The 324 area code is a new overlay serving Miami-Dade County in southeastern Florida. Introduced in 2024, it was layered directly on top of the established 305 and 786 codes to supply fresh phone numbers across the Miami metropolitan area.
Quick Summary of the 324 Area Code
| Area Code | 324 |
| State | Florida (FL) |
| Region | Miami-Dade County |
| Major Cities | Miami, Miami Beach, Hialeah, Coral Gables, Homestead, Kendall, Doral, Aventura |
| Time Zone | Eastern Time (ET) – EST / EDT |
| Dialing Format | 10-digit dialing required |
Geographic Coverage
The 324 area code shares an identical footprint with 305 and 786, covering all of Miami-Dade County including the city of Miami, Miami Beach, Hialeah, Coral Gables, Doral, Aventura, the suburban Kendall area, and Homestead to the south. Because it is an overlay rather than a separate region, a 324 number can exist on the same street as a 305 or 786 number.
Time Zone
The 324 area code observes Eastern Time (ET) – EST / EDT. Clocks follow Eastern Standard Time (UTC−5) in winter and shift to Eastern Daylight Time (UTC−4) from mid-March through early November. Miami-Dade County, like almost all of Florida, is on Eastern Time. From the West Coast, this region is three hours ahead of Pacific Time, so a 9:00 AM call in California reaches this number at 12:00 PM local time.
Tip: Business hours across the 324 region generally run 9:00 AM to 5:00 PM local time, Monday through Friday.
How to Dial a 324 Number
Because area code 324 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 (324 + 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 324, followed by the seven-digit local number.
Scam Alerts for the 324 Area Code
Like every U.S. area code, 324 has been used by scammers who spoof local numbers to appear trustworthy. Residents in Miami, Miami Beach, Hialeah, Coral Gables, Homestead, Kendall, Doral, Aventura should stay alert to the following common tactics:
| Scam Type | What to Watch For |
|---|---|
| IRS / Tax Scams | Threatening calls demanding immediate tax payment via gift cards or wire transfer. |
| Utility Shut-off | Impostors claiming to be Florida Power & Light threatening to cut power. |
| Storm Repair Scam | Fake contractors demanding upfront payment for hurricane or storm damage repairs. |
| Immigration Scam | Callers posing as immigration officials threatening deportation unless you pay a fee. |
If you receive a suspicious call from a 324 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 Florida 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 (Florida Power & Light (FPL)) will never demand immediate payment by gift card, wire transfer, or cryptocurrency. Any 324 caller making such a demand is a scammer.
History and Economy of the 324 Region
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The 324 area code entered service in 2024 as the newest overlay for Miami-Dade County, joining the original 305 and the 786 overlay. Miami is a global city and a major center for international trade, banking, and finance, serving as the primary gateway between the United States and Latin America and the Caribbean. Tourism is enormous, drawing visitors to Miami Beach, and PortMiami is one of the busiest cruise ports in the world, while the region is also a hub for real estate, media in Spanish and English, and a fast-growing technology sector. Constant demand for new phone numbers exhausted the earlier codes, prompting regulators to add 324. Because it is brand new, 324 appears almost exclusively on recently activated phone lines.
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Looking Up a 324 Number
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To identify a 324 caller, use a reverse phone lookup or search the complete 10-digit number online. Because 324 is the newest code in Miami, many numbers will have little public footprint yet, so treat unexpected 324 calls with extra caution and never share sensitive information with an unverified caller.
Nearby & Related Area Codes
Florida is served by several area codes. If you are researching 324, these neighboring and overlay codes are worth knowing:
You can also browse our full directory of Florida 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 Florida:
Frequently Asked Questions
Where is the 324 area code located?
The 324 area code serves Miami-Dade County as an overlay of 305 and 786, covering Miami, Miami Beach, Hialeah, Coral Gables, Homestead, Kendall, Doral, and Aventura.
Why does 324 cover the same area as 305?
324 is an overlay added in 2024 because the 305 and 786 codes ran short of numbers. All three serve the exact same Miami-Dade region.
Do I have to dial 10 digits for 324?
Yes. Overlay area codes like 324 always require 10-digit dialing for local calls.
Is 324 a new area code?
Yes. Introduced in 2024, 324 is one of the newest area codes in Florida and observes Eastern Time (EST/EDT).
Related 324 Guides
- Worried about spam or robocalls? Browse our Scam Alerts directory.