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Rosedale, Maryland Area Code Information |
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Rosedale, MD Area Codes are 410, 443 |
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Rosedale, MD is currently using two area codes 410 and 443. Rosedale, Maryland utilizes an area code overlay in which
area codes 410 and 443 serve the same geographic area. The area code overlay which is in use in Rosedale, MD was established in 1997 at which time area code 443 was created as an overlay of area code 410.
Area code 410 was originally established in 1991. Ten digit dialing (area code + seven digit number) is necessary in Rosedale, 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. In addition to Rosedale, MD, area codes 410 and 443 serves eastern Maryland. |
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Maryland Area Codes |
240, 301, 410, 443 |
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