---
title: "Area code 813: Florida, United States"
url: "https://lookvalid.com/area-code/813.md"
canonical_url: "https://lookvalid.com/area-code/813"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 813 serves Florida, United States. Number formats, numbering rules, a live phone validator and the other codes in Florida."
---

# Area code 813: Florida, United States

Area code 813 serves Florida, United States. Number formats, numbering rules, a live phone validator and the other codes in Florida.

NANPA lists 783 central office codes (prefixes) in use in area code 813, held by 45 holders across 8 rate centers.
The largest rate center is TAMPACEN, with 353 prefixes (45%).
Frontier Comm Of Florida holds the most prefixes, 233 (30%). 66% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 4,884 complaints on file for 3,695 numbers in 813, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1953-01-01
- Time zone: Eastern (E)
- Assigned overlays: 656 (2022-02-22)
- Prefixes in use: 783
- Pooled prefixes: 515 (66%)
- Rate centers: 8
- Companies holding prefixes: 45
- Assignment dates on file: 2001-01-16 to 2023-12-07 (355 prefixes)
- ZIP codes in its places: 63

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| TAMPACEN | 353 | 45% |
| TAMPA | 168 | 21% |
| TAMPAEST | 52 | 7% |
| TAMPANTH | 52 | 7% |
| PLANT CITY | 44 | 6% |
| TAMPAWST | 44 | 6% |
| ZEPHYRHILS | 37 | 5% |
| TAMPASTH | 33 | 4% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Frontier Comm Of Florida | 233 | 30% |
| Aerial Communications | 96 | 12% |
| Verizon Wireless | 73 | 9% |
| Metropcs | 53 | 7% |
| New Cingular Wireless PCS | 47 | 6% |
| MCI Worldcom Communications | 35 | 4% |
| 39 other carriers | 246 | 31% |

A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company.

## History

- 1953-01-01: Area code 813 went into service.
- 1995-05-28: Area code 941 went into service and names 813 as its parent.
- 1998-07-01: Area code 727 went into service and names 813 as its parent.
- 2022-02-22: Area code 656 went into service as an overlay in the same area as 813.

## Nearest area codes

The area codes closest to 813, measured between the centers of the ZIP code places they serve, are 727 (about 18 miles), 941 (about 48 miles), 863 (about 53 miles), 407 (about 78 miles) and 689 (about 78 miles).

## ZIP codes

63 ZIP codes fall in places that have a rate center in this area code. The places with the most are Tampa, FL (58 ZIP codes) and Plant City, FL (5 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes.

## Complaints on file

4,884 complaints for 3,695 numbers. Numbers whose latest complaint falls in each year:

- 2023: 202
- 2024: 177
- 2025: 195

## Questions

### Where is area code 813?

NANPA assigns area code 813 to Florida, United States.

### In which state does area code 813 sit?

Florida. 813 is one of 23 area codes the NANPA table assigns to the state.

### Which places does area code 813 cover?

The places with the most ZIP codes among the rate centers in 813 are Tampa, FL and Plant City, FL. The rate center list on this page shows all of them.

### Who owns area code 813?

NANPA assigns area codes. Within 813, Frontier Comm Of Florida holds the most prefixes, 233 prefixes or 30%.

### Which time zone does 813 use?

The NANPA NPA report lists the time zone for 813 as Eastern (E).

### What year did 813 enter service?

The NANPA NPA report gives an in-service date of 1953-01-01, so 813 has been in use since 1953.

### Does area code 813 have an overlay?

Yes. 656 (in service 2022-02-22) shares the same area with 813, so numbers from all of them are local to each other.

### Which area codes are nearest to 813?

The area codes closest to 813, measured between the centers of the ZIP code places they serve, are 727 (about 18 miles), 941 (about 48 miles), 863 (about 53 miles), 407 (about 78 miles) and 689 (about 78 miles).

### How many prefixes does area code 813 have?

NANPA's report dated 2026-10-17 lists 783 prefixes in service in 813, spread over 8 rate centers and 45 holders.

### Are there complaints about 813 numbers?

The FCC data on file has 4,884 complaints for 3,695 numbers in 813. They are unverified consumer reports. A number with no complaints on file is not proven safe.

Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).