Maryland Area Codes
Here is the current list of area codes in the state of Maryland. There are 329 area codes in Maryland that are currently being used. Find out all Maryland area codes below by searching each of the cities below. We have the most up-to-date list of area codes in Maryland.
| Area Code | State | City | Timezone |
|---|---|---|---|
| 301 | Maryland | Tall Timbers | Eastern |
| 240 | Maryland | Highfield | Eastern |
| 301 | Maryland | Hyattsville | Eastern |
| 443 | Maryland | Crofton | Eastern |