Routing Table Report 08:00 +10GMT Fri 22 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358210
Prefixes after maximum aggregation: 163572
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180728
Total ASes present in the Internet Routing Table: 36806
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 31744
Origin ASes announcing only one prefix: 15289
Transit ASes present in the Internet Routing Table: 5062
Transit-only ASes present in the Internet Routing Table: 129
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: 2306
Unregistered ASNs in the Routing Table: 632
Number of 32-bit ASNs allocated by the RIRs: 1583
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2915
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2500621056
Equivalent to 149 /8s, 12 /16s and 115 /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: 147654
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86406
Total APNIC prefixes after maximum aggregation: 29000
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84007
Unique aggregates announced from the APNIC address blocks: 37456
APNIC Region origin ASes present in the Internet Routing Table: 4461
APNIC Prefixes per ASN: 18.83
APNIC Region origin ASes announcing only one prefix: 1263
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: 621948416
Equivalent to 37 /8s, 18 /16s and 46 /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: 139894
Total ARIN prefixes after maximum aggregation: 72502
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 112143
Unique aggregates announced from the ARIN address blocks: 46637
ARIN Region origin ASes present in the Internet Routing Table: 14421
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5540
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: 802473984
Equivalent to 47 /8s, 212 /16s and 200 /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: 87018
Total RIPE prefixes after maximum aggregation: 49288
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80410
Unique aggregates announced from the RIPE address blocks: 52913
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: 7879
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: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 483891200
Equivalent to 28 /8s, 215 /16s and 152 /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: 32943
Total LACNIC prefixes after maximum aggregation: 7536
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32426
Unique aggregates announced from the LACNIC address blocks: 17094
LACNIC Region origin ASes present in the Internet Routing Table: 1475
LACNIC Prefixes per ASN: 21.98
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 259
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: 86117632
Equivalent to 5 /8s, 34 /16s and 13 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8353
Total AfriNIC prefixes after maximum aggregation: 2013
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6499
Unique aggregates announced from the AfriNIC address blocks: 1993
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.71
AfriNIC Region origin ASes announcing only one prefix: 154
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: 24464128
Equivalent to 1 /8s, 117 /16s and 75 /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 1910 11036 633 Korea Telecom (KIX)
7545 1553 301 84 TPG Internet Pty Ltd
17974 1553 508 32 PT Telekomunikasi Indonesia
4755 1503 375 170 TATA Communications formerly
24560 1156 336 187 Bharti Airtel Ltd., Telemedia
9829 1108 923 47 National Internet Backbone
9583 1062 77 503 Sify Limited
17488 963 187 106 Hathway IP Over Cable Interne
4808 944 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 3609 3818 239 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1813 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1537 625 Charter Communications
7029 1390 1031 209 Windstream Communications Inc
7018 1377 7102 903 AT&T Services, Inc.
22773 1352 2897 89 Cox Communications Inc.
2386 1260 521 908 AT&T Data Communications Serv
7011 1158 279 623 Frontier Communications of Am
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 456 593 7 France Telecom Espana SA
8866 450 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 404 355 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 1268 995 78 Types of queries are: POCs, o
8151 1249 2727 349 Uninet S.A. de C.V.
7303 988 512 166 Telecom Argentina S.A.
6503 738 354 74 Axtel, S.A.B. de C.V.
14420 699 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
27947 499 54 48 Telconet 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
8452 815 445 11 TEDATA
24863 790 147 40 LINKdotNET AS number
15475 512 74 8 Nile Online
36992 314 415 15 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 178 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
15706 149 32 6 Sudatel Internet Exchange Aut
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 3609 3818 239 BellSouth.net Inc.
23456 2915 711 1574 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1910 11036 633 Korea Telecom (KIX)
1785 1813 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1537 625 Charter Communications
10620 1559 287 163 Types of queries are: POCs, o
7545 1553 301 84 TPG Internet Pty Ltd
17974 1553 508 32 PT Telekomunikasi Indonesia
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 1691 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1553 1521 PT Telekomunikasi Indonesia
7545 1553 1469 TPG Internet Pty Ltd
10620 1559 1396 Types of queries are: POCs, o
23456 2915 1341 32-bit ASN transition
4755 1503 1333 TATA Communications formerly
4766 1910 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 /14:796 /15:1397 /16:11986 /17:5862 /18:9768
/19:19600 /20:25988 /21:26160 /22:34569 /23:33394 /24:187352
/25:12 /26:19 /27:22 /28:159 /29:104 /30:58
/31:0 /32:126
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 3609 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1454 1559 Types of queries are: POCs, o
23456 1443 2915 32-bit ASN transition
11492 1092 1138 CABLE ONE, INC.
7029 1070 1390 Windstream Communications Inc
7011 1056 1158 Frontier Communications of Am
1785 1055 1813 PaeTec Communications, Inc.
6478 1013 1042 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)
----------------------------------------------
1:325 2:44 4:16 5:1 6:3 8:338
12:1964 13:1 14:478 15:15 16:3 17:5
20:10 23:14 24:1673 27:833 31:503 32:59
33:4 34:2 36:4 38:726 40:104 41:2578
42:34 44:3 46:1040 47:3 49:202 50:382
52:13 54:2 55:6 56:2 57:34 58:813
59:476 60:383 61:1020 62:1036 63:1928 64:3963
65:2295 66:3854 67:1873 68:1101 69:3045 70:726
71:277 72:1838 74:2347 75:317 76:340 77:889
78:710 79:472 80:1112 81:843 82:501 83:467
84:690 85:1054 86:518 87:766 88:334 89:1522
90:224 91:3967 92:524 93:1053 94:1339 95:863
96:365 97:262 98:891 99:37 101:73 103:142
106:73 107:23 108:57 109:1021 110:610 111:708
112:298 113:407 114:553 115:668 116:962 117:666
118:825 119:1163 120:314 121:651 122:1601 123:960
124:1269 125:1230 128:208 129:165 130:164 131:571
132:100 133:21 134:206 135:47 136:213 137:135
138:299 139:114 140:459 141:220 142:387 143:412
144:475 145:54 146:449 147:210 148:598 149:248
150:154 151:167 152:339 153:182 154:3 155:398
156:196 157:322 158:140 159:387 160:313 161:195
162:307 163:156 164:501 165:365 166:532 167:434
168:735 169:151 170:845 171:80 172:1 173:1603
174:610 175:368 176:144 177:158 178:998 180:898
181:23 182:493 183:215 184:344 185:1 186:1305
187:758 188:895 189:946 190:4985 192:5861 193:4993
194:3513 195:3042 196:1206 197:41 198:3525 199:3936
200:5490 201:1471 202:8207 203:8355 204:4156 205:2307
206:2582 207:2730 208:3978 209:3402 210:2589 211:1442
212:2103 213:1779 214:767 215:70 216:4917 217:1671
218:534 219:344 220:1197 221:481 222:311 223:217
End of report
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