Routing Table Report 08:00 +10GMT Wed 03 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 360175
Prefixes after maximum aggregation: 163985
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181568
Total ASes present in the Internet Routing Table: 36904
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 31819
Origin ASes announcing only one prefix: 15321
Transit ASes present in the Internet Routing Table: 5085
Transit-only ASes present in the Internet Routing Table: 135
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: 2383
Unregistered ASNs in the Routing Table: 656
Number of 32-bit ASNs allocated by the RIRs: 1609
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3008
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2505962240
Equivalent to 149 /8s, 93 /16s and 243 /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: 148641
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87008
Total APNIC prefixes after maximum aggregation: 29085
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 84469
Unique aggregates announced from the APNIC address blocks: 37684
APNIC Region origin ASes present in the Internet Routing Table: 4476
APNIC Prefixes per ASN: 18.87
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 679
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: 622029824
Equivalent to 37 /8s, 19 /16s and 108 /24s
Percentage of available APNIC address space announced: 78.9
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: 140537
Total ARIN prefixes after maximum aggregation: 72612
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112692
Unique aggregates announced from the ARIN address blocks: 46763
ARIN Region origin ASes present in the Internet Routing Table: 14451
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: 1457
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: 803336960
Equivalent to 47 /8s, 225 /16s and 243 /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: 87528
Total RIPE prefixes after maximum aggregation: 49455
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80819
Unique aggregates announced from the RIPE address blocks: 53124
RIPE Region origin ASes present in the Internet Routing Table: 15836
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7906
RIPE Region transit ASes present in the Internet Routing Table: 2499
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: 484470272
Equivalent to 28 /8s, 224 /16s and 110 /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: 33118
Total LACNIC prefixes after maximum aggregation: 7539
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32532
Unique aggregates announced from the LACNIC address blocks: 17261
LACNIC Region origin ASes present in the Internet Routing Table: 1482
LACNIC Prefixes per ASN: 21.95
LACNIC Region origin ASes announcing only one prefix: 444
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: 87282176
Equivalent to 5 /8s, 51 /16s and 210 /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: 8281
Total AfriNIC prefixes after maximum aggregation: 1979
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6567
Unique aggregates announced from the AfriNIC address blocks: 2021
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.83
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 3.4
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: 26875904
Equivalent to 1 /8s, 154 /16s and 24 /24s
Percentage of available AfriNIC address space announced: 40.0
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 1556 301 84 TPG Internet Pty Ltd
17974 1531 508 32 PT Telekomunikasi Indonesia
4755 1508 374 166 TATA Communications formerly
24560 1195 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 National Internet Backbone
9583 1058 77 496 Sify Limited
17488 974 186 120 Hathway IP Over Cable Interne
4808 955 2009 276 CNCGROUP IP network China169
7552 952 1062 11 Vietel Corporation
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 3617 3818 240 BellSouth.net Inc.
18566 1911 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 1588 1536 622 Charter Communications
19262 1413 4792 392 Verizon Online LLC
22773 1404 2900 90 Cox Communications Inc.
7018 1369 7085 897 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 444 133 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 1257 996 67 Types of queries are: POCs, o
8151 1255 2732 352 Uninet S.A. de C.V.
7303 1044 577 163 Telecom Argentina S.A.
6503 752 451 78 Axtel, S.A.B. de C.V.
14420 701 56 82 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
24863 799 147 40 LINKdotNET AS number
8452 798 445 11 TEDATA
15475 512 74 8 Nile Online
36992 313 415 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 177 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 3617 3818 240 BellSouth.net Inc.
23456 3008 724 1614 32-bit ASN transition
4766 1930 11038 644 Korea Telecom (KIX)
18566 1911 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 1588 1536 622 Charter Communications
10620 1567 289 166 Types of queries are: POCs, o
7545 1556 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 1911 1672 Covad Communications Co.
17974 1531 1499 PT Telekomunikasi Indonesia
7545 1556 1472 TPG Internet Pty Ltd
7029 1646 1436 Windstream Communications Inc
10620 1567 1401 Types of queries are: POCs, o
23456 3008 1394 32-bit ASN transition
4755 1508 1342 TATA Communications formerly
22773 1404 1314 Cox Communications Inc.
4766 1930 1286 Korea Telecom (KIX)
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
/13:461 /14:798 /15:1406 /16:12017 /17:5876 /18:9869
/19:19606 /20:26279 /21:26273 /22:34731 /23:33585 /24:188391
/25:12 /26:20 /27:23 /28:156 /29:110 /30:59
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2239 3617 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1479 3008 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 972 1000 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)
----------------------------------------------
1:343 2:47 4:15 5:1 6:3 8:339
12:1959 13:1 14:486 15:15 16:3 17:5
20:10 23:18 24:1677 27:864 31:511 32:59
33:4 34:2 36:4 38:722 40:104 41:2582
42:36 44:3 46:1048 47:3 49:199 50:380
52:13 54:2 55:5 56:2 57:31 58:850
59:482 60:376 61:1023 62:1059 63:1923 64:3956
65:2297 66:3892 67:1886 68:1103 69:3027 70:773
71:373 72:1860 74:2428 75:328 76:340 77:861
78:705 79:481 80:1122 81:842 82:508 83:465
84:687 85:1075 86:518 87:767 88:334 89:1536
90:224 91:3995 92:527 93:1116 94:1335 95:870
96:415 97:263 98:891 99:37 101:78 103:179
106:79 107:29 108:73 109:1031 110:611 111:718
112:300 113:403 114:555 115:664 116:968 117:655
118:821 119:1160 120:315 121:650 122:1603 123:983
124:1337 125:1282 128:208 129:163 130:164 131:576
132:94 133:21 134:206 135:52 136:211 137:135
138:296 139:113 140:459 141:257 142:387 143:430
144:482 145:57 146:448 147:214 148:616 149:251
150:151 151:190 152:339 153:182 154:4 155:399
156:196 157:324 158:140 159:390 160:316 161:196
162:307 163:153 164:507 165:364 166:531 167:432
168:737 169:151 170:835 171:81 172:1 173:1621
174:611 175:373 176:148 177:194 178:1009 180:880
181:26 182:494 183:234 184:341 185:1 186:1327
187:751 188:908 189:966 190:4968 192:5875 193:4978
194:3507 195:3060 196:1173 197:112 198:3531 199:3973
200:5461 201:1462 202:8204 203:8346 204:4173 205:2304
206:2578 207:2739 208:3984 209:3380 210:2596 211:1446
212:2110 213:1766 214:790 215:70 216:4872 217:1626
218:540 219:343 220:1197 221:495 222:307 223:235
End of report
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