─────── § 04. NPA RECORD · 401 · FOLIO 0203 OF 0801 ──────────────
401
United States NPA Record
Area code 401 is the original North American Numbering Plan area code assigned to the entire state of Rhode Island, established in 1947.
Area code 401 is the original North American Numbering Plan area code assigned to the entire state of Rhode Island, established in 1947. It remains the sole area code for the state and is projected to have sufficient numbering resources until 2055.
IN SERVICEFirst record · 1947
§ 04.05Event Summary
introduced · 1service expansion · 1
§ 04.06
Documentary Record · 2 events
CHRONOLOGICAL ORDER
1947-01-01
introduced
Area code 401 established for Rhode Island
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2055-01-01
service expansion
Projected exhaust of area code 401
According to the April 2024 NANPA exhaust analysis, area code 401 is not projected to exhaust its supply of vacant central office codes until the year 2055.
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