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The 324 area code covers the same area as 904, including Jacksonville, Saint Johns and 14 more places in Florida.

Area code 324 is in Florida, on Eastern Time. In the 324 area, phone numbers are given out most in Duval County, then Saint Johns and Clay counties. It has been in service since February 26, 2024. 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
February 26, 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, the city and state on the listing, and whether it is a mobile, landline or VoIP line. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup.

Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.

Free & rate-limited. No signup required to try.

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%
One dot per US area code; 324 is the ringed one.

Also served: Green Cove Springs, Yulee, Callahan and Macclenny and 4 smaller places.

Each prefix, or block of 1,000 numbers inside it, is also handed to a carrier. A number keeps its digits when its owner switches carrier, so the prefix no longer tells you who carries it today. Our free carrier lookup shows which carrier a 324 number is on now.

324 started in 2024 as an overlay on 904, and its ground has not changed since.

  1. 2024

    324 starts on February 26, 2024, 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.

  1. Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
  2. Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
  3. 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.
  4. Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.

The area codes closest to 324 are 386, 352 and 912.

This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.

386Daytona Beach, FL352Gainesville, FL912Savannah, GA407 / 321 / 689Orlando, FL229Albany, GA813 / 656Tampa, FL

Florida has 22 other area codes.

239Fort Myers305Miami321Cocoa352Gainesville386Daytona Beach407Orlando448Tallahassee561West Palm Beach645Miami656Tampa689Orlando727Clearwater728West Palm Beach754Fort Lauderdale772Port Saint Lucie786Miami813Tampa850Tallahassee863Lakeland904Jacksonville941Sarasota954Fort Lauderdale

Browse every US area code

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 the 324 area, phone numbers are given out most in Duval County, then Saint Johns and Clay counties.

What state is area code 324 in?

Florida. 324 is a Florida area code on Eastern Time.

What cities use area code 324?

The places holding the most 324 prefixes are Jacksonville, Saint Johns, Fernandina Beach, Orange Park, Jacksonville Beach, Middleburg, Ponte Vedra Beach and Starke, out of 16 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.

What time zone is area code 324 in?

324 is on Eastern Time.

When did area code 324 start?

324 went into service on February 26, 2024, as an overlay on 904: new numbers for the same area.

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.

Is 324 a toll-free number?

No. 324 is a regular area code for Jacksonville and Saint Johns in Florida, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.

What area codes are near 324?

The closest are 386 (Daytona Beach, Florida), 352 (Gainesville, Florida), 912 (Savannah, Georgia) and 407/321/689 (Orlando, Florida), measured between the centres of each area.

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.