Routing Table Report 08:00 +10GMT Sat 06 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 360716
Prefixes after maximum aggregation: 163967
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181897
Total ASes present in the Internet Routing Table: 36935
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 31855
Origin ASes announcing only one prefix: 15347
Transit ASes present in the Internet Routing Table: 5080
Transit-only ASes present in the Internet Routing Table: 131
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: 2404
Unregistered ASNs in the Routing Table: 673
Number of 32-bit ASNs allocated by the RIRs: 1620
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3026
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2506824704
Equivalent to 149 /8s, 107 /16s and 28 /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: 149032
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87121
Total APNIC prefixes after maximum aggregation: 28950
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 84516
Unique aggregates announced from the APNIC address blocks: 37784
APNIC Region origin ASes present in the Internet Routing Table: 4479
APNIC Prefixes per ASN: 18.87
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 4.0
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: 622704128
Equivalent to 37 /8s, 29 /16s and 182 /24s
Percentage of available APNIC address space announced: 79.0
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: 140581
Total ARIN prefixes after maximum aggregation: 72653
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 112785
Unique aggregates announced from the ARIN address blocks: 46829
ARIN Region origin ASes present in the Internet Routing Table: 14465
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5568
ARIN Region transit ASes present in the Internet Routing Table: 1465
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: 803230976
Equivalent to 47 /8s, 224 /16s and 85 /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: 87640
Total RIPE prefixes after maximum aggregation: 49526
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80899
Unique aggregates announced from the RIPE address blocks: 53216
RIPE Region origin ASes present in the Internet Routing Table: 15846
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7916
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: 484743168
Equivalent to 28 /8s, 228 /16s and 152 /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: 33367
Total LACNIC prefixes after maximum aggregation: 7517
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 32796
Unique aggregates announced from the LACNIC address blocks: 17274
LACNIC Region origin ASes present in the Internet Routing Table: 1483
LACNIC Prefixes per ASN: 22.11
LACNIC Region origin ASes announcing only one prefix: 449
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: 87434752
Equivalent to 5 /8s, 54 /16s and 38 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8285
Total AfriNIC prefixes after maximum aggregation: 1989
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6539
Unique aggregates announced from the AfriNIC address blocks: 2059
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 26919936
Equivalent to 1 /8s, 154 /16s and 196 /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 1927 11037 642 Korea Telecom (KIX)
7545 1558 301 84 TPG Internet Pty Ltd
17974 1554 516 31 PT Telekomunikasi Indonesia
4755 1514 375 167 TATA Communications formerly
24560 1196 336 187 Bharti Airtel Ltd., Telemedia
9829 1114 929 42 National Internet Backbone
9583 1070 78 491 Sify Limited
7552 999 1062 11 Vietel Corporation
17488 978 188 123 Hathway IP Over Cable Interne
4808 954 2008 275 CNCGROUP IP network China169
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 3585 3818 232 BellSouth.net Inc.
18566 1911 364 238 Covad Communications Co.
1785 1818 681 121 PaeTec Communications, Inc.
7029 1644 1031 210 Windstream Communications Inc
4323 1616 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
19262 1413 4792 392 Verizon Online LLC
22773 1404 2900 90 Cox Communications Inc.
7018 1366 7085 895 AT&T Services, Inc.
2386 1255 520 904 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 510 1788 316 UPC Broadband
20940 471 134 364 Akamai Technologies European
3292 470 2080 405 TDC Data Networks
12479 454 593 7 France Telecom Espana SA
8866 452 133 26 Bulgarian Telecommunication C
29049 433 32 54 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 1565 289 163 Types of queries are: POCs, o
28573 1266 996 67 Types of queries are: POCs, o
8151 1257 2748 351 Uninet S.A. de C.V.
7303 1044 577 163 Telecom Argentina S.A.
6503 754 450 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 512 101 91 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 801 147 40 LINKdotNET AS number
8452 797 445 11 TEDATA
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
15706 230 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
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 3585 3818 232 BellSouth.net Inc.
23456 3026 728 1623 32-bit ASN transition
4766 1927 11037 642 Korea Telecom (KIX)
18566 1911 364 238 Covad Communications Co.
1785 1818 681 121 PaeTec Communications, Inc.
7029 1644 1031 210 Windstream Communications Inc
4323 1616 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
10620 1565 289 163 Types of queries are: POCs, o
7545 1558 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 1818 1697 PaeTec Communications, Inc.
18566 1911 1673 Covad Communications Co.
17974 1554 1523 PT Telekomunikasi Indonesia
7545 1558 1474 TPG Internet Pty Ltd
7029 1644 1434 Windstream Communications Inc
23456 3026 1403 32-bit ASN transition
10620 1565 1402 Types of queries are: POCs, o
4755 1514 1347 TATA Communications formerly
22773 1404 1314 Cox Communications Inc.
4766 1927 1285 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
31.192.96.0/21 44611 Talk Internet
31.209.136.0/21 51896 Hringdu ehf
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /14:799 /15:1410 /16:12015 /17:5888 /18:9864
/19:19614 /20:26360 /21:26335 /22:34752 /23:33707 /24:188622
/25:12 /26:20 /27:23 /28:158 /29:110 /30:59
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2212 3585 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1490 3026 32-bit ASN transition
10620 1460 1565 Types of queries are: POCs, o
7029 1322 1644 Windstream Communications Inc
11492 1096 1142 CABLE ONE, INC.
7011 1058 1160 Frontier Communications of Am
1785 1053 1818 PaeTec Communications, Inc.
6478 933 961 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)
----------------------------------------------
1:347 2:44 4:15 5:1 6:3 8:338
12:1960 13:1 14:491 15:15 16:3 17:5
20:10 23:19 24:1673 27:861 31:515 32:59
33:4 34:2 36:4 38:723 40:106 41:2562
42:37 44:3 46:1066 47:3 49:202 50:384
52:13 54:2 55:4 56:2 57:34 58:821
59:487 60:376 61:1024 62:1056 63:1926 64:3971
65:2295 66:3882 67:1891 68:1092 69:3037 70:771
71:372 72:1866 74:2423 75:327 76:340 77:861
78:705 79:483 80:1121 81:839 82:509 83:465
84:684 85:1075 86:516 87:837 88:335 89:1529
90:224 91:4006 92:525 93:1122 94:1333 95:866
96:415 97:265 98:918 99:37 100:1 101:80
103:186 106:79 107:30 108:72 109:1039 110:613
111:720 112:300 113:403 114:559 115:666 116:972
117:663 118:821 119:1163 120:209 121:654 122:1606
123:983 124:1336 125:1284 128:208 129:165 130:165
131:570 132:92 133:21 134:206 135:52 136:213
137:135 138:296 139:113 140:460 141:271 142:364
143:423 144:484 145:58 146:450 147:213 148:613
149:251 150:149 151:190 152:345 153:182 154:4
155:397 156:196 157:323 158:139 159:390 160:313
161:197 162:307 163:153 164:513 165:364 166:531
167:432 168:736 169:151 170:837 171:81 172:1
173:1625 174:619 175:380 176:148 177:195 178:1014
180:904 181:26 182:496 183:237 184:360 185:1
186:1348 187:731 188:905 189:972 190:5093 192:5873
193:4979 194:3505 195:3056 196:1204 197:113 198:3537
199:3972 200:5477 201:1470 202:8215 203:8373 204:4177
205:2297 206:2585 207:2731 208:3984 209:3383 210:2619
211:1400 212:2106 213:1754 214:791 215:70 216:4862
217:1628 218:519 219:343 220:1197 221:469 222:311
223:237
End of report
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