405 area code
Oklahoma City area, Central Time.Area code 405 covers Oklahoma City, Britton, Bethany and 90 more places in Oklahoma, on Central Time. 572 covers the same area.
Right now in Oklahoma City
Central Time (CST, UTC-6; CDT, UTC-5 in summer)
Calling hours: Every day, 8 AM to 8 PM (Oklahoma law)
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Where 405 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 405 has 93. Each one's share is how many 405 numbers start there. Its biggest metro area is Oklahoma City, OK.
- Oklahoma City43%
- Britton5%
- Bethany4%
- Edmond4%
- Stillwater3%
- Moore3%
- Norman3%
- Shawnee2%
- Midwest City2%
Also: Chandler, Chickasha, Yukon, Anadarko, Pauls Valley, Seminole, Guthrie, Holdenville, El Reno, Kingfisher, Mustang, Noble + 72 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 405 number?
Sales calls to homes and cell phones have legal hours, set by Oklahoma law. Hold every 405 number to them, since you can't tell a work line from a personal cell.
What applies to 405Every 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
405 and 572
405 is one of the original area codes from 1947, and 580 was later split off from it. 405 and 572 cover the same area, so new numbers can get either code and neighbors can have different area codes. 405 holds 87% of the area's exchanges; 572 holds the rest. Local calls take all 10 digits.
- 1947405 starts
- 1997580 split off
- 2021572 overlay
Source: NANPA area code database
Other Oklahoma area codes
All Oklahoma area codesCalling a list of 405 numbers?
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405 area code FAQ
What area code is 405?
405 is an Oklahoma area code for Oklahoma City, Britton, Bethany, Edmond and 89 more places.
What time zone is the 405 area code in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
Is 572 the same as 405?
Same area, different code. 405 and 572 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 405 numbers?
Every day, 8 AM to 8 PM, local time, under Oklahoma law.
When did the 405 area code start?
In 1947: it's one of the original area codes.
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