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Cockeysville, Maryland Area Code |
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Cockeysville, MD Area Codes are 410, 443 |
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Cockeysville, MD is currently using two area codes 410 and 443. Cockeysville, 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 Cockeysville, 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 Cockeysville, 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 Cockeysville, MD, area codes 410 and 443 serves eastern Maryland. |
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Maryland Area Codes |
240, 301, 410, 443 |
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