─────── § 04. NPA RECORD · 601 · FOLIO 0403 OF 0801 ──────────────
601
United States NPA Record
Original area code assigned in 1947 for the entire state of Mississippi, now serving central and southern Mississippi excluding the Gulf Coast after splits in 1997 and 1999.
Original area code assigned in 1947 for the entire state of Mississippi, now serving central and southern Mississippi excluding the Gulf Coast after splits in 1997 and 1999.
IN SERVICEFirst record · 1947
§ 04.05Event Summary
other · 2split · 2introduced · 1jeopardy · 1mandatory dialing · 1
§ 04.06
Documentary Record · 9 events
CHRONOLOGICAL ORDER
1947-01-01
introduced
NPA 601 assigned as original Mississippi area code
Area code 601 was one of the original North American area codes assigned in 1947, serving the entire state of Mississippi.
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1997-01-01
split
NPA 228 split from 601
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1997-07-31
other
NANP-Split of 601 (Mississippi) Numbering Plan Area (NPA)
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1998-07-24
jeopardy
Extraordinary Jeopardy Procedures for 601 NPA in Mississippi
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1999-01-01
split
NPA 662 split from 601
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1999-03-04
other
Geographic Split of 601 (Mississippi) Numbering Plan Area (NPA)
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2004-04-20
NPA 769 overlay on 601 announced
NPA 769 to Overlay NPA 601 (Mississippi)
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2005-03-14
NPA 769 overlay introduced for 601 in Mississippi
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2005-03-14
mandatory dialing
Mandatory ten-digit dialing implemented for 601/769 overlay in Mississippi
Ten-digit dialing became mandatory in central Mississippi on March 14, 2005, due to the introduction of the 769 overlay on the 601 numbering plan area.
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