| Date | IP Address |
| 2023-08-25 | 104.73.1.37 (ClassC) |
| 2024-04-12 | 23.213.37.56 (ClassC) |
| 2024-05-03 | 96.7.157.145 (ClassC) |
| 2024-05-27 | 184.31.193.145 (ClassC) |
| 2024-08-17 | 184.31.205.141 (ClassC) |
| 2024-10-04 | 184.31.201.141 (ClassC) |
| 2024-11-15 | 23.206.49.185 (ClassC) |
| 2024-12-26 | 23.54.153.141 (ClassC) |
| 2025-01-11 | 23.218.185.141 (ClassC) |
| 2025-03-27 | 104.71.213.161 (ClassC) |
| 2025-05-12 | 184.27.179.176 (ClassC) |
| Date | Domain | IP |
| data.digital.costco.com | 2023-08-09 | 63.140.36.197 |
| api.digital.costco.com | 2023-08-25 | 104.73.1.37 |
| api.mobileapp.digital.costco.com | 2023-08-25 | 104.73.1.37 |