| Date | IP Address |
| 2024-11-28 | 54.153.221.100 (ClassC) |
| 2025-08-01 | 54.252.224.228 (ClassC) |
| Date | Domain | IP |
| reference.promisepay.com | 2025-08-01 | 54.252.224.228 |
| secure.api.promisepay.com | 2024-09-21 | 52.8.243.49 |
| cdn.promisepay.com | 2015-03-22 | 54.192.89.217 |
| docs.promisepay.com | 2024-09-06 | 52.219.220.195 |
| status.promisepay.com | 2025-07-23 | 54.206.167.123 |
| www.promisepay.com | 2022-05-25 | 13.210.195.142 |