Phone number reference · United States
305 area code
Miami-Dade County and the Florida Keys.
305 is associated with Miami-Dade and the Florida Keys. The 786 and 645 overlays mean customers in this region can have several different local prefixes. A number from the Miami region is not enough to distinguish a mainland address from an address in the Keys.
Miami-Dade and the Florida Keys
Geographic code · In service
305 at a glance
- Region
- Miami-Dade and the Florida Keys
- Time zone
- Eastern Time
- In service since
- 01-Jan-1947
- Overlay arrangement
- 305/645/786
Numbering details checked September 21, 2026 against the NANPA database. See the official area-code maps for boundaries.
Questions about 305
Is a 305 caller necessarily in Miami?
No. The numbering region also includes the Florida Keys, and callers can keep numbers after moving. Ask which city or island needs service rather than treating 305 as a street-level location.
Is a 305 call safe to answer?
The 305 prefix identifies a numbering region, not a caller's identity or trustworthiness. Verify an unexpected request by contacting the organization through a number you already know.
Can I get a 305 business number?
Search the available numbers in VeraDial. Inventory changes, so a 305 number is not guaranteed. You can also keep your current carrier number and forward voice calls to a VeraDial line; existing texts stay with your carrier.
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