Get a local business phone number in Ladue, MO

Area codes in Ladue

Ladue, in St. Louis County, Missouri, had a Census-estimated population of 8,937 in July 2024. NANPA lists 303 exchanges for its rate center across 2 area codes; 314 has the most (286, 94%). 314 is part of an overlay with 557, so a new local number in Ladue may carry any of those codes depending on which have numbers available. Ladue 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.

Phone carriers in Ladue

20 carriers hold the 303 exchanges assigned to Ladue's rate center. Southwestern Bell has the most, with 83. 179 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Ladue can come from any of these blocks; once it is yours, porting lets it move between providers.

Local prefixes for Ladue

These are the central office codes NANPA records for Ladue. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 32 of the 303 were assigned in 2020 or later.

When Ladue's exchanges were assigned

The table groups Ladue's exchanges by the decade NANPA recorded them as assigned.

How local numbers work in Ladue

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

New local numbers are drawn from carrier inventory, so the exact 314 numbers available change over time; porting an existing number is free.

Who does business near Ladue

Ladue 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).

Setting up a Ladue 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.

Porting a number you already use in Ladue is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–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. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.