United States

Top 20 organizations with the largest IP allocations in United States

United States

Top 20 organizations with the largest IP allocations


Rank Name IPv4 addresses IPv6 /64 networks AS numbers Prefixes
AT&T Services, Inc. 78,852,600 1.49 x 240 8 10,103
Comcast Cable Communications, LLC 71,914,496 1.03 x 245 34 2,545
DoD Network Information Center 53,821,440 2 x 232 37 5,896
4 MCI Communications Services, Inc. d/b/a Verizon Business 48,241,696 1.16 x 240 23 11,410
5 Level 3 Communications, Inc. 41,470,309 1.37 x 238 9 10,939
6 Hewlett-Packard Company 33,903,104 1.19 x 220 27 972
7 Time Warner Cable Internet LLC 32,673,790 1.23 x 236 13 3,390
8 Amazon.com, Inc. 31,617,280 1.67 x 234 3 3,169
9 Cellco Partnership DBA Verizon Wireless 30,295,044 1.56 x 236 4 2,848
10 Cogent Communications 25,436,065 1.96 x 250 3 48,729
11 Qwest Communications Company, LLC 18,129,680 1.02 x 240 8 7,014
12 Apple Inc. 16,828,670 1.5 x 233 3 1,607
13 University of California, San Diego 16,132,608 1.87 x 248 1 1,871
14 Sprint 16,012,800 1.37 x 235 4 3,900
15 Frontier Communications of America, Inc. 13,329,152 234 6 3,925
16 T-Mobile USA, Inc. 12,663,040 233 4 509
17 Charter Communications 12,111,616 1.01 x 238 7 2,853
18 Cox Communications Inc. 11,959,040 1.25 x 236 1 6,417
19 Eli Lilly and Company 11,042,816 1.02 x 250 1 15,719
20 Windstream Communications LLC 9,047,296 1.38 x 236 3 2,048