| Police/Fire/Ambulance | 911 |
| Campus Police | 580-559-5555 |
| Health Services | 580-559-5713 |
| Ada Police Department | 580-332-4466 |
| ECU Physical Plant | 580-559-5377 |
| Pontotoc County Sheriff Department | 580-332-4169 |
| Mercy of Ada | 580-332-2323 |
| Animal Control | 580-332-4466 |
| Oklahoma State Department of Transportation | 405-522-8000 |
| Oklahoma State Department of Education | 405-521-3301 |