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. 79,182,328 1.88 x 240 8 10,035
Comcast Cable Communications, LLC 72,006,144 1.04 x 245 34 2,125
DoD Network Information Center 52,864,000 2 x 232 37 6,709
4 MCI Communications Services, Inc. d/b/a Verizon Business 48,950,048 1.13 x 240 26 11,571
5 Level 3 Communications, Inc. 42,735,519 1.65 x 239 10 10,675
6 Amazon.com, Inc. 37,297,408 1.46 x 234 3 3,691
7 Time Warner Cable Internet LLC 32,777,214 1.36 x 236 13 3,506
8 Cellco Partnership DBA Verizon Wireless 30,091,012 1.56 x 236 4 3,866
9 Cogent Communications 25,931,861 1.97 x 250 3 46,598
10 CenturyLink Communications, LLC 20,814,720 1.01 x 240 22 8,988
11 Apple Inc. 16,798,974 1.5 x 233 3 2,050
12 University of California, San Diego 16,113,408 1.87 x 248 1 2,174
13 Sprint 15,736,448 1.44 x 238 4 3,894
14 Frontier Communications of America, Inc. 12,713,984 234 6 4,154
15 Windstream Communications LLC 12,461,824 1.44 x 236 5 2,705
16 T-Mobile USA, Inc. 12,208,384 233 4 497
17 Charter Communications 12,207,104 1.02 x 238 8 2,815
18 Cox Communications Inc. 12,023,551 1.25 x 236 1 6,589
19 Eli Lilly and Company 11,047,936 1.02 x 250 1 17,852
20 Google LLC 9,869,851 1.63 x 236 6 1,237