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Where Is 904 Area Code?

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Database Updated: July 29, 2025
Florida Phone Number Lookups
Where Is 904 Area Code?

Where is Area Code 904?

Area Code 904 primarily serves the northeastern region of Florida. Individuals and businesses within Duval, St. Johns, Nassau, and Clay counties benefit from this local code. Major cities and communities covered include:

  • Jacksonville
  • St. Augustine
  • Orange Park
  • Atlantic Beach
  • Ponte Vedra Beach

Several smaller towns and communities in these counties also utilize the 904 area code, making it a critical part of Florida’s telecommunication infrastructure. The Florida Public Service Commission (PSC) and the Federal Communications Commission (FCC) administer local and statewide regulatory oversight for numbering assignments and compliance. 

What Time Zone Is 904 Area Code in the USA?

The 904 area code falls within the Eastern Time Zone (ET). Standard time in this region is observed under Eastern Standard Time (EST), which is UTC-5. During Daylight Saving Time (DST), clocks shift forward by one hour to Eastern Daylight Time (EDT), which is UTC-4. Most telecommunication services in this area automatically adjust their systems to reflect these time changes, ensuring consistent call routing and accurate billing across various providers.

History of the 904 Area Code

Area Code 904 traces its origins to the mid-1960s, reflecting the expansion in population and telephone usage across Florida. Initially introduced as a split from the state’s earlier numbering plan areas, 904 underwent several transitions to accommodate growing demand:

  • • 1965: Established to serve portions of northern and eastern Florida as a result of increased telephone subscribers.
  • • 1995: Parts of 904 were reassigned to create Area Code 352, addressing demand for new lines in central and northern Florida.
  • • 1997: Another split established Area Code 850, covering the Panhandle region.
  • • 1999: Additional changes led to the creation of Area Code 386, further reducing the geographic reach of 904.

How Many People Use the 904 Area Code?

The 904 area code covers a substantial population base in Northeast Florida. Jacksonville, as the largest city within this area, accounts for a significant portion of the telephone lines using 904. An approximate distribution indicates that:

  • More than 400,000 residents across Duval and surrounding counties could be reached through a 904 telephone number.
  • Urban centers in the region accommodate a dense user base, while outlying small towns and rural areas maintain essential connectivity for commerce, public safety, and personal communication.
  • Mobile carriers also assign 904 numbers to meet ongoing demand, ensuring coverage remains adequate for current and future subscribers.

Is the 904 Area Code Toll-Free?

The 904 area code is not classified as a toll-free prefix. It is a geographic code designated for residents and businesses in the northeastern part of Florida. Unlike toll-free codes—such as 800, 888, and 877—that allow callers to reach businesses without incurring direct charges, the 904 code functions under typical call billing structures:

  • Local calls within the 904 region may incur standard local rates or be included in unlimited local calling plans, depending on the service provider.
  • Long-distance charges could apply when dialing 904 from outside the local coverage area, based on the caller’s specific phone plan.

 

Cities in 904 Area Code
  • Jacksonville
  • Lakeside
  • Fruit Cove
  • Fleming Island
  • Jacksonville Beach
  • Oakleaf Plantation
  • Palm Valley
  • Bellair-Meadowbrook Terrace
  • Middleburg
  • St. Augustine
  • Atlantic Beach
  • World Golf Village
  • Yulee
  • Fernandina Beach
  • Asbury Lake
  • Orange Park
  • St. Augustine Shores
  • Neptune Beach
  • Green Cove Springs
  • Macclenny
  • St. Augustine Beach
  • Starke
  • Nassau Village-Ratliff
  • St. Augustine South
  • Butler Beach
  • Sawgrass
  • Nocatee
  • Hilliard
  • Villano Beach
  • Baldwin
  • Callahan
  • Crescent Beach
  • Flagler Estates
  • Penney Farms
  • Lawtey
  • Hastings
  • Glen St. Mary
  • Raiford
  • Hampton
  • Marineland
Counties in 904 Area Code
  • Duval
  • St. Johns
  • Clay
  • Nassau
  • Baker
  • Bradford
  • Union
Prefix Codes for Area Code 904
  • (904) 200
  • (904) 201
  • (904) 202
  • (904) 203
  • (904) 205
  • (904) 206
  • (904) 207
  • (904) 208
  • (904) 209
  • (904) 210
  • (904) 212
  • (904) 213
  • (904) 214
  • (904) 215
  • (904) 216
  • (904) 217
  • (904) 218
  • (904) 219
  • (904) 220
  • (904) 221
  • (904) 222
  • (904) 223
  • (904) 224
  • (904) 225
  • (904) 226
  • (904) 227
  • (904) 228
  • (904) 229
  • (904) 230
  • (904) 231
  • (904) 232
  • (904) 233
  • (904) 234
  • (904) 235
  • (904) 236
  • (904) 237
  • (904) 238
  • (904) 239
  • (904) 240
  • (904) 241
Florida Area Codes
  • 239
  • 305
  • 321
  • 324
  • 352
  • 386
  • 407
  • 448
  • 561
  • 645
  • 645
  • 656
  • 689
  • 727
  • 728
  • 754
  • 772
  • 786
  • 813
  • 850
  • 863
  • 904
  • 941
  • 954
Florida Phone Numbers
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