Area Code 240 Maryland, USA

WhereCall is here to provide you with the most information on the area code 240, located in Maryland, USA. This area code contains 558 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)240
LocationMaryland, USA
In Jeopardy?No
Is Assigned?Yes
In Service?Yes
In Service Date01 Jun 1997
Parent NPA301
Overlay Complex227/240/301
Predominant Timezone(s)UTC-05:00
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