Area code 401

Area code 401 is the sole telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Rhode Island. 401 is one of the original North American area codes, which were established in 1947.

Area code 401 is not projected to exhaust its supply of vacant central office codes until 2053.^[1]

References

↑ "2021-2 NRUF and NPA Exhaust Analysis" (PDF). nationalnanpa.com. October 2021. Retrieved April 11, 2023.

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Lists of area codes in the North American Numbering Plan
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