─────── § 04. NPA RECORD · 636 · FOLIO 0438 OF 0801 ──────────────
636
United States NPA Record
Area code for the western suburbs of St.
Area code for the western suburbs of St. Louis and surrounding counties in Missouri, created in 1999 from a split of 314.
First record · 1999
§ 04.05Event Summary
mandatory dialing · 1permissive dialing · 1split · 1
§ 04.06
Documentary Record · 3 events
CHRONOLOGICAL ORDER
1999-05-22
split
NPA 636 split from 314
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2000-02-26
permissive dialing
Permissive dialing period ends for 636 split from 314
The permissive dialing period for the 636 split from 314 ended on February 26, 2000. After this date, calls had to be dialed using the correct area code.
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2000-02-26
mandatory dialing
Mandatory dialing for NPA 636
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