Area codes · +1
Area code 314
Area code 314 covers Missouri. We hold 5,722 allocated blocks for it across 7 rate centres, split 43% mobile, 48% landline and 9% VoIP.
The other area codes laid over 314
Area code 314 does not have None to itself. 1 other code — 557 — 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.
557839 blocks, 7 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 314 number and a 557 number from the same street can report different line types. Filtering None by area code needs all 2 of them.
314 is not confined to None itself: its blocks sit across 7 rate centres, named in the table below.
Missouri is split across 9 area codes — 573, 816, 314, 417, 636, 660 and others. By allocated blocks 314 is the third largest of them, holding 18% of the Missouri total.
Where 314 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why St Louis 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 314 |
|---|---|---|
| St Louis | 2,206 | 39% |
| Ladue | 1,906 | 33% |
| Kirkwood | 600 | 10% |
| Crevecoeur | 451 | 8% |
| Mehlville | 224 | 4% |
| Sappington | 215 | 4% |
| Oakville | 111 | 2% |
Carriers holding the most 314 blocks
Southwestern Bell1,004 blocks
AT&T Wireless755 blocks
T-Mobile Usa, Inc.722 blocks
T-Mobile USA, Inc.572 blocks
Onvoy545 blocks
Bandwidth378 blocks
The largest holder, Southwestern Bell, has 18% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 314 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 314 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 314?
Area code 314 covers Missouri. It is not the only code there: 557 is an overlay on the same rate centres, so a Missouri number can start with any of them.
Is a 314 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 314 the split runs 43% mobile, 48% landline and 9% VoIP, so landline is the most likely single answer.
Which carriers hold 314 numbers?
The largest holders are Southwestern Bell, AT&T Wireless, T-Mobile Usa, Inc.. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 314 numbers are there?
The code holds 5,722 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 314 covers on the order of 5,722,000 possible numbers — most of which have never been issued to anyone.