The 405 area code serves the Greater Oklahoma City metropolitan area, the population and government center of the state. One of the original area codes assigned in 1947, 405 covers the capital and its fast-growing suburbs in central Oklahoma and shares its footprint with the newer 572 overlay.
Quick Summary of the 405 Area Code
| Area Code | 405 |
| State | Oklahoma (OK) |
| Region | Greater Oklahoma City Metro |
| Major Cities | Oklahoma City, Norman, Edmond, Moore, Midwest City, Stillwater, Shawnee, Del City |
| Time Zone | Central Time (CT) – CST / CDT |
| Dialing Format | 10-digit dialing required |
Geographic Coverage
The 405 area code covers central Oklahoma, centered on Oklahoma City and its suburbs of Edmond and Del City to the north and east, Norman and Moore to the south, and Midwest City to the east, and extending to the college town of Stillwater to the northeast and Shawnee to the southeast. It shares its footprint with the 572 overlay.
Time Zone
The 405 area code observes Central Time (CT). Clocks follow Central Standard Time (UTC−6) in winter and shift to Central Daylight Time (UTC−5) from mid-March through early November. All of Oklahoma is on Central Time. From the West Coast, this region is two hours ahead of Pacific Time, so a 9:00 AM call in California reaches a 405 number at 11:00 AM local time.
Tip: Business hours across the 405 region generally run 9:00 AM to 5:00 PM Central Time, Monday through Friday.
How to Dial a 405 Number
Because area code 405 operates as part of an overlay, 10-digit dialing is mandatory for every local and long-distance call. You must dial the full 10-digit number (405 + the seven-digit line number) even when calling a neighbor across the street. For international callers, dial your country’s exit code, then +1 (the North American country code), then 405, followed by the seven-digit local number.
Scam Alerts for the 405 Area Code
Like every U.S. area code, 405 has been used by scammers who spoof local numbers to appear trustworthy. Residents in Oklahoma City, Norman, Edmond, Moore, Midwest City, Stillwater, Shawnee, Del City should stay alert to the following common tactics:
| Scam Type | What to Watch For |
|---|---|
| IRS / Tax Scams | Callers claiming you owe back taxes and threatening arrest unless you pay immediately. |
| Utility Shut-off | Fake OG&E reps demanding payment to avoid disconnection. |
| Storm Repair Scam | Fake contractors demanding upfront payment for tornado or storm damage repairs. |
| Bank Fraud Alerts | Robocalls impersonating your bank about “suspicious activity” to phish account details. |
If you receive a suspicious call from a 405 number, take these steps to protect yourself:
- Do not share personal information such as Social Security numbers, bank details, or passwords over the phone.
- Hang up and verify by calling the organization back using an official number from its website.
- Report the call to the FTC at reportfraud.ftc.gov and to the Oklahoma Attorney General’s Office.
- Block the number and consider registering with the National Do Not Call Registry.
Red Flag: Legitimate agencies such as the IRS, Social Security Administration, or your local utility company (OG&E or PSO) will never demand immediate payment by gift card, wire transfer, or cryptocurrency. Any 405 caller making such a demand is a scammer.
History and Economy of the 405 Region
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Area code 405 is one of the original 86 codes established in 1947, and it once covered all of Oklahoma before 918 (1953) and 580 (1997) were split off. As the metro grew, the 572 overlay was added in 2021 across the same territory. Oklahoma City anchors the regional economy as the state capital and a major center for the energy industry – Devon Energy and other oil-and-gas companies are headquartered downtown – along with aviation and aerospace at Tinker Air Force Base and the FAA’s Mike Monroney Aeronautical Center. The University of Oklahoma in Norman and Oklahoma State University in Stillwater add higher education and research, while the NBA’s Thunder anchors a revitalized downtown.
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Looking Up a 405 Number
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To identify a 405 caller, use a reverse phone lookup service or search the full 10-digit number online. Many Oklahoma City businesses, government offices, and healthcare providers list their 405 numbers publicly, so a quick search often confirms a legitimate caller. For unknown numbers, let the call go to voicemail – genuine callers usually leave a message.
Nearby & Related Area Codes
Oklahoma is served by five area codes. If you are researching 405, these neighboring and overlay codes are worth knowing:
- 572 – Oklahoma City overlay (same region)
- 918 – Northeastern OK / Tulsa
- 539 – Tulsa overlay
- 580 – Western & Southern OK / Enid & Lawton
You can also browse our full directory of Oklahoma area codes for more regional guides.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Explore Neighboring States
Researching area codes just across the state line? Start with these codes in the states that border Oklahoma:
- Kansas – area code 316
- Missouri – area code 314
- Arkansas – area code 501
- Texas – area code 214
- New Mexico – area code 505
- Colorado – area code 303
Frequently Asked Questions
Where is the 405 area code located?
The 405 area code covers the Greater Oklahoma City metro, including Norman, Edmond, Moore, Midwest City, Stillwater, Shawnee, and Del City.
Do I need to dial 10 digits for 405?
Yes. Because 405 shares an overlay with the 572 area code, you must dial all 10 digits for every local call.
What time zone is the 405 area code in?
The 405 area code is in the Central Time Zone (CST/CDT), like all of Oklahoma.
Is 405 the same area as 572?
Yes. 572 is an overlay of 405, so both codes serve the exact same Oklahoma City-area region.
Related 405 Guides
- Is a 405 call safe? Read Is area code 405 a scam? Spam & safety guide.
- Local coverage: see the Oklahoma City area code guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.