Routing Table Report 08:00 +10GMT Mon 19 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 366082
Prefixes after maximum aggregation: 165974
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 184899
Total ASes present in the Internet Routing Table: 37239
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 32139
Origin ASes announcing only one prefix: 15464
Transit ASes present in the Internet Routing Table: 5100
Transit-only ASes present in the Internet Routing Table: 127
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: 2654
Unregistered ASNs in the Routing Table: 823
Number of 32-bit ASNs allocated by the RIRs: 1750
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3248
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 2494838272
Equivalent to 148 /8s, 180 /16s and 54 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 151142
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88854
Total APNIC prefixes after maximum aggregation: 29424
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86337
Unique aggregates announced from the APNIC address blocks: 38270
APNIC Region origin ASes present in the Internet Routing Table: 4519
APNIC Prefixes per ASN: 19.11
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 688
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: 626979584
Equivalent to 37 /8s, 94 /16s and 243 /24s
Percentage of available APNIC address space announced: 79.5
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: 142052
Total ARIN prefixes after maximum aggregation: 73189
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114313
Unique aggregates announced from the ARIN address blocks: 48065
ARIN Region origin ASes present in the Internet Routing Table: 14581
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5628
ARIN Region transit ASes present in the Internet Routing Table: 1471
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: 804838656
Equivalent to 47 /8s, 248 /16s and 221 /24s
Percentage of available ARIN address space announced: 64.0
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: 88590
Total RIPE prefixes after maximum aggregation: 50102
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81577
Unique aggregates announced from the RIPE address blocks: 53920
RIPE Region origin ASes present in the Internet Routing Table: 15968
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7966
RIPE Region transit ASes present in the Internet Routing Table: 2504
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: 488876800
Equivalent to 29 /8s, 35 /16s and 171 /24s
Percentage of available RIPE address space announced: 78.8
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: 34232
Total LACNIC prefixes after maximum aggregation: 7655
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33677
Unique aggregates announced from the LACNIC address blocks: 17795
LACNIC Region origin ASes present in the Internet Routing Table: 1512
LACNIC Prefixes per ASN: 22.27
LACNIC Region origin ASes announcing only one prefix: 452
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: 89068032
Equivalent to 5 /8s, 79 /16s and 18 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8414
Total AfriNIC prefixes after maximum aggregation: 2014
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6499
Unique aggregates announced from the AfriNIC address blocks: 2028
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.43
AfriNIC Region origin ASes announcing only one prefix: 153
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: 27205888
Equivalent to 1 /8s, 159 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 40.5
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 1943 11039 648 Korea Telecom (KIX)
17974 1713 516 31 PT Telekomunikasi Indonesia
7545 1594 303 85 TPG Internet Pty Ltd
4755 1539 379 167 TATA Communications formerly
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1156 989 28 National Internet Backbone
9583 1083 80 507 Sify Limited
7552 996 1062 11 Vietel Corporation
17488 959 190 159 Hathway IP Over Cable Interne
4808 957 1995 270 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 3562 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
7029 1642 1033 206 Windstream Communications Inc
4323 1625 1101 394 tw telecom holdings, inc.
20115 1594 1542 634 Charter Communications
22773 1453 2905 98 Cox Communications Inc.
30036 1423 263 685 Mediacom Communications Corp
19262 1394 4724 399 Verizon Online LLC
7018 1342 7084 881 AT&T Services, Inc.
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 558 107 178 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 523 1811 322 UPC Broadband
20940 520 168 404 Akamai Technologies European
3292 473 2081 405 TDC Data Networks
12479 473 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
3320 432 8152 376 Deutsche Telekom AG
29049 423 31 56 AzerSat LLC.
8402 412 352 13 Corbina telecom
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 1675 308 159 Types of queries are: POCs, o
28573 1341 1012 68 Types of queries are: POCs, o
8151 1270 2783 353 Uninet S.A. de C.V.
7303 1156 678 170 Telecom Argentina S.A.
14420 734 58 88 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 567 450 69 Axtel, S.A.B. de C.V.
27947 556 56 77 Telconet S.A
3816 537 232 99 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 810 147 41 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 450 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 199 28 59 Vodacom Internet Company
29571 198 17 13 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 3562 3817 227 BellSouth.net Inc.
23456 3248 771 1752 32-bit ASN transition
4766 1943 11039 648 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
17974 1713 516 31 PT Telekomunikasi Indonesia
10620 1675 308 159 Types of queries are: POCs, o
7029 1642 1033 206 Windstream Communications Inc
4323 1625 1101 394 tw telecom holdings, inc.
7545 1594 303 85 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 1825 1703 PaeTec Communications, Inc.
17974 1713 1682 PT Telekomunikasi Indonesia
18566 1910 1675 Covad Communications Co.
10620 1675 1516 Types of queries are: POCs, o
7545 1594 1509 TPG Internet Pty Ltd
23456 3248 1496 32-bit ASN transition
7029 1642 1436 Windstream Communications Inc
4755 1539 1372 TATA Communications formerly
22773 1453 1355 Cox Communications Inc.
4766 1943 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 /12:236
/13:464 /14:799 /15:1410 /16:11930 /17:5945 /18:9971
/19:19833 /20:26947 /21:26923 /22:35964 /23:34400 /24:190617
/25:12 /26:20 /27:22 /28:153 /29:114 /30:58
/31:0 /32:124
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3562 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
10620 1570 1675 Types of queries are: POCs, o
23456 1557 3248 32-bit ASN transition
30036 1381 1423 Mediacom Communications Corp
7029 1327 1642 Windstream Communications Inc
11492 1112 1149 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1052 1825 PaeTec Communications, Inc.
22773 944 1453 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:374 2:52 4:15 5:1 6:3 8:348
12:1952 13:1 14:528 15:13 16:3 17:5
20:10 23:34 24:1674 27:935 31:527 32:59
33:4 34:2 36:4 38:736 40:108 41:2574
42:48 44:3 46:979 47:3 49:249 50:419
52:13 54:2 55:5 56:2 57:34 58:829
59:487 60:374 61:1015 62:1078 63:1937 64:4016
65:2293 66:3915 67:1945 68:1093 69:3172 70:779
71:377 72:1856 74:2435 75:326 76:338 77:870
78:666 79:478 80:1118 81:840 82:508 83:502
84:629 85:1087 86:416 87:872 88:350 89:1540
90:234 91:4106 92:526 93:1152 94:1318 95:767
96:431 97:272 98:929 99:37 101:81 103:300
106:94 107:46 108:78 109:1018 110:636 111:781
112:313 113:420 114:552 115:665 116:910 117:654
118:854 119:1175 120:336 121:667 122:1595 123:1011
124:1299 125:1337 128:206 129:172 130:159 131:573
132:112 133:21 134:207 135:53 136:210 137:134
138:294 139:106 140:471 141:285 142:371 143:402
144:480 145:59 146:461 147:214 148:613 149:250
150:146 151:190 152:450 153:177 154:5 155:394
156:198 157:325 158:144 159:393 160:324 161:198
162:333 163:165 164:507 165:371 166:536 167:433
168:741 169:144 170:859 171:84 172:4 173:1637
174:623 175:396 176:175 177:252 178:1000 180:1057
181:26 182:610 183:234 184:367 185:1 186:1450
187:669 188:937 189:873 190:5111 192:5864 193:5005
194:3523 195:3054 196:1247 197:142 198:3531 199:4067
200:5443 201:1627 202:8243 203:8365 204:4181 205:2318
206:2587 207:2761 208:4024 209:3432 210:2625 211:1464
212:2100 213:1766 214:780 215:76 216:4832 217:1601
218:542 219:328 220:1188 221:498 222:294 223:263
End of report
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