22773 867 1352 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:333 2:45 4:16 5:1 6:3 8:338
12:1962 13:1 14:482 15:15 16:3 17:5
20:10 23:14 24:1677 27:836 31:503 32:59
33:4 34:2 36:4 38:725 40:104 41:2614
42:35 44:3 46:1048 47:3 49:202 50:383
52:13 54:2 55:4 56:2 57:33 58:816
59:476 60:379 61:1019 62:1032 63:1926 64:3965
65:2296 66:3864 67:1885 68:1100 69:3054 70:765
71:373 72:1868 74:2417 75:323 76:340 77:852
78:706 79:475 80:1112 81:841 82:504 83:468
84:691 85:1063 86:517 87:765 88:334 89:1536
90:224 91:3952 92:526 93:1060 94:1340 95:864
96:415 97:263 98:891 99:37 101:72 103:143
106:75 107:25 108:73 109:1022 110:608 111:712
112:298 113:407 114:557 115:665 116:963 117:666
118:820 119:1161 120:314 121:651 122:1601 123:966
124:1269 125:1231 128:208 129:163 130:164 131:577
132:104 133:21 134:206 135:52 136:213 137:136
138:300 139:114 140:459 141:252 142:387 143:412
144:472 145:54 146:447 147:212 148:602 149:248
150:152 151:189 152:335 153:182 154:4 155:393
156:195 157:321 158:140 159:387 160:313 161:195
162:307 163:156 164:506 165:363 166:531 167:433
168:735 169:151 170:845 171:80 172:1 173:1613
174:624 175:367 176:144 177:170 178:1008 180:897
181:23 182:495 183:233 184:341 185:1 186:1306
187:729 188:892 189:949 190:4986 192:5867 193:4975
194:3512 195:3013 196:1207 197:43 198:3528 199:3938
200:5492 201:1472 202:8204 203:8347 204:4149 205:2310
206:2581 207:2733 208:3982 209:3412 210:2590 211:1437
212:2099 213:1737 214:757 215:70 216:4923 217:1652
218:534 219:343 220:1195 221:481 222:311 223:219
End of report
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