| Property | Value |
| Name | Concentra Operating Corp |
| Organization | Concentra Operating Corp |
| DOMAINADMIN@CONCENTRA.COM | |
| Address | 5080 SPECTRUM DR STE 1200 W |
| Zip Code | 75001 |
| City | Addison |
| State | TX |
| Country | US |
| Phone | +1.8002523220 |
| Fax | +1.9723878092 |
| NameServer | f4.nstld.com |
| Created | 1995-02-21 05:00:00 |
| Changed | 2014-09-11 19:21:34 |
| Expires | 2022-02-22 00:00:00 |
| Registrar | CSC CORPORATE DOMAIN |
| Date | IP Address |
| 2024-01-27 | 104.16.131.48 (ClassC) |
| 2024-02-03 | 104.16.133.48 (ClassC) |
| 2024-03-25 | 104.16.134.48 (ClassC) |
| 2024-11-13 | 104.16.208.219 (ClassC) |
| 2025-01-14 | 104.17.255.171 (ClassC) |
| Date | Domain | IP |
| cmca.concentra.com | 2024-06-27 | 20.115.106.246 |
| portal.concentra.com | 2024-09-10 | 104.18.6.150 |
| cmcaportal.concentra.com | 2024-08-09 | 20.115.106.246 |
| www.concentra.com | 2024-12-06 | 104.17.255.171 |