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Lanham-Seabrook, Maryland Area Code |
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Lanham-Seabrook, MD Area Codes are 240, 301 |
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Lanham-Seabrook, MD is currently using two area codes 240 and 301. In addition to Lanham-Seabrook, MD, area codes 240 and
301 serves all of western Maryland. Lanham-Seabrook, Maryland utilizes an area code overlay in which area codes 240 and 301 serve the same geographic area. The area code overlay which serves Lanham-Seabrook,
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 Lanham-Seabrook when
it was put into service on June 1, 1947. Ten digit dialing (area code + seven digit number) is necessary in Lanham-Seabrook, 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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