904 Area Code Coverage: Jacksonville and Northeast Florida

If a call from the 904 area code just showed up on your phone, you're hearing from Jacksonville — the largest city by land area in the continental United States, and the anchor of Florida's First Coast. Locals have worn "904ever" as a point of pride for decades, and the area code recently gained a numbering partner for the first time in its long history.

This guide covers everything worth knowing about the 904 area code: where it's located, which cities and counties it covers, what time zone it runs on, the brand-new overlay changing how residents dial, the scam patterns to watch for, and how to get a local 904 number if you're opening a business or expanding into Jacksonville.

The 904 area code covers Duval, St. Johns, Nassau, and Baker counties, along with almost all of Clay County, in Florida's northeast corner. It's one of the most business-dense area codes on the Atlantic side of the state, home to a growing mix of logistics, finance, healthcare, and military employers.

Major cities and communities in the 904 area code include:

• Jacksonville: the anchor city and largest population center in the numbering plan area
• St. Augustine: the nation's oldest continuously occupied European-founded city
• Orange Park and Fleming Island: fast-growing suburban communities in Clay County
• Fernandina Beach: a historic port city on Amelia Island in Nassau County
• Jacksonville Beach and Atlantic Beach: coastal communities along the Atlantic shoreline

Geographically, the 904 numbering plan area covers Florida's entire First Coast region, a corridor anchored by the Port of Jacksonville and one of the largest naval installations on the East Coast.

The 904 area code went into service in 1965, splitting off from Florida's original 305 area code, which at the time covered the entire state. At launch, 904 covered a massive stretch of north and central Florida, well beyond just the Jacksonville area.

As Florida's population grew, regulators split the territory several times: the area around Ocala and Gainesville became 352 in 1995, and the western Panhandle, including Tallahassee and Pensacola, became 850 in 1998. A further split in 2001 carved out two noncontiguous sections into area code 386, narrowing 904 to roughly its current First Coast footprint — a repeated-split pattern similar to how the 305 area code region around Miami has also been carved down over the decades.

By the early 2020s, First Coast growth pushed 904 toward exhaustion again. Rather than splitting the region a fifth time, the Florida Public Service Commission approved 324 as an all-services overlay covering the exact same territory as 904 in May 2022, according to an First Coast News coverage of the overlay's arrival, with new numbers assigned starting February 26, 2024. Existing 904 numbers are unaffected; 324 is only assigned to newly issued lines.

Because 904 and 324 now share the same territory, every call in the region — even between two neighbors calling each other in the same Jacksonville zip code — requires the full area code plus the seven-digit number. Mandatory 10-digit dialing took effect January 29, 2024, about a month ahead of the first 324 numbers going into service.

The entire 904 area code sits in the Eastern Time Zone, observing:

• Eastern Standard Time (EST): UTC−5, in the winter months
• Eastern Daylight Time (EDT): UTC−4, from early March through early November

That means a 904 number keeps the same business hours as New York, Atlanta, and most of the East Coast — helpful to keep in mind when coordinating with West Coast teams or customers.

Area code 904 itself is completely legitimate — it's simply the dialing code for a large, real part of Florida's First Coast. But like most active area codes, it's frequently spoofed by scammers who fake a local caller ID so residents are more likely to answer a call that looks like it's coming from their own neighborhood.

Common scams reported against 904 numbers include:

• Government impersonation: callers posing as the IRS, Social Security Administration, or a process server threatening legal action or claiming your identity was stolen
• One-ring (Wangiri) scams: a call rings once and disappears, hoping you'll call back a premium-rate number
• Military and veteran impersonation scams: fake calls exploiting Jacksonville's large naval and veteran population
• Neighbor spoofing: scammers deliberately match the first six digits of your own number to appear more trustworthy

If you receive a suspicious call from a 904 number, don't share personal or financial information, hang up on any recorded message demanding immediate payment, and report the call to the Federal Trade Commission. The area code isn't the problem — caller ID spoofing simply makes it easy for bad actors to borrow it.

If you want a 904 number for personal or business use, the fastest option today is a cloud business phone platform. With a provider like Softtop, getting a 904 number takes just a few steps:

1. 1Sign up for a free trial — no credit card required
2. 2Open your number inventory and search Florida → 904
3. 3Choose a local DID, toll-free number, or vanity number from Softtop's US inventory of 800+ area codes
4. 4Assign it to a team, an AI Receptionist, or an individual extension
5. 5Go live in minutes with unlimited US calling included

Because Softtop provisions numbers instantly and supports number porting with zero port-out fees, you can also move an existing 904 number onto the platform in five to ten business days if you're switching providers rather than starting fresh.

Beyond simple geography, a local 904 number gives a business real advantages when reaching customers across Jacksonville and the First Coast — the same local-trust advantage businesses see using a 813 area code number across Tampa Bay:

• Higher answer rates: people are more likely to pick up a call that looks local
• Regional trust: a familiar area code signals you're accessible and invested in the community
• Marketing consistency: a local number pairs naturally with localized ads, listings, and campaigns
• No physical office required: cloud phone systems let you serve the region without leasing space there

On Softtop, every 904 number is backed by the same tools used across the platform: an AI Receptionist that answers every call in under a second, full call recording and transcription, CRM sync with HubSpot and Salesforce, and 99.999% uptime backed by an SLA.

The 904 area code has anchored Jacksonville and Florida's First Coast since 1965, surviving four rounds of splits before finally gaining a numbering partner in 324 rather than losing more territory. It runs on Eastern Time, stretches from the Georgia border to the edge of St. Augustine, and remains as central to local identity as "904ever" bumper stickers make it out to be.

Like any widely used area code, 904 is also a target for caller ID spoofing, so a little healthy skepticism toward unexpected calls goes a long way. And if your business wants to build a genuine local presence in Jacksonville, getting a number no longer requires a physical office or a new phone line — a cloud platform can have you calling, texting, and answering customers as a local business within minutes.

Whether you're trying to identify an unfamiliar call or planning your next market expansion, understanding the 904 area code — its geography, history, and quirks — puts you one step ahead.