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. 101,354,241 1.06 x 241 9 2,084
DoD Network Information Center 97,512,192 232 206 7,759
Comcast Cable Communications, LLC 76,012,694 1.13 x 248 26 846
4 Level 3 Communications, Inc. 65,836,888 1.96 x 237 14 3,740
5 MCI Communications Services, Inc. d/b/a Verizon Business 64,081,984 1.28 x 240 37 15,700
6 Apple Inc. 49,175,296 1.02 x 234 3 1,137
7 Amazon.com, Inc. 48,099,072 1.13 x 235 4 5,345
8 Cellco Partnership DBA Verizon Wireless 44,495,104 1.32 x 237 4 2,075
9 CenturyLink Communications, LLC 44,385,456 1.05 x 240 42 5,438
10 Charter Communications Inc 38,671,104 1.6 x 236 16 2,057
11 Microsoft Corporation 36,523,008 1.04 x 239 14 403
12 Cogent Communications 29,072,640 1.16 x 238 3 3,759
13 Eli Lilly and Company 25,106,688 0 1 206
14 Cox Communications Inc. 22,436,608 1.83 x 236 1 4,512
15 AT&T Global Network Services, LLC 19,561,472 234 4 468
16 Sprint 17,372,076 1.75 x 235 5 288
17 Google LLC 16,405,152 1.44 x 236 7 726
18 Frontier Communications of America, Inc. 15,350,784 1.25 x 236 6 2,691
19 AT&T Corp. 14,624,256 1.53 x 229 35 1,957
20 Headquarters, USAISC 14,179,584 218 82 1,297