| Date | IP Address |
| 2018-07-17 | 52.71.176.187 (ClassC) |
| 2020-06-11 | 52.86.64.213 (ClassC) |
| 2025-07-02 | 34.198.207.251 (ClassC) |
| 2025-12-08 | 100.24.227.45 (ClassC) |
| Date | Domain | IP |
| api-doc.postman-echo.com | 2025-04-06 | 44.212.156.218 |
| graphql.postman-echo.com | 2025-12-03 | 34.203.127.9 |
| docs.postman-echo.com | 2025-07-02 | 34.198.207.251 |
| www.postman-echo.com | 2023-08-29 | 54.84.29.239 |