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. 101,356,545 1.06 x 241 9 2,054
DoD Network Information Center 97,540,864 232 205 7,757
Comcast Cable Communications, LLC 76,411,542 1.13 x 248 39 727
4 Level 3 Communications, Inc. 65,821,944 1.96 x 237 13 3,707
5 MCI Communications Services, Inc. d/b/a Verizon Business 63,891,264 1.28 x 240 37 14,144
6 Apple Inc. 50,059,264 1.02 x 234 3 1,128
7 Amazon.com, Inc. 47,970,048 1.13 x 235 4 5,305
8 Cellco Partnership DBA Verizon Wireless 44,659,968 1.32 x 237 4 2,076
9 CenturyLink Communications, LLC 44,406,960 1.05 x 240 42 5,408
10 Charter Communications Inc 38,678,528 1.6 x 236 16 2,061
11 Cogent Communications 29,195,776 1.16 x 238 3 3,793
12 Microsoft Corporation 26,425,344 1.04 x 239 14 393
13 Eli Lilly and Company 25,106,688 0 1 206
14 Cox Communications Inc. 22,402,816 1.83 x 236 1 4,499
15 AT&T Global Network Services, LLC 19,560,448 234 4 464
16 Sprint 17,374,449 1.75 x 235 5 296
17 Google LLC 16,405,152 1.44 x 236 7 720
18 Frontier Communications of America, Inc. 15,350,784 1.25 x 236 6 2,692
19 AT&T Corp. 14,623,744 1.53 x 229 35 1,955
20 Headquarters, USAISC 14,159,872 218 81 1,307