904 Area Code: Jacksonville Location, Time Zone, Dialing & How to Get a Number

Few three-digit numbers carry as much local pride as 904. From the skyline of downtown Jacksonville to the surf at Neptune Beach and the cobblestone streets of historic St. Augustine, the 904 area code is the shared calling identity of Northeast Florida's "First Coast." It tells anyone who sees it on a caller ID that you belong to the River City and the communities that surround it.

This guide goes beyond the basics. You'll get the exact counties and cities the 904 area code covers, the population it serves, the brand-new 324 overlay that changed how everyone dials, the rules for placing calls, and the quickest, cheapest way to get your own 904 number — whether you live in Jacksonville or run a business targeting it from across the country.

What Is the 904 Area Code?

The 904 area code is a geographic telephone area code in the North American Numbering Plan (NANP) assigned to Northeast Florida. It is one of the older codes in the country, having gone into service on July 11, 1965.

Today it serves roughly 1.65 million people and is firmly tied to Jacksonville — the most populous city in Florida and, by land area, one of the largest cities in the contiguous United States.

If you want a phone number that reads as authentically local to anyone in the Jacksonville metro, 904 is the prefix that does it. Here's the area code at a glance:

Where Is the 904 Area Code Located?

The 904 area code blankets the northeastern corner of Florida along the Atlantic coast, bordering Georgia to the north. Locals call this stretch the First Coastbecause it's where Spanish explorers first landed and founded St. Augustine — the oldest continuously occupied European-established settlement in the United States. The region mixes a major urban core (Jacksonville), affluent beach towns, fast-growing suburbs, and rural communities.

Counties covered by the 904 area code

The 904 area code spans seven counties in Northeast Florida:

• Duval County — home to Jacksonville, the region's economic engine
• St. Johns County — St. Augustine and upscale Ponte Vedra Beach
• Clay County — Orange Park, Fleming Island, and Middleburg
• Nassau County — Fernandina Beach, Yulee, and Amelia Island
• Baker County — Macclenny and Glen St. Mary
• Bradford County — Starke and the surrounding rural communities
• Union County — Lake Butler and Raiford

Major cities in the 904 area code

Beyond Jacksonville itself, the 904 area code reaches more than two dozen cities and towns. Here are the largest by population:

Popular destinations such as Ponte Vedra Beach (home to the PGA Tour's headquarters and the Players Championship), Amelia Island, and the Jacksonville Beaches all dial on 904 too — which is why the code is so closely linked with Northeast Florida tourism and hospitality.

904 Area Code Time Zone

The entire 904 region sits in the Eastern Time Zone — the same zone as New York, Miami, and Atlanta. That means Eastern Standard Time (EST, UTC−5) from early November to mid-March, then Eastern Daylight Time (EDT, UTC−4) for the rest of the year while Daylight Saving Time is in effect.

If you're calling Jacksonville from another region, plan around standard business hours of 9 AM to 5 PM Eastern. From the UK, the early-to-mid afternoon (local time) lines up well with Jacksonville's morning, and from India, the evening is the best window to reach someone during the Jacksonville workday.

The New 324 Overlay & 10-Digit Dialing

Here's the most important recent change — and the one many older 904 guides miss entirely. On February 26, 2024, a new area code, 324, was overlaid on top of the 904 region.

An overlay doesn't split the map or force anyone to change their existing number. Instead, 324 covers the exact same Northeast Florida footprint as 904, and new lines can be assigned either code once 904 inventory runs low.

The practical impact is simple but essential: you must now dial all 10 digits (area code + seven-digit number) for every local call, even when calling a neighbor. Seven-digit dialing no longer works. If you save local contacts, update them to the full 10-digit format so your calls always connect.

A Brief History of the 904 Area Code

When the North American Numbering Plan launched in 1947, the entire state of Florida used a single area code — 305. As the population boomed, the state was carved into more codes. The 904 area code was introduced on July 11, 1965, originally covering a large swath of northern Florida.

Over the following decades, growth forced 904 to shed territory through splits: the 352 area code was carved out for north-central Florida in 1995, and 386 was split off for the Daytona Beach and Lake City regions in 2001.

That left 904 focused squarely on Jacksonville and the First Coast — the compact, fast-growing footprint it serves today. The 2024 arrival of the 324 overlay marked the next chapter: instead of splitting the map again, regulators chose to add numbering capacity without disrupting anyone's existing 904 number.

How to Dial a 904 Area Code Number

Thanks to the 324 overlay, dialing in the 904 region follows the standard 10-digit format used across most of the US. Here's exactly how to place each type of call:

For emergencies anywhere in the region, dial 911. For non-emergency city services and information, 311 connects you to Jacksonville's local government line. When in doubt, save every contact in the full +1-904-XXX-XXXX international format — it works whether you're calling from down the street or overseas.

Common Uses & Industries in the 904 Area Code

Jacksonville has one of the most diversified economies in the Southeast, and 904 numbers power communication across all of it. The broader Southeast region is anchored by the 404 area code in Atlanta. The code shows up everywhere — on residential lines, mobile phones, business main lines, and the virtual numbers powering modern customer support. A few sectors lean on it especially heavily:

• Healthcare: Major systems like Baptist Health, UF Health Jacksonville, and the Mayo Clinic campus rely on 904 lines for appointments and patient support.
• Logistics & transportation: The Port of Jacksonville (JAXPORT) and a dense network of distribution centers make the region a Southeast shipping hub.
• Finance & insurance: Jacksonville is a major back-office and fintech center, with large operations from national banks and insurers.
• Military & defense: Naval Air Station Jacksonville and Naval Station Mayport anchor a substantial defense and contractor presence.
• Tourism & hospitality: The beaches, St. Augustine's historic district, and Amelia Island resorts drive year-round visitor traffic.
• Real estate & construction: One of the fastest-growing metros in Florida fuels constant demand for local-presence phone numbers.

Whether you run a clinic, a charter-boat business, or a remote sales team selling into Jacksonville, a 904 number is the credibility signal that gets your calls answered. Pair it with call forwarding, custom caller ID, and two-way SMS and you have a complete First Coast phone presence — no matter where you actually sit.

How to Get a 904 Area Code Number

There are a few ways to land a 904 number, but they're not created equal. Here's how the main options compare on speed, cost, and flexibility:

For nearly everyone, a virtual phone number is the fastest and most flexible route. With CallMama you can have a working 904 line in under a minute — here's the whole process:

How a 904 Number Helps Your Business

A local area code is one of the most underrated marketing assets a business can own. For companies serving Northeast Florida, a 904 number delivers measurable advantages:

• Higher answer rates: People are far more likely to pick up a call from a local 904 number than an unknown out-of-state or toll-free line.
• Instant local credibility: A Jacksonville prefix tells customers you're part of the community — not a faceless national call center.
• Stronger local SEO: A consistent 904 number across your Google Business Profile, website, and directories reinforces your local-pack rankings.
• Better marketing ROI: Local numbers on billboards, ads, and vehicle wraps convert better than generic ones because they feel relevant.
• Privacy for your personal line: Advertise a 904 business number while keeping your real cell number unlisted and protected.
• Cultural connection: In a proud city like Jacksonville, "rep the 904" isn't just a phone code — it's local identity that builds trust.

National brands use 904 numbers to open a credible Jacksonville presence without a physical office, while local shops use them to look established and reachable. Businesses expanding from Jacksonville into Louisiana often pair their 904 line with a 318 area code number for local presence in that market. If you operate across borders too, pair your 904 line with low-cost international calling to handle every market from a single app.

Is the 904 Area Code a Scam? Spotting & Avoiding Fraud

No — the 904 area code is not a scam. It's the legitimate geographic code for Jacksonville and Northeast Florida. That said, scammers can spoof any area code, including 904, to make a call look local and trustworthy. The number on your screen is never proof of who's actually calling.

Protect yourself and your business with a few simple habits:

• Never share sensitive details — Social Security numbers, bank details, or one-time passcodes — with someone who called you unexpectedly.
• Verify independently. If a caller claims to be your bank or a government agency, hang up and call the official number on their website or your statement.
• Be wary of urgency. Threats, deadlines, and "act now" pressure are classic scam tactics designed to stop you from thinking.
• Use call-blocking tools like Hiya, Truecaller, or Nomorobo, and register with the National Do Not Call Registry.
• Report fraud by filing an FTC fraud report so others in the 904 community stay protected.

Numbers issued by CallMama are real, NANPA-assigned lines routed through carrier-grade infrastructure that passes STIR/SHAKEN verification — so your outbound 904 calls show a clean, trustworthy caller ID, never a "Spam Likely" flag.

Why Get Your 904 Number from CallMama

You can get a Jacksonville number lots of places, but CallMama is built for speed, flexibility, and value:

• Live in under a minute — no SIM swap, no Florida address, no carrier visit.
• Works everywhere — make and receive calls and texts on iOS, Android, and the web.
• Smart calling built in — call forwarding, voicemail-to-email, call recording, and custom caller ID at no extra tier.
• Two-way SMS & MMS — text customers and receive verification codes on your 904 line.
• Keep it forever — your number stays yours, and you can cancel anytime with no penalty.

Ready to claim your spot on the First Coast? You can get a 904 Jacksonville number in minutes, or browse every US area code if you need a different city.

Conclusion

The 904 area code is far more than a dialing prefix — it's the shared identity of Jacksonville and Northeast Florida's First Coast, serving 1.65 million people across seven counties.

With the 324 overlay now live and 10-digit dialing the new normal, understanding how the region's numbering works matters more than ever. For residents, it's a badge of local pride; for businesses, it's a proven way to earn trust, lift answer rates, and win the local market.

The best part? You no longer need to live in Jacksonville to own a piece of it. With a virtual 904 number from CallMama, you can sound local on the First Coast from anywhere on Earth — activated in under a minute and ready to grow with you.