The 324 area code covers the same area as 904, including Jacksonville, Saint Johns and 14 more places in Florida.
324 has been in service since 2024, on Eastern Time. 904 covers the same area, so two neighbours can have different area codes.
- Where
- 6 counties in Florida, mostly Duval County, Saint Johns County and Clay County
- Time zone
- Eastern Time
- In service since
- 2024
- Shares its area with
- 904 (since 1965)
- Prefixes in use
- 20
- How to dial
- Local calls need all 10 digits: 324-555-0142.
Find out who called you from a 324 number.
Enter the full 10-digit number to see who it is listed to, where it is registered, and whether it is a mobile, landline or VoIP line.
Jacksonville holds 50% of the phone prefixes in area code 324.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 20 prefixes in use shows where 324 numbers are actually given out.
- Jacksonville10 prefixes, 50%
- Fernandina Beach3 prefixes, 15%
- Saint Johns2 prefixes, 10%
- Green Cove Springs1 prefix, 5%
- Orange Park1 prefix, 5%
- Macclenny1 prefix, 5%
Also served: Green Cove Springs, Yulee, Callahan and Macclenny and 4 smaller places.
324 started in 2024 as an overlay on 904, and its ground has not changed since.
2024
324 starts as an overlay on 904: new numbers on the same ground.
A 324 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
Florida has 22 other area codes.
These are the questions people ask most about area code 324.
Where is area code 324?
324 covers Jacksonville, Saint Johns, Fernandina Beach and Orange Park and 12 more places in Florida, in Duval County, Saint Johns County and Clay County.
What time zone is area code 324 in?
324 is on Eastern Time.
Is 324 the same area as 904?
Yes. 904 (since 1965) covers the same ground as 324. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 324 number?
Local calls need all 10 digits: 324-555-0142.
Who called me from a 324 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 324 a scam?
324 is a real Florida area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.