Ada, OK is currently using one area code which is area code 580. Area Code 580 was created from a split of area code 405 and put into service on November 1, 1997.
In addition to Ada, OK area code 580 serves most of western and southern Oklahoma including the larger cities and communities of Altus, Ardmore, Duncan, Enid, Lawton, and Ponca City in addition to many smaller communities within the area code 580 service area.
Ada, OK is located in Pontotoc County and observes the Central Time Zone.
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