Oklahoma · Central Time
405 Area Code
Area code 405 is in Oklahoma, serving central Oklahoma, including Oklahoma City, Norman, Edmond and Stillwater. It is in the Central Time zone. It shares its territory with overlay code 572, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 405 area code?
405 is a Oklahoma area code covering central Oklahoma, including Oklahoma City, Norman, Edmond and Stillwater. In the wider directory it sits in the South region.
Cities in the 405 area code
- Oklahoma City
- Norman
- Edmond
- Moore
- Midwest City
- Stillwater
- Shawnee
- Yukon
- Mustang
- Del City
- Bethany
- El Reno
- Chickasha
- Guthrie
Counties served by 405
Oklahoma County, Cleveland County, Canadian County, Payne County, Pottawatomie County, Logan County, Grady County and Lincoln County.
405 overlay codes and dialing
The 405 territory is covered by an overlay of 2 area codes: 405, 572. All of them serve the same geographic area, and the original code is 405. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 405 area code
405 is one of the original area codes assigned in 1947, when AT&T and Bell Laboratories created the North American Numbering Plan and divided the country into the first 86 numbering plan areas. It has served the Oklahoma City area ever since, with 572 later added as an overlay to supply more numbers.
Is 405 a scam or spam risk?
405 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 405 number on your screen is no guarantee the caller is in Oklahoma City, OK or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Explore more
See every code in Oklahoma, compare codes across the South region, or view all Central Time codes. You can also browse the 4XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
405 area code FAQ
Where is the 405 area code?
The 405 area code is in Oklahoma, covering central Oklahoma, including Oklahoma City, Norman, Edmond and Stillwater, in the South region.
What cities are in the 405 area code?
Cities in the 405 area code include Oklahoma City, Norman, Edmond, Moore, Midwest City, Stillwater, Shawnee, Yukon, Mustang and Del City.
What time zone is 405 in?
405 is in the Central Time zone.
What is the overlay for the 405 area code?
405 shares its territory with 572. Both codes (405, 572) serve the same area, so 10-digit dialing is required for every call.
When did the 405 area code start?
405 went into service on January 1, 1947 as one of the original 1947 North American area codes.
Do I have to dial 10 digits for 405?
Yes. Because 405 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 405 a toll-free or premium code?
No. 405 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.