Routing Table Report 08:00 +10GMT Tue 13 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 365091
Prefixes after maximum aggregation: 165506
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183758
Total ASes present in the Internet Routing Table: 37204
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32097
Origin ASes announcing only one prefix: 15462
Transit ASes present in the Internet Routing Table: 5107
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 43
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 2584
Unregistered ASNs in the Routing Table: 784
Number of 32-bit ASNs allocated by the RIRs: 1721
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3218
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 102
Number of addresses announced to Internet: 2492665088
Equivalent to 148 /8s, 147 /16s and 13 /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: 91.2
Total number of prefixes smaller than registry allocations: 150646
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88726
Total APNIC prefixes after maximum aggregation: 29370
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86199
Unique aggregates announced from the APNIC address blocks: 38171
APNIC Region origin ASes present in the Internet Routing Table: 4513
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 691
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: 625505792
Equivalent to 37 /8s, 72 /16s and 118 /24s
Percentage of available APNIC address space announced: 79.3
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: 141968
Total ARIN prefixes after maximum aggregation: 72903
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114127
Unique aggregates announced from the ARIN address blocks: 47240
ARIN Region origin ASes present in the Internet Routing Table: 14569
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5623
ARIN Region transit ASes present in the Internet Routing Table: 1476
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: 804856832
Equivalent to 47 /8s, 249 /16s and 36 /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: 88431
Total RIPE prefixes after maximum aggregation: 49972
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81493
Unique aggregates announced from the RIPE address blocks: 53888
RIPE Region origin ASes present in the Internet Routing Table: 15957
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7971
RIPE Region transit ASes present in the Internet Routing Table: 2510
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 43
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 488698624
Equivalent to 29 /8s, 32 /16s and 243 /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: 33858
Total LACNIC prefixes after maximum aggregation: 7648
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33319
Unique aggregates announced from the LACNIC address blocks: 17655
LACNIC Region origin ASes present in the Internet Routing Table: 1508
LACNIC Prefixes per ASN: 22.09
LACNIC Region origin ASes announcing only one prefix: 455
LACNIC Region transit ASes present in the Internet Routing Table: 260
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: 88411136
Equivalent to 5 /8s, 69 /16s and 12 /24s
Percentage of available LACNIC address space announced: 58.6
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: 8194
Total AfriNIC prefixes after maximum aggregation: 2059
AfriNIC Deaggregation factor: 3.98
Prefixes being announced from the AfriNIC address blocks: 6289
Unique aggregates announced from the AfriNIC address blocks: 2009
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.07
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 27236096
Equivalent to 1 /8s, 159 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 40.6
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 1703 516 31 PT Telekomunikasi Indonesia
7545 1583 301 81 TPG Internet Pty Ltd
4755 1536 378 166 TATA Communications formerly
24560 1178 336 193 Bharti Airtel Ltd., Telemedia
9829 1152 989 28 National Internet Backbone
9583 1080 80 504 Sify Limited
7552 1000 1062 11 Vietel Corporation
17488 982 192 158 Hathway IP Over Cable Interne
4808 956 1996 271 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 3563 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
4323 1626 1101 396 tw telecom holdings, inc.
7029 1622 1033 209 Windstream Communications Inc
20115 1591 1541 632 Charter Communications
22773 1450 2905 98 Cox Communications Inc.
19262 1394 4724 399 Verizon Online LLC
7018 1346 7084 884 AT&T Services, Inc.
30036 1327 243 687 Mediacom Communications Corp
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 548 107 178 BILISIM TELEKOM
9116 539 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Broadband
20940 502 156 390 Akamai Technologies European
3292 473 2080 404 TDC Data Networks
12479 469 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 405 352 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 1661 305 161 Types of queries are: POCs, o
28573 1301 1003 69 Types of queries are: POCs, o
8151 1272 2783 353 Uninet S.A. de C.V.
7303 1057 581 168 Telecom Argentina S.A.
14420 715 57 88 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 570 450 69 Axtel, S.A.B. de C.V.
27947 554 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 809 147 41 LINKdotNET AS number
8452 684 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 204 13 14 Starcomms Nigeria Limited
15706 195 32 6 Sudatel Internet Exchange Aut
12258 194 28 63 Vodacom Internet Company
29571 191 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 3563 3817 227 BellSouth.net Inc.
23456 3218 763 1734 32-bit ASN transition
4766 1943 11039 648 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
17974 1703 516 31 PT Telekomunikasi Indonesia
10620 1661 305 161 Types of queries are: POCs, o
4323 1626 1101 396 tw telecom holdings, inc.
7029 1622 1033 209 Windstream Communications Inc
20115 1591 1541 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 1675 Covad Communications Co.
17974 1703 1672 PT Telekomunikasi Indonesia
7545 1583 1502 TPG Internet Pty Ltd
10620 1661 1500 Types of queries are: POCs, o
23456 3218 1484 32-bit ASN transition
7029 1622 1413 Windstream Communications Inc
4755 1536 1370 TATA Communications formerly
22773 1450 1352 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
23.18.0.0/16 25877 Open Mobile
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
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 /12:235
/13:463 /14:797 /15:1410 /16:11925 /17:5933 /18:9964
/19:19801 /20:26771 /21:26872 /22:35776 /23:34320 /24:190169
/25:12 /26:20 /27:23 /28:157 /29:116 /30:60
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2199 3563 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1561 3218 32-bit ASN transition
10620 1556 1661 Types of queries are: POCs, o
7029 1306 1622 Windstream Communications Inc
30036 1290 1327 Mediacom Communications Corp
11492 1111 1157 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1052 1824 PaeTec Communications, Inc.
22773 941 1450 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:371 2:49 4:15 5:1 6:3 8:348
12:1950 13:1 14:527 15:13 16:3 17:5
20:10 23:32 24:1669 27:934 31:517 32:59
33:3 34:2 36:4 38:733 40:107 41:2337
42:45 44:3 46:977 47:3 49:237 50:415
52:13 54:2 55:7 56:2 57:34 58:819
59:491 60:374 61:1012 62:1084 63:1936 64:4002
65:2299 66:3916 67:1953 68:1093 69:3166 70:778
71:377 72:1857 74:2425 75:327 76:338 77:870
78:667 79:480 80:1127 81:845 82:508 83:491
84:685 85:1092 86:418 87:861 88:347 89:1531
90:232 91:4081 92:525 93:1148 94:1342 95:794
96:419 97:271 98:926 99:37 101:79 103:284
106:71 107:44 108:76 109:1006 110:630 111:741
112:312 113:421 114:553 115:686 116:903 117:660
118:853 119:1179 120:334 121:668 122:1598 123:1008
124:1288 125:1342 128:214 129:174 130:160 131:569
132:111 133:21 134:207 135:52 136:210 137:134
138:294 139:114 140:464 141:289 142:371 143:413
144:489 145:60 146:458 147:215 148:615 149:250
150:146 151:190 152:444 153:179 154:5 155:393
156:199 157:323 158:143 159:391 160:322 161:198
162:332 163:163 164:512 165:369 166:536 167:432
168:741 169:146 170:849 171:84 172:1 173:1648
174:631 175:391 176:175 177:247 178:1007 180:1039
181:27 182:597 183:230 184:350 185:1 186:1415
187:663 188:940 189:866 190:5111 192:5877 193:5006
194:3523 195:3064 196:1228 197:133 198:3528 199:4062
200:5438 201:1626 202:8229 203:8402 204:4178 205:2308
206:2586 207:2763 208:4015 209:3436 210:2610 211:1455
212:2107 213:1768 214:770 215:76 216:4819 217:1598
218:541 219:342 220:1186 221:499 222:304 223:261
End of report
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