Routing Table Report 08:00 +10GMT Wed 31 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 363532
Prefixes after maximum aggregation: 165034
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 183017
Total ASes present in the Internet Routing Table: 37095
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32009
Origin ASes announcing only one prefix: 15390
Transit ASes present in the Internet Routing Table: 5086
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: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 2527
Unregistered ASNs in the Routing Table: 745
Number of 32-bit ASNs allocated by the RIRs: 1685
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3155
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2488405248
Equivalent to 148 /8s, 82 /16s and 13 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 150120
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88174
Total APNIC prefixes after maximum aggregation: 29242
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 85608
Unique aggregates announced from the APNIC address blocks: 37976
APNIC Region origin ASes present in the Internet Routing Table: 4501
APNIC Prefixes per ASN: 19.02
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 3.9
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: 624766976
Equivalent to 37 /8s, 61 /16s and 48 /24s
Percentage of available APNIC address space announced: 79.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 141384
Total ARIN prefixes after maximum aggregation: 72832
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113628
Unique aggregates announced from the ARIN address blocks: 47132
ARIN Region origin ASes present in the Internet Routing Table: 14538
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5602
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804184832
Equivalent to 47 /8s, 238 /16s and 227 /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: 88155
Total RIPE prefixes after maximum aggregation: 49803
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81291
Unique aggregates announced from the RIPE address blocks: 53602
RIPE Region origin ASes present in the Internet Routing Table: 15901
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7926
RIPE Region transit ASes present in the Internet Routing Table: 2498
Average RIPE Region AS path length visible: 3.5
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: 488101888
Equivalent to 29 /8s, 23 /16s and 216 /24s
Percentage of available RIPE address space announced: 78.6
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: 33677
Total LACNIC prefixes after maximum aggregation: 7607
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33109
Unique aggregates announced from the LACNIC address blocks: 17489
LACNIC Region origin ASes present in the Internet Routing Table: 1497
LACNIC Prefixes per ASN: 22.12
LACNIC Region origin ASes announcing only one prefix: 447
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: 87823616
Equivalent to 5 /8s, 60 /16s and 21 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8292
Total AfriNIC prefixes after maximum aggregation: 2073
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 6387
Unique aggregates announced from the AfriNIC address blocks: 2012
AfriNIC Region origin ASes present in the Internet Routing Table: 478
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 3.3
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: 26720768
Equivalent to 1 /8s, 151 /16s and 186 /24s
Percentage of available AfriNIC address space announced: 39.8
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 1942 11038 647 Korea Telecom (KIX)
17974 1667 516 31 PT Telekomunikasi Indonesia
7545 1572 301 82 TPG Internet Pty Ltd
4755 1528 374 165 TATA Communications formerly
24560 1194 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1073 79 503 Sify Limited
17488 1021 191 149 Hathway IP Over Cable Interne
7552 993 1062 11 Vietel Corporation
18101 951 118 139 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 3577 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
7029 1615 1033 208 Windstream Communications Inc
4323 1614 1101 396 tw telecom holdings, inc.
20115 1588 1539 632 Charter Communications
22773 1442 2903 96 Cox Communications Inc.
19262 1404 4776 397 Verizon Online LLC
7018 1350 7085 887 AT&T Services, Inc.
2386 1213 514 874 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
34984 541 107 182 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 522 1811 321 UPC Broadband
20940 492 146 383 Akamai Technologies European
3292 470 2079 404 TDC Data Networks
12479 463 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
3320 423 8149 369 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
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 1626 297 153 Types of queries are: POCs, o
28573 1269 998 69 Types of queries are: POCs, o
8151 1268 2759 346 Uninet S.A. de C.V.
7303 1047 578 164 Telecom Argentina S.A.
14420 711 56 87 CORPORACION NACIONAL DE TELEC
6503 579 450 69 Axtel, S.A.B. de C.V.
22047 578 322 17 Types of queries are: POCs, o
27947 549 56 77 Telconet S.A
3816 534 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia 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
24863 807 147 41 LINKdotNET AS number
8452 627 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 239 503 17 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 199 12 21 Starcomms Nigeria Limited
12258 195 28 62 Vodacom Internet Company
24835 177 70 12 RAYA Telecom - Egypt
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 3577 3817 228 BellSouth.net Inc.
23456 3155 749 1695 32-bit ASN transition
4766 1942 11038 647 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
17974 1667 516 31 PT Telekomunikasi Indonesia
10620 1626 297 153 Types of queries are: POCs, o
7029 1615 1033 208 Windstream Communications Inc
4323 1614 1101 396 tw telecom holdings, inc.
20115 1588 1539 632 Charter Communications
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 1824 1702 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1667 1636 PT Telekomunikasi Indonesia
7545 1572 1490 TPG Internet Pty Ltd
10620 1626 1473 Types of queries are: POCs, o
23456 3155 1460 32-bit ASN transition
7029 1615 1407 Windstream Communications Inc
4755 1528 1363 TATA Communications formerly
22773 1442 1346 Cox Communications Inc.
4766 1942 1295 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:461 /14:796 /15:1409 /16:11904 /17:5927 /18:9936
/19:19646 /20:26579 /21:26614 /22:35460 /23:34027 /24:189887
/25:12 /26:20 /27:23 /28:156 /29:113 /30:60
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2209 3577 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1554 3155 32-bit ASN transition
10620 1521 1626 Types of queries are: POCs, o
7029 1298 1615 Windstream Communications Inc
11492 1105 1151 CABLE ONE, INC.
7011 1057 1182 Frontier Communications of Am
1785 1053 1824 PaeTec Communications, Inc.
22773 936 1442 Cox Communications Inc.
30036 930 958 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:363 2:46 4:15 5:1 6:3 8:342
12:1953 13:1 14:551 15:13 16:3 17:5
20:10 23:31 24:1672 27:910 31:513 32:59
33:4 34:2 36:4 38:730 40:107 41:2408
42:53 44:3 46:1069 47:3 49:222 50:412
52:13 54:2 55:6 56:2 57:34 58:819
59:486 60:374 61:1012 62:1097 63:1929 64:3977
65:2304 66:3919 67:1923 68:1093 69:3120 70:776
71:374 72:1844 74:2411 75:329 76:337 77:864
78:701 79:463 80:1122 81:829 82:501 83:479
84:685 85:1083 86:502 87:859 88:334 89:1540
90:223 91:4059 92:523 93:1133 94:1346 95:884
96:410 97:269 98:926 99:37 101:83 103:243
106:79 107:38 108:76 109:1016 110:633 111:741
112:300 113:406 114:600 115:685 116:975 117:661
118:846 119:1184 120:329 121:659 122:1607 123:1019
124:1285 125:1272 128:207 129:171 130:160 131:577
132:110 133:21 134:206 135:50 136:211 137:132
138:293 139:114 140:466 141:286 142:369 143:427
144:483 145:60 146:455 147:236 148:614 149:247
150:146 151:190 152:440 153:179 154:4 155:398
156:198 157:323 158:141 159:391 160:317 161:197
162:331 163:157 164:512 165:364 166:537 167:435
168:743 169:148 170:845 171:84 172:1 173:1641
174:632 175:388 176:155 177:244 178:1003 180:998
181:26 182:594 183:242 184:348 185:1 186:1395
187:690 188:935 189:880 190:5116 192:5875 193:4997
194:3511 195:3036 196:1237 197:143 198:3535 199:4039
200:5433 201:1516 202:8203 203:8358 204:4170 205:2298
206:2587 207:2763 208:4015 209:3406 210:2612 211:1452
212:2103 213:1764 214:752 215:76 216:4811 217:1613
218:543 219:343 220:1187 221:499 222:302 223:246
End of report
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