Area Code Search
Eastern time zone
Current Time in Upper Marlboro: 05:13 PM
Upper Marlboro Area Codes
Here is the current list of area codes in Upper Marlboro, MD. There is currently 2 area code(s) in Upper Marlboro. Search all the most up-to-date currently used Upper Marlboro area codes below.
Eastern time zone
Current Time in Upper Marlboro: 05:13 PM
| Area Code | State | City | Timezone |
|---|---|---|---|
| 240 | Maryland | Upper Marlboro | Eastern |
| 301 | Maryland | Upper Marlboro | Eastern |