List of Oklahoma area codes

The state of Oklahoma is served by the following area codes:

405, which serves central Oklahoma including Oklahoma City (original area code in 1947)
580, which serves western and southern Oklahoma (split from 405 in 1997)
539/918, which serves northeastern Oklahoma including Tulsa (918 created in 1953 as split from 405; 539 added as overlay in 2011)

Lists of area codes in the North American Numbering Plan

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