Duval County · Florida
Jacksonville, FL area codes and time zone
Quick answer
Jacksonville is served by area code 904, keeps EST time (GMT-4), and sits in county FIPS 12031.
- Area code
- 904Within 25 miles of the city centre
- Time zone
- ESTAmerica/New_York
- UTC offset
- GMT-4EDT in summer
- County FIPS
- 12031Duval County
Dialling from and to Jacksonville
What this means when you pick up the phone.
Local calls inside 904 may still work on seven digits, but ten-digit dialling is the safe default everywhere in the country now. From abroad, dial +1 then the ten digits.
More on Jacksonville
Other reference data for this city.