Area Code 301 Maryland, USA

WhereCall is here to provide you with the most information on the area code 301, located in Maryland, USA. This area code contains 798 prefixes and is not in jeopardy of exceeding the known supply of central office codes during the planning/implementation interval for relief.

NPA Information
Area Code (NPA)301
LocationMaryland, USA
In Jeopardy?No
Is Assigned?Yes
Assignment Date01 Jan 1947
In Service?Yes
In Service Date01 Jan 1947
Overlay Complex240/227/301
Predominant Timezone(s)UTC-05:00
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