Routing Table Report 08:00 +10GMT Sat 27 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 362927
Prefixes after maximum aggregation: 164938
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182919
Total ASes present in the Internet Routing Table: 37090
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 32000
Origin ASes announcing only one prefix: 15380
Transit ASes present in the Internet Routing Table: 5090
Transit-only ASes present in the Internet Routing Table: 137
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: 2524
Unregistered ASNs in the Routing Table: 740
Number of 32-bit ASNs allocated by the RIRs: 1679
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3097
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2488353280
Equivalent to 148 /8s, 81 /16s and 66 /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: 149964
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87813
Total APNIC prefixes after maximum aggregation: 29202
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85236
Unique aggregates announced from the APNIC address blocks: 37922
APNIC Region origin ASes present in the Internet Routing Table: 4493
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1261
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: 624682752
Equivalent to 37 /8s, 59 /16s and 231 /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: 141302
Total ARIN prefixes after maximum aggregation: 72831
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113526
Unique aggregates announced from the ARIN address blocks: 47108
ARIN Region origin ASes present in the Internet Routing Table: 14540
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5603
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: 803917056
Equivalent to 47 /8s, 234 /16s and 205 /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: 88137
Total RIPE prefixes after maximum aggregation: 49783
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81300
Unique aggregates announced from the RIPE address blocks: 53606
RIPE Region origin ASes present in the Internet Routing Table: 15907
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7925
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 488238592
Equivalent to 29 /8s, 25 /16s and 238 /24s
Percentage of available RIPE address space announced: 78.7
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: 33588
Total LACNIC prefixes after maximum aggregation: 7587
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32987
Unique aggregates announced from the LACNIC address blocks: 17430
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 22.15
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 261
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: 87825664
Equivalent to 5 /8s, 60 /16s and 29 /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: 8293
Total AfriNIC prefixes after maximum aggregation: 2078
AfriNIC Deaggregation factor: 3.99
Prefixes being announced from the AfriNIC address blocks: 6392
Unique aggregates announced from the AfriNIC address blocks: 2065
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 146
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 26812928
Equivalent to 1 /8s, 153 /16s and 34 /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 1941 11038 646 Korea Telecom (KIX)
17974 1684 516 31 PT Telekomunikasi Indonesia
7545 1571 301 83 TPG Internet Pty Ltd
4755 1527 374 164 TATA Communications formerly
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1076 79 496 Sify Limited
17488 1014 192 157 Hathway IP Over Cable Interne
7552 965 1062 11 Vietel Corporation
4808 943 2001 269 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 3580 3817 227 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1825 681 123 PaeTec Communications, Inc.
7029 1614 1033 208 Windstream Communications Inc
4323 1613 1101 396 tw telecom holdings, inc.
20115 1587 1538 632 Charter Communications
22773 1440 2903 96 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1352 7085 887 AT&T Services, Inc.
2386 1224 516 884 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 521 1810 321 UPC Broadband
20940 482 144 380 Akamai Technologies European
3292 470 2080 405 TDC Data Networks
8866 457 133 26 Bulgarian Telecommunication C
12479 456 593 7 France Telecom Espana SA
3320 424 8151 370 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 1625 297 155 Types of queries are: POCs, o
8151 1270 2773 347 Uninet S.A. de C.V.
28573 1262 996 67 Types of queries are: POCs, o
7303 1047 578 164 Telecom Argentina S.A.
14420 711 56 87 CORPORACION NACIONAL DE TELEC
6503 578 450 69 Axtel, S.A.B. de C.V.
22047 578 322 17 Types of queries are: POCs, o
27947 550 56 78 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 805 145 56 LINKdotNET AS number
8452 635 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 196 12 22 Starcomms Nigeria Limited
12258 195 28 62 Vodacom Internet Company
24835 176 70 11 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 3580 3817 227 BellSouth.net Inc.
23456 3097 741 1684 32-bit ASN transition
4766 1941 11038 646 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1825 681 123 PaeTec Communications, Inc.
17974 1684 516 31 PT Telekomunikasi Indonesia
10620 1625 297 155 Types of queries are: POCs, o
7029 1614 1033 208 Windstream Communications Inc
4323 1613 1101 396 tw telecom holdings, inc.
20115 1587 1538 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 1825 1702 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1684 1653 PT Telekomunikasi Indonesia
7545 1571 1488 TPG Internet Pty Ltd
10620 1625 1470 Types of queries are: POCs, o
23456 3097 1413 32-bit ASN transition
7029 1614 1406 Windstream Communications Inc
4755 1527 1363 TATA Communications formerly
22773 1440 1344 Cox Communications Inc.
4766 1941 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<<
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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:461 /14:795 /15:1409 /16:11909 /17:5927 /18:9926
/19:19660 /20:26526 /21:26583 /22:35399 /23:34035 /24:189412
/25:12 /26:20 /27:23 /28:155 /29:113 /30:60
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2212 3580 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1526 3097 32-bit ASN transition
10620 1520 1625 Types of queries are: POCs, o
7029 1298 1614 Windstream Communications Inc
11492 1107 1153 CABLE ONE, INC.
7011 1061 1186 Frontier Communications of Am
1785 1053 1825 PaeTec Communications, Inc.
22773 935 1440 Cox Communications Inc.
30036 924 952 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:360 2:43 4:15 5:1 6:3 8:343
12:1955 13:1 14:512 15:13 16:3 17:5
20:10 23:31 24:1672 27:908 31:513 32:59
33:4 34:2 36:4 38:728 40:107 41:2421
42:50 44:3 46:1072 47:3 49:220 50:416
52:13 54:2 55:6 56:2 57:34 58:816
59:495 60:373 61:1009 62:1090 63:1926 64:3975
65:2304 66:3911 67:1923 68:1094 69:3121 70:775
71:374 72:1842 74:2408 75:329 76:337 77:865
78:706 79:481 80:1118 81:830 82:500 83:476
84:684 85:1080 86:501 87:851 88:339 89:1530
90:224 91:4060 92:525 93:1139 94:1348 95:875
96:413 97:263 98:925 99:37 101:74 103:242
106:79 107:37 108:75 109:1012 110:629 111:726
112:308 113:413 114:554 115:682 116:973 117:658
118:841 119:1179 120:330 121:661 122:1609 123:980
124:1237 125:1268 128:207 129:171 130:160 131:574
132:111 133:21 134:205 135:53 136:211 137:133
138:293 139:114 140:465 141:285 142:369 143:416
144:482 145:60 146:455 147:244 148:617 149:250
150:148 151:187 152:438 153:179 154:4 155:401
156:199 157:323 158:139 159:390 160:317 161:198
162:331 163:156 164:513 165:364 166:537 167:433
168:740 169:149 170:845 171:82 172:1 173:1643
174:629 175:383 176:154 177:224 178:1006 180:990
181:25 182:589 183:227 184:339 185:1 186:1387
187:677 188:937 189:873 190:5106 192:5880 193:4985
194:3510 195:3047 196:1238 197:144 198:3525 199:4029
200:5433 201:1508 202:8163 203:8359 204:4178 205:2303
206:2571 207:2761 208:3999 209:3409 210:2607 211:1452
212:2099 213:1763 214:759 215:76 216:4806 217:1612
218:540 219:347 220:1131 221:498 222:302 223:245
End of report
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