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Hillcrest Heights, Maryland Area Code |
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Hillcrest Heights, MD Area Codes are 240, 301 |
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Hillcrest Heights, MD is currently using two area codes 240 and 301. In addition to Hillcrest Heights, MD, area codes 240
and 301 serves all of western Maryland. Hillcrest Heights, Maryland utilizes an area code overlay in which area codes 240 and 301 serve the same geographic area. The area code overlay which serves Hillcrest
Heights, MD was put into service on June 1, 1997 at which time area code 240 was created as an overlay of area code 301. Area code 301 originally covered the entire state of Maryland, including Hillcrest
Heights when it was put into service on June 1, 1947. Ten digit dialing (area code + seven digit number) is necessary in Hillcrest Heights, MD because two different homes in the same geographic area
can have the same seven digit phone number but each would have a different area code. |
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Maryland Area Codes |
240, 301, 410, 443 |
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