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 | 214,974,976 | 232 | 174 | 3,542 | |
| AT&T Services, Inc. | 121,771,525 | 1.25 x 241 | 8 | 2,489 | |
| Comcast Cable Communications, LLC | 76,041,992 | 1.03 x 245 | 33 | 5,619 | |
| 4 | Verizon Business | 51,169,920 | 1.35 x 237 | 27 | 3,404 |
| 5 | Level 3 Communications, Inc. | 47,306,513 | 1.15 x 237 | 11 | 3,797 |
| 6 | Apple Inc. | 45,404,672 | 1.02 x 234 | 2 | 1,498 |
| 7 | Google LLC | 44,856,768 | 1.75 x 236 | 8 | 3,668 |
| 8 | CenturyLink Communications, LLC | 41,866,672 | 1.04 x 240 | 32 | 4,551 |
| 9 | Charter Communications Inc | 29,078,407 | 1.15 x 239 | 12 | 1,673 |
| 10 | Cogent Communications | 28,853,248 | 1.67 x 237 | 3 | 4,205 |
| 11 | Cox Communications Inc. | 23,348,736 | 1.64 x 239 | 1 | 5,168 |
| 12 | Eli Lilly and Company | 21,183,744 | 0 | 1 | 271 |
| 13 | Sprint | 18,846,589 | 1.44 x 237 | 5 | 1,901 |
| 14 | Windstream Communications LLC | 17,226,266 | 1.53 x 237 | 6 | 29,036 |
| 15 | Amazon.com, Inc. | 16,462,208 | 1.17 x 236 | 3 | 803 |
| 16 | Frontier Communications of America, Inc. | 15,899,648 | 1.03 x 234 | 6 | 2,403 |
| 17 | Charter Communications | 14,385,750 | 1.32 x 238 | 7 | 7,237 |
| 18 | T-Mobile USA, Inc. | 14,023,040 | 1.12 x 236 | 2 | 501 |
| 19 | University of California, San Diego | 12,859,904 | 1.25 x 232 | 1 | 20 |
| 20 | Akamai Technologies, Inc. | 7,838,480 | 1.59 x 228 | 11 | 6,734 |