List of the top 20 organizations with the largest IP allocations in United States
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| DoD Network Information Center | 339,108,096 | 233 | 192 | 11,578 | |
| Verizon Business | 132,568,320 | 1.54 x 240 | 29 | 5,562 | |
| Comcast Cable Communications, LLC | 123,147,872 | 1.2 x 248 | 35 | 9,340 | |
| 4 | AT&T Services, Inc. | 114,311,173 | 1.26 x 241 | 8 | 2,896 |
| 5 | Amazon.com, Inc. | 63,160,832 | 1.85 x 238 | 6 | 14,981 |
| 6 | Microsoft Corporation | 54,530,560 | 1.12 x 239 | 13 | 1,018 |
| 7 | Apple Inc. | 45,666,048 | 1.02 x 234 | 2 | 1,704 |
| 8 | Google LLC | 44,834,464 | 1.88 x 236 | 11 | 4,113 |
| 9 | Level 3 Communications, Inc. | 44,495,060 | 1.44 x 237 | 12 | 4,318 |
| 10 | Charter Communications Inc | 40,340,992 | 1.38 x 239 | 15 | 2,245 |
| 11 | CenturyLink Communications, LLC | 38,625,712 | 1.02 x 240 | 32 | 3,727 |
| 12 | Cogent Communications | 29,061,376 | 1.36 x 237 | 3 | 4,881 |
| 13 | Cox Communications Inc. | 23,336,704 | 1.57 x 241 | 1 | 5,070 |
| 14 | Windstream Communications LLC | 15,573,504 | 1.69 x 237 | 3 | 1,799 |
| 15 | Eli Lilly and Company | 15,250,944 | 0 | 1 | 311 |
| 16 | Frontier Communications of America, Inc. | 15,026,432 | 1.02 x 234 | 5 | 2,396 |
| 17 | T-Mobile USA, Inc. | 14,674,944 | 1.11 x 236 | 2 | 511 |
| 18 | Charter Communications | 14,307,584 | 1.05 x 239 | 16 | 3,731 |
| 19 | University of California, San Diego | 12,859,910 | 1.25 x 232 | 1 | 22 |
| 20 | Sprint | 12,296,838 | 1.75 x 236 | 7 | 647 |