| Date | IP Address |
| 2018-08-07 | 52.84.33.126 (ClassC) |
| 2018-08-07 | 52.84.33.170 (ClassC) |
| 2018-08-07 | 52.84.33.88 (ClassC) |
| 2025-01-26 | 18.172.170.65 (ClassC) |
| 2025-06-27 | 18.161.6.103 (ClassC) |
| 2025-07-04 | 18.161.6.129 (ClassC) |
| 2025-08-22 | 18.161.6.45 (ClassC) |
| 2026-01-18 | 18.161.6.72 (ClassC) |
| Date | Domain | IP |
| billpay-beta.patientco.com | 2024-07-29 | 3.163.158.46 |
| billpay.staging.patientco.com | 2024-07-20 | 3.163.24.121 |
| research.patientco.com | 2024-08-17 | 3.163.189.101 |
| staging.research.patientco.com | 2025-01-26 | 18.172.170.65 |
| www.staging.research.patientco.com | 2025-01-13 | 18.172.170.36 |
| legal.patientco.com | 2024-10-01 | 204.246.191.112 |
| go.patientco.com | 2024-10-24 | 99.84.66.61 |
| cdn-go.patientco.com | 2024-10-10 | 99.86.38.127 |
| pay.demo.patientco.com | 2025-07-28 | 52.207.137.93 |
| www.corp.patientco.com | 2025-07-03 | 34.193.132.108 |
| www.patientco.com | 2023-11-01 | 3.137.125.23 |
| pay.patientco.com | 2025-05-16 | 18.161.6.55 |
| billpay.patientco.com | 2024-10-15 | 99.86.38.89 |