─────── § 04. NPA RECORD · 417 · FOLIO 0219 OF 0801 ──────────────
417
United States NPA Record
Area code 417 was created in 1951 as a split from 816 to serve southwestern Missouri.
Area code 417 was created in 1951 as a split from 816 to serve southwestern Missouri.
First record · 1950
§ 04.05Event Summary
split · 2introduced · 1mandatory dialing · 1permissive dialing · 1
§ 04.06
Documentary Record · 5 events
CHRONOLOGICAL ORDER
1950-01-01
split
NPA 417 split from 816
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1950-01-01
introduced
Area code 417 created
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1951-01-01
split
NPA 417 split from 816
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2021-10-24
mandatory dialing
Mandatory ten-digit dialing implemented in area code 417
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2021-10-24
permissive dialing
Transition to 10-digit dialing in area code 417
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