Routing Table Report 08:00 +10GMT Tue 26 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358656
Prefixes after maximum aggregation: 163650
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180925
Total ASes present in the Internet Routing Table: 36840
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31770
Origin ASes announcing only one prefix: 15302
Transit ASes present in the Internet Routing Table: 5070
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2336
Unregistered ASNs in the Routing Table: 634
Number of 32-bit ASNs allocated by the RIRs: 1592
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2925
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2503510272
Equivalent to 149 /8s, 56 /16s and 137 /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: 147968
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86470
Total APNIC prefixes after maximum aggregation: 29046
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84068
Unique aggregates announced from the APNIC address blocks: 37561
APNIC Region origin ASes present in the Internet Routing Table: 4464
APNIC Prefixes per ASN: 18.83
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.2
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: 621868544
Equivalent to 37 /8s, 16 /16s and 246 /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: 140434
Total ARIN prefixes after maximum aggregation: 72562
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112622
Unique aggregates announced from the ARIN address blocks: 46695
ARIN Region origin ASes present in the Internet Routing Table: 14441
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5550
ARIN Region transit ASes present in the Internet Routing Table: 1456
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: 803146496
Equivalent to 47 /8s, 223 /16s and 11 /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: 86897
Total RIPE prefixes after maximum aggregation: 49312
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80266
Unique aggregates announced from the RIPE address blocks: 52918
RIPE Region origin ASes present in the Internet Routing Table: 15801
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7887
RIPE Region transit ASes present in the Internet Routing Table: 2497
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: 484107264
Equivalent to 28 /8s, 218 /16s and 228 /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: 33044
Total LACNIC prefixes after maximum aggregation: 7536
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32404
Unique aggregates announced from the LACNIC address blocks: 17080
LACNIC Region origin ASes present in the Internet Routing Table: 1478
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 448
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: 86488064
Equivalent to 5 /8s, 39 /16s and 180 /24s
Percentage of available LACNIC address space announced: 57.3
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: 8186
Total AfriNIC prefixes after maximum aggregation: 1969
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6464
Unique aggregates announced from the AfriNIC address blocks: 2027
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 3.6
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: 25764864
Equivalent to 1 /8s, 137 /16s and 36 /24s
Percentage of available AfriNIC address space announced: 38.4
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 1909 11037 637 Korea Telecom (KIX)
7545 1554 301 84 TPG Internet Pty Ltd
17974 1547 508 32 PT Telekomunikasi Indonesia
4755 1497 635 168 TATA Communications formerly
24560 1161 336 187 Bharti Airtel Ltd., Telemedia
9829 1119 936 41 National Internet Backbone
9583 1076 80 511 Sify Limited
17488 968 189 110 Hathway IP Over Cable Interne
4808 947 2003 274 CNCGROUP IP network China169
18101 934 116 139 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 3618 3818 239 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1813 681 121 PaeTec Communications, Inc.
4323 1616 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 1375 7101 901 AT&T Services, Inc.
22773 1349 2897 87 Cox Communications Inc.
2386 1259 521 908 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 461 132 355 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 1254 2728 350 Uninet S.A. de C.V.
7303 1011 545 163 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
8452 792 445 11 TEDATA
24863 784 147 34 LINKdotNET AS number
15475 511 74 8 Nile Online
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 258 415 15 Etisalat MISR
33776 226 13 5 Starcomms Nigeria Limited
15706 204 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 3618 3818 239 BellSouth.net Inc.
23456 2925 710 1569 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1909 11037 637 Korea Telecom (KIX)
1785 1813 681 121 PaeTec Communications, Inc.
4323 1616 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
10620 1559 287 163 Types of queries are: POCs, o
7545 1554 301 84 TPG Internet Pty Ltd
17974 1547 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 1692 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1547 1515 PT Telekomunikasi Indonesia
7545 1554 1470 TPG Internet Pty Ltd
10620 1559 1396 Types of queries are: POCs, o
23456 2925 1356 32-bit ASN transition
4755 1497 1329 TATA Communications formerly
4766 1909 1272 Korea Telecom (KIX)
22773 1349 1262 Cox Communications Inc.
4323 1616 1214 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 /15:1403 /16:12027 /17:5861 /18:9768
/19:19603 /20:26065 /21:26172 /22:34547 /23:33408 /24:187651
/25:12 /26:19 /27:23 /28:161 /29:110 /30:59
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2237 3618 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1454 1559 Types of queries are: POCs, o
23456 1441 2925 32-bit ASN transition
11492 1096 1142 CABLE ONE, INC.
7029 1071 1391 Windstream Communications Inc
7011 1056 1158 Frontier Communications of Am
1785 1053 1813 PaeTec Communications, Inc.
6478 997 1025 AT&T Services, Inc.
22773 867 1349 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:336 2:45 4:16 5:1 6:3 8:336
12:1963 13:1 14:478 15:15 16:3 17:5
20:10 23:15 24:1677 27:826 31:501 32:59
33:4 34:2 36:4 38:725 40:104 41:2596
42:35 44:3 46:1052 47:3 49:204 50:384
52:13 54:2 55:3 56:2 57:33 58:819
59:475 60:383 61:1021 62:1041 63:1926 64:3968
65:2296 66:3881 67:1886 68:1105 69:3049 70:768
71:373 72:1867 74:2422 75:320 76:340 77:860
78:703 79:476 80:1108 81:841 82:504 83:469
84:689 85:1061 86:519 87:766 88:333 89:1538
90:224 91:3950 92:526 93:1057 94:1340 95:870
96:415 97:263 98:891 99:37 101:76 103:148
106:77 107:25 108:73 109:1023 110:610 111:714
112:298 113:406 114:555 115:663 116:962 117:658
118:827 119:1165 120:315 121:647 122:1600 123:957
124:1275 125:1220 128:208 129:163 130:164 131:575
132:104 133:21 134:206 135:52 136:213 137:136
138:299 139:113 140:459 141:252 142:387 143:416
144:474 145:54 146:448 147:216 148:604 149:248
150:158 151:189 152:336 153:182 154:4 155:399
156:195 157:323 158:140 159:386 160:313 161:195
162:307 163:157 164:506 165:365 166:531 167:431
168:741 169:151 170:833 171:81 172:1 173:1614
174:620 175:367 176:144 177:174 178:1014 180:896
181:22 182:495 183:234 184:342 185:1 186:1315
187:741 188:890 189:943 190:4904 192:5857 193:4978
194:3513 195:3021 196:1220 197:42 198:3521 199:3944
200:5496 201:1469 202:8194 203:8354 204:4152 205:2304
206:2581 207:2727 208:3984 209:3411 210:2588 211:1445
212:2023 213:1738 214:772 215:69 216:4917 217:1650
218:537 219:344 220:1197 221:480 222:310 223:228
End of report
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