The 813 area code covers Tampa, Plant City and 1 more place in Florida.
Area code 813 is in Florida, on Eastern Time. In the 813 area, phone numbers are given out most in Hillsborough County, then Pasco County. It has been in service since 1953. 656 covers the same area, so two neighbours can have different area codes.
- Where
- Hillsborough County and Pasco County, Florida
- Time zone
- Eastern Time
- In service since
- 1953
- Shares its area with
- 656 (since 2022)
- Prefixes in use
- 783
- How to dial
- Local calls need all 10 digits: 813-555-0142.
Find out who called you from an 813 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (813) number is on today, use our free carrier lookup.
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Tampa holds 90% of the phone prefixes in area code 813.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 783 prefixes in use shows where 813 numbers are actually given out.
- Tampa702 prefixes, 90%
- Plant City44 prefixes, 6%
- Zephyrhills37 prefixes, 5%
Frontier holds the most phone number prefixes in area code 813: 233 of 783.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 783 prefixes in use in 813 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| FrontierLandline company | 233 | 30% |
| T-MobileMobile network | 96 | 12% |
| Metro by T-MobileT-Mobile's prepaid brand | 53 | 7% |
| AT&T MobilityMobile network | 47 | 6% |
| Level 3 (Lumen)Lumen's business and wholesale network | 36 | 5% |
| PAETEC (Windstream)Windstream's business phone network | 35 | 4% |
| 37 other carriers | 283 | 36% |
66% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
813 has been split 2 times and overlaid once since 1953.
1953
813 goes into service.
1995
On May 28, 1995, 941 splits off and takes part of the 813 area.
1998
On July 1, 1998, 727 splits off and takes part of the 813 area.
2022
On February 22, 2022, 656 is added on top of 813, so new numbers here can get either code.
An 813 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 813 are 727, 407 and 863.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Florida has 22 other area codes.
These are the questions people ask most about area code 813.
Where is area code 813?
813 covers Tampa, Plant City and Zephyrhills in Florida. In the 813 area, phone numbers are given out most in Hillsborough County, then Pasco County.
What state is area code 813 in?
Florida. 813 is a Florida area code on Eastern Time.
What cities use area code 813?
The places holding the most 813 prefixes are Tampa, Plant City and Zephyrhills. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 813?
No single phone company owns 813. NANPA's records show Frontier holds the most 813 prefixes, 233 of 783, followed by T-Mobile and Metro by T-Mobile. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 813 in?
813 is on Eastern Time.
When did area code 813 start?
813 went into service in 1953.
Is 813 the same area as 656?
Yes. 656 (since 2022) covers the same ground as 813. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial an 813 number?
Local calls need all 10 digits: 813-555-0142.
Is 813 a toll-free number?
No. 813 is a regular area code for Tampa and Plant City in Florida, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 813?
The closest are 727 (Clearwater, Florida), 407/321/689 (Orlando, Florida), 863 (Lakeland, Florida) and 352 (Gainesville, Florida), measured between the centres of each area.
Who called me from an 813 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 813 a scam?
813 is a real Florida area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.