| General Information about Area Code 443 | |
|---|---|
| Country | United States |
| State / Province / Territory | Maryland |
| Major City | Pikesville |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 443-780 | Columbia | Howard | Landline |
| 443-862 | Towson | Baltimore | Wireless |
| 443-390 | Churchville | Harford | Landline |
| 443-861 | Aberdeen | Harford | Landline |
| 443-850 | Baltimore | Baltimore City | Wireless |
| 443-337 | Sparrows Point | Baltimore | Landline |
| 443-826 | Baltimore | Baltimore City | Wireless |
| 443-547 | Westminster | Carroll | Wireless |
| 443-398 | Sykesville | Carroll | Wireless |
| 443-750 | Baltimore | Baltimore City | Wireless |
| 443-354 | Baltimore | Baltimore City | Landline |
| 443-218 | Glyndon | Baltimore | Landline |
| 443-229 | Severna Park | Anne Arundel | Landline |
| 443-275 | Baltimore | Baltimore City | Landline |
| 443-634 | Odenton | Anne Arundel | Landline |
| 443-471 | Columbia | Howard | Landline |
| 443-759 | Baltimore | Baltimore City | Wireless |
| 443-919 | Baltimore | Baltimore City | Landline |
| 443-737 | Baltimore | Baltimore City | Landline |
| 443-348 | Baltimore | Baltimore City | Landline |