Every US area code, explainedUnited States · +1
AREA CODE · FLORIDA

Area code 904

Area code 904 covers Jacksonville, Florida. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Florida Major City: Jacksonville Eastern Time (ET) Overlay: 324/904
01 / WHERE IT IS

Where is area code 904?

Area code 904 is assigned to Jacksonville and the surrounding region in Florida. Calls to numbers that start with 904 are routed to this area.

Area code 904 shares its territory with 324. Because it is an overlay, local calls require dialing all 10 digits.

Counties covered

Duval CountySt. Johns CountyClay CountyNassau CountyBradford County

Line types

  • Mobile 32.27%
  • Landline 67.73%
02 / MAP

Area code 904 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in Jacksonville

This area code is in the Eastern Time (ET) time zone.

Local timeJacksonville, FL--:--:--

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04 / HOW TO DIAL

How to call Jacksonville

WITHIN THE US904 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 904 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 904 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 904 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 904 555 0123
🇦🇺Australia0011 1 904 555 0123
🇯🇵Japan010 1 904 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 904

Share of the number blocks by carrier and line type.

Landline

AT&T
46%
Sinch
9%
Windstream Communications
9%
Metro by T-Mobile
8%
Lumen Technologies
8%
Others
19%

Mobile

T-Mobile USA
35%
AT&T Mobility
29%
Verizon Wireless
21%
Sinch
7%
USA Mobility
6%
Others
3%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 904

781 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(904) 200 Mobile Jacksonville Verizon WirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL
(904) 201 Landline St Johns Lumen TechnologiesLEVEL 3 COMMUNICATIONS, LLC - FL
(904) 202 Landline Jacksonville AT&TBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
(904) 203 Landline Middleburg AT&TAT&T CORP.
(904) 204 Landline Jacksonville SinchONVOY, LLC - FL
(904) 206 Mobile Fernandina Beach AT&T MobilityNEW CINGULAR WIRELESS PCS, LLC - GA
(904) 207 Mobile Jacksonville T-Mobile USAPOWERTEL JACKSONVILLE LICENSES, INC.
(904) 208 Mobile Jacksonville T-Mobile USAPOWERTEL JACKSONVILLE LICENSES, INC.
(904) 209 Landline St Johns Windstream CommunicationsPAETEC ITEL, LLC
(904) 210 Mobile Jacksonville AT&T MobilityNEW CINGULAR WIRELESS PCS, LLC - GA

Showing 10 of 781 prefixes

07 / FAQ

Frequently asked questions about area code 904

Where is area code 904 used?
Area code 904 serves Jacksonville and the surrounding area in Florida, including Duval County, St. Johns County, Clay County, Nassau County, Bradford County.
What city is area code 904 from?
The main city of area code 904 is Jacksonville, FL.
What time zone is area code 904 in?
Area code 904 is in the Eastern Time (ET) time zone (America/New_York).
Is 904 an overlay area code?
Yes. It shares its territory with 324. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 904 from the United States?
Dial the 10 digits: 904 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 904 number from another country?
Dial your country's exit code (or +), then 1, then 904 and the seven-digit number. From a mobile you can use +1 904 XXX XXXX.
Which carriers use area code 904?
Most landline blocks belong to AT&T and most mobile blocks to T-Mobile USA. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 904 for landlines, mobiles or both?
Both. About 67.73% of the number blocks are landline, 32.27% mobile.
How do I save a 904 number in WhatsApp or my phone?
Save it in international format: +1 904 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 904?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

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