Internet Service Providers in 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. 79,154,168 1.88 x 240 7 10,022
Comcast Cable Communications, LLC 72,004,096 1.04 x 245 34 2,655
DoD Network Information Center 53,074,432 2 x 232 40 6,887
4 MCI Communications Services, Inc. d/b/a Verizon Business 48,944,928 1.13 x 240 26 11,516
5 Level 3 Communications, Inc. 42,714,464 1.65 x 239 10 10,645
6 Amazon.com, Inc. 38,214,656 1.46 x 234 3 3,806
7 Cellco Partnership DBA Verizon Wireless 30,091,264 1.56 x 236 4 3,905
8 CenturyLink Communications, LLC 29,919,024 1.03 x 240 38 11,624
9 Charter Communications Inc 26,205,439 1.25 x 236 11 3,021
10 Cogent Communications 25,784,404 1.97 x 250 3 46,776
11 Apple Inc. 16,832,766 234 3 2,053
12 Sprint 15,176,576 1.44 x 238 4 3,912
13 Windstream Communications LLC 12,745,728 1.44 x 236 9 2,786
14 Frontier Communications of America, Inc. 12,717,568 234 6 4,170
15 Charter Communications 12,215,552 1.04 x 238 8 2,818
16 T-Mobile USA, Inc. 12,175,872 233 4 489
17 Cox Communications Inc. 12,019,711 1.25 x 236 1 6,627
18 University of California, San Diego 11,921,664 1.87 x 248 1 2,173
19 Eli Lilly and Company 11,047,936 1.02 x 250 1 18,157
20 Google LLC 10,911,515 1.57 x 236 6 1,200