314 area code: location, overlays and numbers
In the US, telephone area code 314 serves St. Louis, Missouri. It has been in service since 1947 and shares an overlay with the 557 area code.
- Location
- St. Louis, in Missouri
- Year service began
- 1947
- Zone for local time
- Time: Central
- Overlay
- 557
- Calls within the area
- 10-digit dialing
- Rate centre list
- 7
- Exhaust projection
- 2060
- Country calling prefix
- +1 (United States)
Source: NANPA public reports, including the area code data and rate centre data, file dated 11/01/2026. The exhaust year comes from NANPA projections 2026-1 (April 2026). We are not an official NANPA site.
Get your own 314 number
A 314 number can come through two routes. Through its plan, a provider assigns a new number. It is picked at sign-up from the numbers the provider holds in the code. A seller advertises numbers it already owns, often with a pattern, at a one-time price. You then transfer your chosen number to a provider.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Local-number sellers with listings
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. This never changes the order, which is based on first-year cost. How we earn
Places in the 314 area code
For 314, NANPA identifies 7 rate centres. Each one is a local calling area where numbers are assigned:
Creve Coeur, Ladue, Mehlville, Kirkwood, Sappington, Oakville, Saint Louis.
Other related area codes
The 557 code covers the same area and uses the same pool of numbers. Any of these codes can provide a new number in this area. Ask for the one you want.
The other Missouri area codes are 816, 417, 573, 660, 636, 975 and 235.
314 area code questions
In what area is 314 used?
The 314 code rings in St. Louis, Missouri, and around the St. Louis, MO-IL region.
Which country code belongs to a 314 number?
+1. The North American Numbering Plan includes 314. From abroad, dial +1 314, then the 7-digit number.
What time is it in the 314 area code?
For 314, the time zone is Central.
Which callers use a 314 number?
A call can come from anyone with a number in this code. This includes homes, mobiles, local businesses and callers who fake a local number too. The 314 number appearing on your screen points to where it was assigned; it does not tell you who is calling.