Oneill, Nebraska Area Code
Oneill, NE is officially utilizing an area code overlay in which area codes 402 and 531 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Oneill, NE area code information read more about area codes 402 and 531 details and Nebraska area codes.
Oneill, NE is located in Holt County and observes the Central Time Zone.
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