| Area Code | 440 |
| State | Ohio |
| Current Time in Area Code 440 | 440> EST |
| Timezone | Eastern Standard Time |
| Regional Market Area | Metro Cleveland |
| Metro Area(s) | Ashtabula, OH |
| Population (2020) | 738538 |
| Adjacent Area Codes | 216,226,234,330,419,519,548,567,582,724,814,878 |
| Ashtabula County |
| Geauga County |
| Lake County |
| Lorain County |
| Elyria |
| Lorain |
| Mentor |
| North Olmsted |
| North Ridgeville |
| North Royalton |
| Parma |
| Strongsville |
| Westlake |