─────── § 04. NPA RECORD · 402 · FOLIO 0204 OF 0801 ──────────────
402
United States NPA Record
Area code 402 is one of the original North American area codes created in 1947, originally covering all of Nebraska.
Area code 402 is one of the original North American area codes created in 1947, originally covering all of Nebraska. It was reduced in 1954 to cover the eastern half of the state, including Omaha and Lincoln.
First record · 1947
§ 04.05Event Summary
mandatory dialing · 2introduced · 1permissive dialing · 1split · 1
§ 04.06
Documentary Record · 10 events
CHRONOLOGICAL ORDER
1947-01-01
introduced
NPA 402 introduced as original Nebraska area code
In 1947, area code 402 was created as one of the original North American area codes, covering the entire state of Nebraska.
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1954-01-01
split
NPA 308 split from 402
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2009-08-17
NPA 531 overlay on 402 announced
NPA 531 to Overlay NPA 402 (Nebraska)
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2009-10-07
NPA 531 overlay on 402 announced
NPA 531 to Overlay NPA 402 (Nebraska)
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2010-06-26
permissive dialing
Permissive 10-digit dialing begins in 402
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2010-09-01
NPA 531 overlay on 402 announced
NPA 531 to Overlay NPA 402 (Nebraska)
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2011-01-01
NPA 531 overlays 402
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2011-02-26
mandatory dialing
Mandatory 10-digit dialing in 402 and 531
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2011-03-01
NPA 531 overlays 402
Area code 531 was added as an overlay to area code 402 in March 2011, covering the same eastern Nebraska region to address number exhaustion.
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2011-03-01
mandatory dialing
Mandatory ten-digit dialing implemented in 402/531 area
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