Prefix 314-310 — Ladue, MO
314-310 identifies a block of numbers in Ladue, MO, within the 314 area code. Every US prefix is tied to exactly one rate center; this one is Ladue.
The rate center lies in the St. Louis, MO-IL Metropolitan Statistical Area. The serving LATA is 520. Local time follows the Central zone.
Treat the on-screen number as a hint, not evidence — 314-310 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
Code-holder of record: ONVOY, LLC - MO (OCN 093F), assigned November 23, 2015. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 314-310 numbers may be served by different companies.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 314-307 | Ladue | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO |
| 314-308 | Ladue | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 314-309 | Saint Louis | T-MOBILE USA, INC. |
| 314-312 | Saint Louis | BANDWIDTH.COM CLEC, LLC - MO |
| 314-313 | Ladue | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO |
| 314-314 | Saint Louis | ONVOY, LLC - MO |
FAQ
Where is 314-310 located?
The prefix is assigned to the Ladue rate center in MO, area code 314. It is part of the St. Louis, MO-IL Metropolitan Statistical Area.
Which company owns 314-310 numbers?
ONVOY, LLC - MO holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 314-310 safe to answer?
The prefix itself says nothing about the caller. Legitimate Ladue businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.