where is 401 area code come from?

How many area codes does Rhode Island have?
Rhode Island currently utilizes 1 area code.
Full answer in: www.allareacodes.com
What time zone is 401?
Eastern timezone
Full answer in: www.allareacodes.com
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What US area code is 410?
of Maryland introduces the 410 area code in the Baltimore metropolitan area, the entire Eastern Shore, Calvert County and most of Carroll, Howard and Anne Arundel counties. Oct 25, 1991
Full answer in: www.baltimoresun.com
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Which country code is 401?
Rhode Island
Full answer in: en.wikipedia.org
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