Introduction
The 324 area code has served Florida's First Coast since February 26, 2024, as an overlay for the existing 904 region around Jacksonville. It does not replace 904: every city and county assigned to 904 also falls under 324. Numbers issued before 2024 keep their original 904 digits, while new numbers can now carry either code. Despite this, a surprising number of published guides still describe 324 as a future code that has not launched.
This guide covers where 324 reaches, why it exists alongside 904, and what changes for callers on the First Coast. It also covers dialing rules, time zone, and the fastest way to get a number. Several existing sources get basic facts about 324 wrong, so this one relies on the Florida Public Service Commission, NANPA's records, and Wikipedia's archives.
324, Explained: An Overlay for Florida's First Coast
Area code 324 is an all-services overlay: a second code layered onto a region that already has one, rather than splitting it in two. NANPA forecast a need for 904 relief in October 2021 and petitioned Florida regulators in February 2022, favoring an all-services distributed overlay. A public workshop followed in March 2022, and 324 went live February 26, 2024, with permissive dialing having started the previous August. Nobody with an existing 904 number had to change it.
An overlay lets the old code keep working as before while opening a second pool of numbers for new lines, rather than forcing half the region onto new numbers. The tradeoff is 10-digit dialing for every call, covered below.
Is the 324 Area Code Even Active Yet?
Yes, fully. Yet several provider websites still describe 324 as currently unassigned, a future overlay, or a code that will eventually serve communities. None of that is accurate; 324 numbers have been issued to real customers for over two years. Reading a source that frames 324 in the future tense means reading outdated content.
The confusion likely traces back to how overlays get covered before launch: language written during the 2022 planning phase called 324 an assigned future code, and some of that wording never got updated once it activated. One provider's Jacksonville business examples make a similar error, listing companies headquartered in Pensacola and Tallahassee, across the state, as if local to 324. Checking a source's update date is a reasonable first step here.
Where the 324 Area Code Reaches on Florida's First Coast
The 324 area code mirrors the 904 footprint exactly, covering the northeastern corner of Florida from the Georgia state line down to St. Johns County.
Cities and Counties in the 324 Footprint
Jacksonville is the largest city in the 324/904 area by a wide margin, and the anchor of the First Coast. The footprint includes all of Duval, St. Johns, Nassau, and Baker counties, plus almost all of Clay County, covering St. Augustine, Fernandina Beach, Orange Park, Ponte Vedra Beach, and the beach towns of Atlantic Beach, Neptune Beach, and Jacksonville Beach. Putnam County and Palatka are not part of this footprint, despite what a few sources claim; that area uses 386.
Bordering Area Codes
To the west and south, 904/324 borders 386, covering Daytona Beach, DeLand, and Gainesville. To the north, it borders 912, serving Savannah and southeast Georgia. The region has no bordering code to its east, since Duval and St. Johns counties end at the Atlantic coastline.
How Jacksonville Almost Ended Up With a Different Area Code Entirely
In 1995, with 904 overcrowded, regulators drafted a three-way split: Jacksonville would have been reassigned to a brand-new code, 234, while Daytona Beach took 386 and the Panhandle kept 904. Complaints from residents and businesses, plus opposition from NANPA and the FCC guide, pushed the state toward a different arrangement, sending the Panhandle to 850 instead and letting Jacksonville keep 904. The 234 code meant for Jacksonville was later assigned to an overlay complex in Akron, Ohio.
Growth returned within a few years, and in 2001 the state carved out 386 for Daytona Beach and Gainesville, shrinking 904 to roughly its current footprint. By the 2020s, 904 was filling up again, and this time regulators chose an overlay instead. Three brushes with renumbering in three decades, and Jacksonville kept its original 904 through all of them.
904 or 324: Does It Matter Which One a Caller Gets?
Functionally, no. Both codes serve the same region under the same rules, a pattern seen in other overlay markets like the 436 area code in the Cleveland metro.
| Factor | Area Code 904 | Area Code 324 |
|---|---|---|
| Status | Original code, active since 1965 | Overlay code, active since February 2024 |
| Coverage area | Same numbering area | Same numbering area |
| Assigned to | Numbers issued before 2024 | New numbers issued from 2024 onward |
| Dialing requirement | 10-digit dialing required | 10-digit dialing required |
| Call cost and quality | Identical | Identical |
| Availability for new lines | Limited, prefix-dependent | Increasingly the default for new numbers |
A 904 number carries no more legitimacy than a 324 one; both ring and cost exactly the same. The only real decision point is for businesses ordering a new number, where 324 may now be the only option in some prefixes.
Why Every First Coast Call Now Needs All 10 Digits
Ten-digit dialing, area code plus seven digits, applies to every call in the 904/324 region, even between neighbors. This took effect ahead of 324's launch, since an overlay only works if every call includes the area code — otherwise the network cannot tell a 904 number from a 324 one sharing the same digits. Permissive dialing began in August 2023, giving residents roughly six months to adjust before it became mandatory that February.
For anyone who moved to the region after 2024, 10-digit dialing has simply always been the rule. Older equipment, like alarm systems or fax machines still holding seven-digit numbers, is the main place the old habit lingers. Toll-free numbers, 911, and other short-form codes still dial the old way; the 10-digit rule applies only to standard calls.
What Time Is It in the 324 Area Code?
The entire 904/324 region sits in the Eastern Time Zone year-round, with no internal split to account for. Businesses calling from the West Coast should plan around the three-hour difference: a 9 a.m. Pacific call lands at noon Eastern.
This matters most for call centers and SMS campaigns targeting the region, since a misconfigured time zone can push outreach outside legally acceptable calling-hour windows. Setting the account default to Eastern (US & Canada) avoids the most common mistake.
How to Get a 324 Area Code Number
Getting a 324 number does not require living in Florida. Most virtual and wholesale VoIP providers carry the 324 pool directly, so setup takes minutes from anywhere.
What a Local 324 Number Signals to First Coast Customers
A 324 or 904 number tells callers in Jacksonville, St. Augustine, or Fernandina Beach that a business has a genuine local presence, even if its office sits elsewhere. That matters because answer rates for unfamiliar area codes have dropped as spam calls increased; a number matching the caller's own area code is more likely to get picked up. For healthcare offices, real estate agents, and home-service contractors, a local number reinforces a First Coast identity an out-of-state number cannot match.
Businesses entering the Jacksonville market without a physical office often choose 324 because it is available even after every 904 number in a prefix is claimed, making it the practical option for new entrants, not a downgrade. Remote teams also use local 324 numbers for a direct line without a desk phone. Either way, the number works identically to a 904 one.
Conclusion
The 324 area code is best understood as 904's overlap partner, not a new or future region: same cities, same counties, same dialing rules, just a second pool of numbers for a First Coast that had nearly run out of the first. It has been fully active since February 26, 2024, regardless of what a handful of outdated pages still claim. Jacksonville has brushed up against renumbering three times since the 1990s and kept its original 904 through all of them, with 324 simply adding capacity.
For everyday calling, the takeaways are simple: dial all 10 digits every time, expect Eastern Time year-round, and do not assume a 324 number is less established than an older 904 line. Businesses looking to get their own 324 number can do so through most virtual number providers in a few minutes, no Florida address required.
