645 Area Code — Tampa, FL
Area code 645 serves Tampa and 2 other cities in Florida. Local time follows America/New_York. It overlays with 813, so 10-digit dialling is required.
- State
- Florida
- Primary city
- Tampa
- Timezone
- America/New_York
- In service since
- 2024
- Type
- Overlay
- Overlay codes
- 813
Overlay of 813
Cities Served by 645
The 645 area code covers 3 cities and communities in Florida.
- Tampa
- Saint Petersburg
- Clearwater
About Area Code 645
Area code 645 is a North American Numbering Plan (NANP) area code that has been in service since 2024. It is administered by NANPA on behalf of the FCC and serves the Florida region anchored on Tampa.
645 is an overlay code, which means it shares its geographic boundaries with one or more existing area codes (813). Overlays are created when a region exhausts the supply of phone numbers in its original area code. Within an overlay region, residents must dial all 10 digits even for local calls, because the same 7-digit number can exist under multiple area codes.
Mobile numbers in 645 are portable: a person who moved away from Tampa may still carry a 645 mobile number on their device. If you receive an unexpected call from a 645 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in Florida, you may also interact with neighbouring or overlay codes (813). See the related codes section below to explore the rest of Florida.
Other Florida Area Codes
Continue exploring the Florida numbering plan.
645 Area Code FAQ
Where is area code 645?
Area code 645 is located in Florida, primarily serving Tampa and surrounding cities including Saint Petersburg, Clearwater. The region operates on ET (America/New_York) time.
What state is 645 area code?
645 is a Florida area code. It was put into service in 2024 as an overlay and shares its geographic footprint with overlay code 813.
Is 645 a scam area code?
645 is a legitimate North American area code allocated by NANPA to Florida. Like any geographic area code, scammers sometimes spoof 645 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 645 use?
Area code 645 operates on ET (America/New_York). Numbers in this area code follow standard Florida time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 645 phone number?
Yes. Use the reverse lookup widget above to enter a full 645 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 645 and 813?
645 and 813 cover the same Florida geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.