Area code 401

{{Short description|Area code for Rhode Island}}

{{Use mdy dates|date=April 2023}}

Area code 401 is the 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 2055.{{cite web|url=https://nationalnanpa.com/reports/2024-1_NPA_Exhaust_Projections_Final.pdf|title= 2024-1 NRUF and NPA Exhaust Analysis|website=nationalnanpa.com|access-date=6 July 2024|date=April 2024}}