Oklahoma area codes
Oklahoma has 5 area codes, all on UTC−6 standard time. Each card shows the main cities; open one for its overlays, history and a free lookup.
よくある質問
Oklahoma area code questions
How many area codes does Oklahoma have?
Oklahoma has 5 area codes in service: 405, 539, 572, 580 and 918.
What was the original Oklahoma area code?
405 was among the original area codes created in 1947.
What is the newest area code in Oklahoma?
572, in service since May 24, 2021 as an overlay on 405.
What time zone is Oklahoma area codes in?
Central.
番号を調べる
1 回目の照会で、有効性・通信事業者・回線種別・地域が分かります。
All North American area codes · International country codes
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.