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US area code · Florida

Area code 645

Where the 645 area code is, its overlay and how to dial a +1 645 number from anywhere.

CoversFloridaTime zoneEastern (ET)TypeOverlay
Quick answer

The 645 area code is in Florida, United States (Eastern (ET)). To call from abroad: +1 645 555-0123. It is an overlay, so all 10 digits are dialled.

StateFlorida
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since24-Feb-2022

The 645 area code is a geographic North American Numbering Plan (NANP) code covering Florida. It has been in service since 24-Feb-2022 and sits in the Eastern (ET) time zone.

Overlay 645 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

645305786

How to dial a 645 number

From abroad+1 645 555-0123
Within the US / Canada1 645 555-0123
Locally (same area)645 555-0123

Other Florida area codes

239305321324352386407448561656689727728754772786

Frequently asked questions

Where is the 645 area code?

The 645 area code is in Florida, United States (Eastern (ET)).

Is 645 an overlay area code?

Yes. 645 overlays the same region as 305, 786, so callers dial all 10 digits.

Do I have to dial 10 digits for 645?

Yes — dial the area code plus the seven-digit number.

How do I call a 645 number from another country?

Dial your exit code (or +), then 1, then 645, then the number: +1 645 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 645 number does not pinpoint a street or ZIP code.

Missed a call from +1 645?

In the 30 days to September 24, 2026, 80 unwanted calls showing a 645 number were reported to the US Federal Trade Commission, 53% of them recorded messages or robocalls. That puts 645 at #381 of 670 area codes reported.

Other30
Reducing your debt (credit cards, mortgage, student loans)10
Calls pretending to be government, businesses, or family and friends10
Medical & prescriptions7
Before you call back
  • If you do not know anyone in Florida, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 645 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 645 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 645:

New Cingular Wireless PCS, LLC 17Onvoy, LLC 15Wide Voice, LLC 9Multiple Ocn Listing 9Eon Telecom, Inc. 5 5

About 21.7% of the 92 prefixes in use belong to mobile carriers: a 645 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 645 — cities & rate centres