904 Area Code – Jacksonville Location, Zip & Time Zone

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📞 904 Area Code — Quick Reference
📍 LocationJacksonville, Florida
🕐 Time ZoneEastern (UTC-5/UTC-4)
🗓️ StatusActive — Geographic

The 904 dialing code belongs to Jacksonville, Florida. Whether you received an unexpected call from this number or you’re trying to figure out where a 904 number is based, this guide covers the exact location, time zone, spam reputation, blocking instructions, and which cities fall under this code.

📍 Where Is the 904 Area Code Located?

The 904 area code is located in Florida, primarily serving Jacksonville and the surrounding region. It’s a standard geographic area code under the North American Numbering Plan (NANP). Keep in mind that mobile number portability means someone could carry a 904 number with them after moving — so the code tells you where the number was issued, not necessarily where the person is right now.

904 Area Code — Location Details
State/ProvinceFlorida (FL)
Major CityJacksonville
CountryUnited States (+1)
Time ZoneEastern (UTC-5/UTC-4)
TypeGeographic — Standard
NANPA StatusActive

🕐 904 Area Code Time Zone

The 904 area code operates in the Eastern Time Zone (UTC-5/UTC-4). Here’s how it compares to other US time zones:

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 Business hours (good to call)     Early / late hours     Night — do not call
Official Resources: Report Fraud — FTC Do Not Call Registry NANPA Directory
Time ZoneDifference from 904
Eastern TimeSame time
Central Time-1 hour
Mountain Time-2 hours
Pacific Time-3 hours
💡 Calling Tip: Reach someone in the 904 area between 10 AM – 4 PM their local time for the best chance of an answer. Calls outside those hours are more likely to be screened or ignored.

🛡️ Is 904 Area Code Spam or Scam?

Area code 904 is 100% legitimate — it serves Jacksonville, Florida. The problem is that scammers spoof 904 numbers constantly because people trust local-looking calls. The most common 904 scams involve fake utility shutoff threats, vehicle warranty extensions, and Social Security impersonation.

⚠️ Red Flag: If a 904 caller demands immediate payment via gift cards, wire transfer, or crypto — hang up. No legitimate organization uses these methods. Verify by calling the company’s official number directly.

How to verify: Don’t call back the number — look up the official number for whatever organization the caller claimed to represent and call that instead. Google the full 10-digit number in quotes to check if others have reported it as spam.

📵 How to Block 904 Spam Calls & Texts

Block on iPhone

  1. Open Phone → tap Recents
  2. Tap ⓘ next to the 904 spam number
  3. Scroll down → “Block this Caller”
  4. Silence all unknowns: Settings → Phone → Silence Unknown Callers → ON

Block on Android

  1. Open Phone → find the 904 number
  2. Tap ⋮ menu → “Block number”
  3. For broader blocking: Settings → Blocked numbers → Unknown toggle ON

Report Spam

  1. Forward spam texts to 7726 (SPAM)
  2. Report at reportfraud.ftc.gov
  3. Register at donotcall.gov or call 1-888-382-1222

🔍 Who Called from 904? Reverse Lookup

  1. Google the full 10-digit number in quotes — catches ~70% of unknown callers
  2. Check Whitepages.com or Truecaller.com
  3. Search 800notes.com for community reports
  4. No voicemail left? Almost certainly spam — legitimate callers leave messages
⚠️ One-Ring Scam: If a 904 number rings once and hangs up, do NOT call back. This scam connects you to a premium-rate line that charges your bill.

🔗 Nearby Area Codes

CodeLocationTime Zone
786Miami, FloridaEastern
561West Palm Beach, FloridaEastern
407Orlando, FloridaEastern
305Miami, FloridaEastern
954Fort Lauderdale, FloridaEastern

❓ 904 Area Code — FAQ

What state is 904 area code in?
The 904 area code is in Florida, serving Jacksonville and surrounding areas.
What city does 904 cover?
904 primarily covers Jacksonville and nearby communities in Florida.
Is 904 toll-free?
No. 904 is a geographic area code. Toll-free codes are 800, 833, 844, 855, 866, 877, 888.
What time zone is 904?
Eastern (UTC-5/UTC-4).
Is 904 a scam?
904 is legitimate — it serves real people in Jacksonville. But scammers may spoof 904 numbers. Verify suspicious callers independently.
Why do I keep getting 904 calls?
Repeated 904 calls without a known contact are likely robocalls. Use your phone’s Silence Unknown Callers feature.
Can I get a 904 number remotely?
Yes — VoIP services like Google Voice offer 904 numbers regardless of where you live.
Is 904 cell or landline?
904 covers both. US area codes don’t distinguish between mobile and landline.
How do I block 904 calls?
iPhone: Settings → Phone → Silence Unknown Callers. Android: Phone → Settings → Blocked numbers. For area-code blocking, use Truecaller or RoboKiller.

🔗 Related Area Code Guides

Updated April 2026 · Data from NANPA & FCC · areacodess.org/