🇺🇸 904 area code
Area code 904 covers Jacksonville, St. Augustine, Orange Park and Fernandina Beach and the surrounding area in Florida. It shares that territory with 324, so the same neighbourhood can have numbers in any of them. Enter a 904 number below for a free check before you call back.
- Location: Jacksonville, Florida
- Time zone: Eastern (UTC−5)
- In service since July 11, 1965
Look up a number
Validity, carrier, line type, and region on the first pass.
Area code 904 at a glance
- Area code
- 904
- Location
- Florida, United States
- Main cities
- Jacksonville, St. Augustine, Orange Park, Fernandina Beach, Middleburg, Ponte Vedra Bch
- Time zone
- Eastern (UTC−5)
- Local time now
- —
- In service since
- July 11, 1965
- Overlay codes
- 324
- Codes split from it
- 324, 352, 386, 850
- Local calls
- Dial 10 digits
- Number format
- (904) 555-0123
- From abroad
- +1 904 555 0123
Cities in area code 904
- Jacksonville
- St. Augustine
- Orange Park
- Fernandina Beach
- Middleburg
- Ponte Vedra Bch
- Green Cove Spgs
- Starke
- Yulee
- Callahan
Is a 904 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 904 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 904 number to people in Florida because a local-looking call is more likely to be answered. If a 904 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 904
904 entered service on July 11, 1965.
It is part of the 324/904 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
As the region grew, 324, 352, 386 and 850 were carved out of or added to 904.
FAQ
Area code 904 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 904?
Area code 904 is in Florida, United States. It covers Jacksonville, St. Augustine, Orange Park, Fernandina Beach, Middleburg and Ponte Vedra Bch.
What time zone is area code 904?
904 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 904?
324 serves the same area as 904. Numbers in all of them are local to one another.
When did area code 904 start?
904 entered service on July 11, 1965.
How do I find out who called me from 904?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 904?
If you live in or near Florida, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 904 callers who will not leave a message are best looked up before you call back.
Got a call from 904?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.