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. 101,454,081 1.05 x 241 9 2,093
DoD Network Information Center 97,790,464 233 212 7,763
Comcast Cable Communications, LLC 75,718,678 1.03 x 245 18 1,598
4 Level 3 Communications, Inc. 65,977,890 1.24 x 237 15 3,637
5 MCI Communications Services, Inc. d/b/a Verizon Business 64,582,432 1.33 x 240 37 18,350
6 Amazon.com, Inc. 49,795,328 1.14 x 235 4 5,581
7 Apple Inc. 48,231,168 1.02 x 234 3 1,217
8 Cellco Partnership DBA Verizon Wireless 43,601,920 1.32 x 237 4 2,120
9 CenturyLink Communications, LLC 42,008,496 1.05 x 240 43 4,906
10 Charter Communications Inc 38,566,656 1.02 x 237 16 2,073
11 Microsoft Corporation 36,787,968 1.04 x 239 14 472
12 Cogent Communications 29,159,168 1.13 x 238 3 3,922
13 Eli Lilly and Company 25,113,344 0 1 211
14 Cox Communications Inc. 22,561,280 1.81 x 236 1 4,632
15 AT&T Global Network Services, LLC 19,580,416 1.01 x 234 4 491
16 Sprint 17,081,100 1.75 x 235 6 221
17 Google LLC 16,660,320 1.44 x 236 7 842
18 Frontier Communications of America, Inc. 15,211,264 1.02 x 234 6 2,936
19 AT&T Corp. 14,548,992 1.39 x 232 35 1,952
20 Headquarters, USAISC 14,401,792 1.25 x 218 84 1,536