Blair, NE utilizes an area code overlay in which area codes 402 and 531 serve the same geographic area. The area code overlay which is in use today was established 3/26/2011 at which time area code 531 was implemented as an overlay of area code 402. Area code 402 originally covered all of Nebraska when it was established in 1947. Ten digit dialing (area code + seven digit number) is necessary because two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.
In addition to Blair, NE area codes 402 and 531 serve much of eastern and north-central Nebraska including the larger cities and communities of Bellevue, Columbus, Elkhorn, Fremont, Hastings, Lincoln, Norfolk, Omaha in addition to many smaller communities in Nebraska.
Blair, NE is located in Washington County and observes the Central Time Zone.
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