Area codes · +1
Area code 813
Area code 813 covers Tampa, Florida. We hold 5,933 allocated blocks for it across 8 rate centres, split 51% mobile, 41% landline and 9% VoIP.
The other area codes laid over 813
Area code 813 does not have Tampa, Florida to itself. 1 other code — 656 — serves the same rate centres, laid over the same ground rather than dividing it. That is an overlay: a new code added when the old one ran out of numbers, covering the same streets. Two neighbours can hold different area codes, so the code says roughly when a number was issued rather than where it sits.
6561,020 blocks, 7 rate centres, mostly VoIP
Each holds its own blocks and its own carrier mix, so a 813 number and a 656 number from the same street can report different line types. Filtering Tampa, Florida by area code needs all 2 of them.
813 is not confined to Tampa, Florida itself: its blocks sit across 8 rate centres, named in the table below.
Florida is split across 23 area codes — 786, 904, 561, 813, 352, 407 and others. By allocated blocks 813 is the 4th largest of them, holding 7% of the Florida total.
Where 813 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Tampacen is shortened. Names are reproduced as recorded rather than expanded — the abbreviation is the key the block data is filed under.
| Rate centre | Blocks | Share of 813 |
|---|---|---|
| Tampacen | 2,402 | 40% |
| Tampa | 1,067 | 18% |
| Tampanth | 472 | 8% |
| Tampaest | 461 | 8% |
| Plant City | 424 | 7% |
| Tampawst | 414 | 7% |
| Zephyrhils | 347 | 6% |
| Tampasth | 333 | 6% |
Carriers holding the most 813 blocks
T-Mobile USA, Inc.632 blocks
Aerial Communications, Inc.549 blocks
Onvoy520 blocks
Frontier Florida Llc Dba Frontier Comm Of Florida500 blocks
Verizon Wireless481 blocks
Bandwidth405 blocks
No carrier holds more than 11% of 813; the blocks are spread thin across many companies.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 813 number still reports the carrier it started with. Closing that gap needs a live query against the routing database. How line type is derived.
Check a single 813 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 813?
Area code 813 covers Tampa, Florida. It is not the only code there: 656 is an overlay on the same rate centres, so a Tampa, Florida number can start with any of them.
Is a 813 number a mobile or a landline?
It can be either, and the digits do not say which. North American mobile and landline numbers share the same ranges, so the answer comes from the carrier holding the block. In 813 the split runs 51% mobile, 41% landline and 9% VoIP, so mobile is the most likely single answer.
Which carriers hold 813 numbers?
The largest holders are T-Mobile USA, Inc., Aerial Communications, Inc., Onvoy. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 813 numbers are there?
The code holds 5,933 allocated blocks in our copy of the numbering plan. A block is 1,000 or 10,000 consecutive numbers depending on how deeply it has been pooled, so 813 covers on the order of 5,933,000 possible numbers — most of which have never been issued to anyone.