Oklahoma area codes
Oklahoma has 5 area codes. All on Central Time.
Calling Oklahoma right now
Calling hours: Every day, 8 AM to 8 PM (Oklahoma law)
Calling a lot of them? RegieGO dials up to five lines at once. See the dialer
When can you call Oklahoma numbers?
Sales calls to homes and cell phones have legal hours, set by Oklahoma law. Hold every number to them, since you can't tell a work line from a personal cell. Each area code's page has its local time now.
What applies in OklahomaEvery day, 8 AM to 8 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
- Oklahoma lawEvery day, 8 AM to 8 PMAlso no more than 3 calls in 24 hours on the same subject.15 O.S. 775C.4 (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
Oklahoma area code FAQ
How many area codes does Oklahoma have?
5: 405, 539, 572, 580 and 918.
What time zone is Oklahoma area codes in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
What is the newest Oklahoma area code?
572, in service since May 24, 2021.
When can you call Oklahoma numbers?
Every day, 8 AM to 8 PM, local time, under Oklahoma law.
Calling Oklahoma numbers? Reach more of them.
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