Area code 813: Florida
Area code 813 is a US state area code for Florida, on Eastern Time. It has 783 prefixes in service across 8 rate centers, the largest being Tampa Central, Tampa and Tampa East. It shares its area with 656, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 813
America/New_York
Prefixes in service
783 of 792 possible
8 rate centers
Area code 813 facts
| Location | Florida, United States |
|---|---|
| Time zone | Eastern Time |
| Overlays | 656 |
| In service since | January 1, 1953 |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 813?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 813 rate centers with the most prefixes in service.
| Rate center | Prefixes |
|---|---|
| Tampa Central | 353 |
| Tampa | 168 |
| Tampa East | 52 |
| Tampa North | 52 |
| Plant City | 44 |
| Tampa West | 44 |
| Zephyrhills | 37 |
| Tampa South | 33 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 813 number?
NANPA's dialling plan for 813: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 813 | 813-555-0147 |
|---|---|
| From another US or Canadian area code | 1-813-555-0147 |
| From outside North America | +1 813 555 0147 |
| E.164, for CRMs and SMS tools | +18135550147 |
When did area code 813 start?
Area code 813 went into service on January 1, 1953. Today 813 and 656 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 813 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 813 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the Email + Phone plan.
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Area code 813 questions
- What state is area code 813?
- Area code 813 is in Florida, United States. Its largest rate centers by number of prefixes are Tampa Central, Tampa, Tampa East, Tampa North and Plant City.
- What time zone is area code 813 in?
- Eastern Time.
- What area codes overlay 813?
- 656. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 813 start?
- Area code 813 went into service on January 1, 1953.
- Is an 813 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 813 have?
- 783 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in Florida
239305321324352386407448561645656689727728754772786850863904941954
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.