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Get a local business phone number in Creve Coeur, MO

Creve Coeur's area codes, prefixes and carriers from NANPA records, and how to put a Creve Coeur number in front of your customers.

Area code
314 / 557
Exchanges
57NANPA-assigned
Carriers
14
Population
18,533Census 2024 est.

What area code is Creve Coeur, MO?

With 18,533 residents in the Census 2024 estimate, Creve Coeur sits in St. Louis County, Missouri. NANPA lists 57 exchanges for its rate center across 2 area codes; 314 has the most (51, 89%). 314 is part of an overlay with 557, so a new local number in Creve Coeur may carry any of those codes depending on which have numbers available. Creve Coeur is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 314 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Creve Coeur, MO
Area codeExchanges hereShareIn service sinceOverlay withTime zone
3145189%1947557Central
557611%2022314Central

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Who holds Creve Coeur phone exchanges

14 carriers hold the 57 exchanges assigned to Creve Coeur's rate center. Southwestern Bell has the most, with 19. 46 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Creve Coeur can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Creve Coeur, MO
Carrier (NANPA operating company)ExchangesShare
Southwestern Bell1933%
Onvoy, LLC - Mo814%
T-mobile USA, INC.611%
Mcimetro Access Transmission Services LLC - Mo58.8%
New Cingular Wireless PCS, LLC - Il47.0%
Teleport Communications America, LLC - Mo47.0%
Level 3 Communications, LLC - Mo35.3%
Paetec Itel, LLC23.5%
Charter Ip Enabled Services, LLC11.8%
Nuso, LLC11.8%
AT&T - Local11.8%
Onvoy Spectrum, LLC11.8%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Local prefixes for Creve Coeur

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Creve Coeur. The earliest assignment date recorded in the file for these codes is 2013. 11 of the 57 were assigned in 2020 or later.

Prefixes assigned in Creve Coeur, MO
Area codePrefixes (NXX)
314205, 220, 228, 275, 317, 336, 343, 370, 384, 392, 415, 434, 439, 453, 469, 485, 486, 514, 515, 523, 529, 542, 548, 568, 575, 576, 579, 581, 590, 594, 624, 628, 648, 673, 674, 682, 713, 720, 744, 786, 789, 796, 819, 844, 851, 864, 878, 886, 936, 985, 998
557220, 224, 226, 257, 444, 777

Source: NANPA utilized central office code file.

When Creve Coeur's exchanges were assigned

Assignment dates show when each block of Creve Coeur numbers was added to the local supply.

Creve Coeur, MO: exchanges by decade assigned
Decade assignedExchangesShare
2010s739%
2020s1161%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

Rate centers and local calling in Creve Coeur

What a caller sees as "local" is the area code plus prefix. In Creve Coeur, those come from the CREVECOEUR rate center, as recorded by NANPA.

Keeping an existing Creve Coeur number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 314 when you pick it.

Who does business near Creve Coeur

Creve Coeur is part of the St. Louis, MO-IL metro area, home to 2.8 million people in 2024. County Business Patterns counted 69,470 business establishments in the St. Louis, MO-IL metro area in 2023, employing 1,263,674 people. The largest sectors by establishment count are health care and social assistance (10,427), retail trade (8,095), and professional, scientific, and technical services (7,057).

Selected industries in the St. Louis, MO-IL metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants2,33445,28919.4
Full-service restaurants2,01949,93024.7
Agencies providing services for the elderly and persons with disabilities1,89816,5468.7
Physician practices1,78522,12612.4
Insurance agencies and brokerages1,5097,8395.2
Law offices1,39310,5097.5
Offices of real estate agents and brokers1,0992,5232.3
Landscaping services1,0927,5046.9

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Setting up a Creve Coeur business line

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

If you already have a number in Creve Coeur, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the St. Louis, MO-IL metro area, 18 users on RingCentral RingEX Core come to $540.00 a month and on Ooma Office Pro $449.10, at month-to-month list prices checked September 28, 2026. On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.

Monthly list price for an 18-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$359.00$4,308.00
Quo (Starter)$19.00 per user$342.00$4,104.00
Nextiva (Core)$23.00 per user$414.00$4,968.00
Ooma (Office Pro)$24.95 per user$449.10$5,389.20
Dialpad (Standard)$27.00 per user$486.00$5,832.00
RingCentral (RingEX Core)$30.00 per user$540.00$6,480.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Creve Coeur, MO?

Creve Coeur has exchanges in 314 and 557; 314 has the most.

How many phone companies have exchanges in Creve Coeur?

14, holding 57 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Creve Coeur business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Creve Coeur?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).