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zipcodes.pro — AREA-CODE/813

813 area code

Area code 813 is in Florida. It covers Tampa, Brandon, Riverview and 31 other places: 93 ZIP codes in Hillsborough and Pasco counties. Local time there is , Eastern Time. In service since 1953; 656 (2022) overlays it, so a number from there can have either code.

State
Florida
Time zone
Eastern
Largest city
Tampa
Overlays
656
In service since
1953
Rate centres
8
Prefixes assigned
783 (7,830,000 numbers)

Who calls from a 813 number

NANPA records the carrier each block of 813 numbers is assigned to. Of the 7.8 million 813 numbers assigned, 36% are with cable, internet-calling, business and other carriers (Onvoy and Mci Worldcom Communications); 35% with mobile carriers (T-Mobile, Verizon Wireless and AT&T Mobility); 27% with local phone companies (Frontier); 2% with paging companies.

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 813 numbers
CarrierKindShare
FrontierLandline27%
T-MobileMobile19%
Verizon WirelessMobile9%
OnvoyCable, VoIP, other8%
AT&T MobilityMobile7%
Mci Worldcom CommunicationsCable, VoIP, other5%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 813

The 3 places with a telephone rate centre of their own using 813, largest first. Each links to its ZIP codes.

Places in area code 813
PlaceZIP codesPopulation
Tampa, FL 58 401,618
Plant City, FL 5 40,887
Zephyrhills, FL 4 19,668

Nearby places using 813

These places have no rate centre of their own in NANPA's records; the nearest one uses 813. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 813

93 ZIP codes in 17 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 813 numbers are issued

NANPA's rate centres with the most 813 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 813
Rate centrePlacePrefixes
TAMPACEN Tampa 353
TAMPA Tampa 168
TAMPAEST Tampa 52
TAMPANTH Tampa 52
PLANT CITY Plant City 44
TAMPAWST Tampa 44

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 813

Where is area code 813?

Area code 813 is in Florida. It covers Tampa, Brandon, Riverview and 31 other places: 93 ZIP codes in Hillsborough and Pasco counties.

What ZIP codes are in area code 813?

93 ZIP codes, by the town each is mailed to: Tampa (58, 33601 to 33694), Brandon (4, 33508 to 33511), Riverview (4, 33568 to 33579), Plant City (5, 33563 to 33567) and 13 more towns. The full list is on this page.

What time zone is area code 813 in?

Eastern time.

Is a 813 number a mobile or a landline?

It can be either. 35% of 813 numbers are assigned to mobile carriers and 27% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 813?

656. They cover the same area as 813, so a new number there can be given any of them.

Does a 813 number mean the caller is in Florida?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 813 call can come from anywhere.

Other area codes in Florida

All 23 Florida area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 813.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/813

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