Area codes / Oklahoma

Oklahoma area codes

Oklahoma has 5 area codes in service, in the Central time zone. Pick one for a local business number your Oklahoma customers recognize.

Every Oklahoma area code

Oklahoma area codes with time zone, overlays, and year in service
Area codeTime zoneOverlaid withIn service since
405 Central 572 1947
539 Central 918 2011
572 Central 405 2021
580 Central None 1997
918 Central 539 1953

Picking a Oklahoma area code

405 is among the original area codes created in 1947. 4 Oklahoma area codes share their region with an overlay, so a new number there may come in either code; both ring the same area, and calls within it are dialed with all ten digits.

Already have a Oklahoma number customers know? Move it to Onyx Phone for free, and keep answering while it moves.

Getting started

  1. Create a login and pick a plan. Checkout saves a card for the 7-day free trial, and nothing is charged until it ends.
  2. Confirm your business and its 911 address, and get a local number on the spot. Bringing your own number? You answer on a temporary one while it moves over, for free.
  3. Choose where calls ring, write what callers hear, invite your team, and register for texting. Then answer in the browser, the iPhone and Android apps, or a desk phone. How it works has the details.

Included on every plan

Starter is $17, Business is $29, Scale is $42 per user a month, or less billed yearly. The plan includes a business number for each user and unlimited calling and texting in the US and Canada. Every plan starts with a 7-day free trial, and moving your current number over is free.

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Area code data from NANPA, file of October 24, 2026.