The 904 area code is the first set of numbers in phone numbers in northeastern Florida. Most people in Jacksonville and nearby towns use it.
People search for it because they want to know:
- Which places use 904
- How to call safely
- If a number is real or fake
Some also check the 904 area code time zone or look up Northeast Florida phone numbers. This helps them call at the right time. Businesses like to have local numbers too. It makes people trust them more.
Here are some common questions:
- Which cities use the 904 area code?
- Can I keep my number if I move?
- Is there a new overlay number I should know about?
Knowing this code helps you call the right person, avoid fake numbers, and follow local phone rules.
History of the 904 Area Code
The 904 area code started a long time ago, in 1965. Florida needed more phone numbers, so the northern part of the state split from the 305 area code.
Over the years, Florida added new area codes because the numbers were running out. Here are some important changes:
- 1995: Part of 904 became 352 for Gainesville and central Florida.
- 1997: 850 was added for the Florida Panhandle.
- 2001: 386 was added for some central and northern areas.
In 2024, a new code called 324 was added. This is called an overlay. It means new numbers in the same area can start with 324, but old numbers keep 904. Now, everyone must dial all ten digits, even for local calls.
Historical Changes in 904 Area Code
| Year | Event | Notes |
|---|---|---|
| 1965 | 904 established | Split from 305 for North Florida |
| 1995 | Split to 352 | Gainesville & central Florida |
| 1997 | Split to 850 | Florida Panhandle |
| 2001 | Split to 386 | Central/North Florida |
| 2024 | Overlay 324 | Ten-digit dialing started |
The history shows that the 904 area code has changed many times. It grew because more people and more phones needed numbers. Learning about these changes helps people understand how Florida phone numbers work.
Geographic Coverage of 904 Area Code
The 904 area code is used in many places in northeastern Florida. It mostly covers Jacksonville and nearby towns. Here are the counties that use 904:
- Duval County phone area – Jacksonville city is here.
- St. Johns County area code – Includes St. Augustine.
- Clay County area code – Near Orange Park.
- Nassau County area code – Fernandina Beach and surrounding areas.
- Baker County area code – Small county with local numbers.
- Bradford County area code – Includes Starke.
- Union County area code – Small local area.
If you look at a Jacksonville phone number map, you can see all the towns covered by 904.
Some new phone numbers may start with 324. This is called an overlay. It means the same area has two codes.
Knowing this helps you stay connected safely. You will know which numbers are local and which might be new.
Time Zone Information
The 904 area code time zone is the Eastern Time Zone. Most of the time, it follows EST (Eastern Standard Time). In summer, it changes to EDT (Eastern Daylight Time).
- EST is 5 hours behind UTC.
- EDT is 4 hours behind UTC.
This is important if you call someone in the 904 area. You can check the time first to avoid calling too early or too late.
904 Area Code Time Zone Details
| Time Type | UTC Offset | Notes |
|---|---|---|
| EST | -5 | Standard Time |
| EDT | -4 | Daylight Saving Time |
How to Use and Lookup 904 Area Code Numbers
If you want to find a number with the 904 area code, there are tools and websites to help. You can use an area code lookup tool to check if the number is real.
- Local number vs VoIP number – Some numbers are traditional, some are internet-based (VoIP). Both work, but VoIP may need internet.
- Safety tips – Always check unknown numbers. Avoid answering calls from strange numbers. Some scammers use fake 904 numbers.
- Jacksonville telecommunications – Businesses and homes use 904 for calling. Local numbers make it easier to reach people nearby.
You can also search for numbers by county, city, or business. This helps you call the right person in Duval, St. Johns, or Clay County.
Sending Texts & Making Calls to 904 Area Code
Sending a 904 area code text message is easy. You just type the number like any other phone number. If it starts with 904, it means the person is in Jacksonville or nearby towns.
For calls, you can dial local or international numbers. Local calls inside Florida are simple. If you call from outside the U.S., you need the country code (+1 for the U.S.) first.
Be careful with wrong numbers. If you dial the wrong area code, your call might go far away or reach a wrong person.
Some people try to trick you with fake numbers. This is called spoofing. They may act like they are local to get you to answer. Always check unknown numbers before replying.
Using a Jacksonville local number is helpful. You can trust it more. Local numbers follow Florida local calling codes, so your calls are clear and correct.
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904 Area Code in Business & Daily Life
The 904 area code is important for businesses in Jacksonville. Companies want Jacksonville business phone numbers to look local. People trust businesses with numbers they recognize.
Using a local number can help your business look real. Even online businesses use new Florida area codes if they have local customers.
You can choose a number in two ways:
- Traditional phone numbers – Regular landlines or cell phones.
- VoIP numbers – Numbers that work with the internet. They are easy to set up.
If you are starting a new business, pick a local 904 number. This shows people that you are nearby and real. For example, a small shop in Jacksonville used a local number, and more customers called them because the number looked familiar.
Tip: Make sure your phone number is easy to read and works with local dialing rules.
Comparison Table – 904 vs Other Florida Area Codes
Here is a simple table that shows how 904 compares to other big Florida area codes:
| Area Code | Region Covered | Time Zone | Overlay | Notes |
|---|---|---|---|---|
| 904 | Northeast FL | ET | 324 | Jacksonville & surroundings |
| 352 | Central FL | ET | None | Gainesville & nearby area |
| 850 | Panhandle FL | CT | None | Tallahassee & Panhandle |
| 386 | North-Central FL | ET | None | Daytona & surrounding |
This table helps you see which code is used in each part of Florida. It also shows if there is an overlay like 324 with 904.
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Common Issues & Safety Considerations
The 904 area code can have some problems. Some people use scams or spam numbers to trick you. They might call pretending to be from Jacksonville. Always check numbers before you answer.
Sometimes calls can get sent to the wrong place. This is called misrouting. VoIP numbers can also have small issues because they use the internet.
Ten-digit dialing can confuse people. You now need to dial all numbers, even for local calls. Forgetting the extra numbers may make your call fail.
Tips to stay safe:
- Only answer numbers you know.
- Use Jacksonville telecommunications websites to check a number.
- Avoid giving personal info to unknown callers.
- Keep track of area code changes in Florida so you know which codes are real.
Knowing these tips helps you avoid trouble and stay connected safely.
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FAQs About 904 Area Code
What cities use 904 area code?
904 is used in Jacksonville and nearby towns like St. Augustine, Orange Park, Fernandina Beach, and Starke.
Can I keep my number if I move?
You might keep it if you stay in the same area. Moving far away may need a new area code.
How does the 324 overlay work?
New numbers in the same area may start with 324. Old numbers still use 904.
Is 904 in the Eastern Time Zone?
Yes, 904 follows EST in winter and EDT in summer.
What is the difference between VoIP and local numbers?
Local numbers use regular phones. VoIP uses the internet. Both work for calls.
Why do I need to dial ten digits now?
Because of the 324 overlay. Ten digits make sure your call goes to the right person.
Can scammers use 904 numbers?
Yes. Some use fake 904 numbers to trick people. Always check unknown calls.
Which counties use 904?
Duval, St. Johns, Clay, Nassau, Baker, Bradford, and Union counties.
Can businesses use 904 to look local?
Yes, having a Jacksonville local number makes businesses look real and trusted.
Are 904 area code numbers safe for texting?
Yes, but only text numbers you trust. Avoid messages from unknown senders.
Conclusion
The 904 area code is part of life in northeastern Florida. It covers Jacksonville and nearby counties. Its history shows how Florida area codes change as more people need phones.
Knowing the time zone, overlay codes like 324, and safe calling practices helps you stay connected.
For businesses, having a local Jacksonville area code number builds trust. For residents, it is part of local identity and daily communication.
Always use the 904 area code safely. Check numbers, follow ten-digit dialing rules, and avoid scams. This code is not just numbers—it’s part of Northeast Florida life.
Disclaimer
This article is for informational purposes only. Area code data, time zones, and number details may change over time. Always confirm information with your local phone provider or official telecommunications authority before making calls or sharing personal information.
Joseph Quinn is a writer and digital creator best known as the founder of FreakBobTime. With years of blogging experience, he blends technology, culture, and internet humor into unique stories and creative experiments. Through his work, Joseph brings back the playful, weird side of the web while making content that connects with readers worldwide.