Area code lookup
484 area code
- State
- DE, PA
- Cities covered
- 2
- Counties
- 2
- Time zone
- Eastern Time
Quick answer
Area code 484 serves Philadelphia and Wilmington in Delaware, Pennsylvania. It sits in Eastern Time and covers 2 counties and about 19 ZIP codes across the metros we track. Numbers there are also dialled as 215, 267, 302, 609, 610, 856.
Cities in the 484 area code
Each city links to its full local profile: sales tax, housing, income and ZIP codes.
| City | County | Time zone | ZIP codes |
|---|---|---|---|
| Philadelphia, PA | Philadelphia County | EST/EDT | 12 |
| Wilmington, DE | New Castle County | EST/EDT | 7 |
Related area codes
Codes that share or border the same calling area.
484 area code FAQ
The questions people ask about this code.
Where is area code 484?
484 is a geographic area code in Delaware, Pennsylvania, covering Philadelphia and Wilmington.
What time is it in the 484 area code?
484 observes Eastern Time (EST/EDT).
Is 484 a scam area code?
No — it is a normal geographic code, not a toll-free or premium-rate prefix. Caller ID can be spoofed on any code, so verify unexpected callers before sharing information.
Sources & transparency
- North American Numbering Plan Administrator (NANPA) area code assignments — area code to geography mapping and overlay relationships
- US Census Bureau, American Community Survey 2019-2023 5-year estimates — city, county and ZIP code geography
Last reviewed August 2026. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.