─────── § 04. NPA RECORD · 660 · FOLIO 0462 OF 0801 ──────────────
660
United States NPA Record
Area code created in 1997 from a split of 816 to serve rural northern and eastern portions of Missouri outside the Kansas City metropolitan area.
Area code created in 1997 from a split of 816 to serve rural northern and eastern portions of Missouri outside the Kansas City metropolitan area.
IN SERVICEFirst record · 1997
§ 04.05Event Summary
split · 3mandatory dialing · 2activated · 1permissive dialing · 1planning notice · 1relief planned · 1
§ 04.06
Documentary Record · 9 events
CHRONOLOGICAL ORDER
1997-06-04
relief planned
Split of area code 816 announced
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1997-07-28
planning notice
NANPA announces split of 816
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1997-07-28
split
NPA 660 split from 816
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1997-10-12
split
NPA 660 split from 816
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1997-10-12
split
816 reduced by split creating 660
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1997-10-12
permissive dialing
Permissive dialing begins for 660 overlay
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1997-10-12
activated
Area code 660 activated
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1998-04-19
mandatory dialing
Mandatory dialing begins for 660
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2021-10-24
mandatory dialing
Mandatory ten-digit dialing for 660
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