Prefix 314-585 — Ladue, MO
314-585 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 — 314-585 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.
The assigned code holder is T-MOBILE USA, INC., operating company number 6529, assigned April 19, 2013. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 314-582 | Saint Louis | ONVOY, LLC - MO |
| 314-583 | Saint Louis | T-MOBILE USA, INC. |
| 314-584 | Saint Louis | ONVOY, LLC - MO |
| 314-586 | Kirkwood | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 314-587 | Ladue | SOUTHWESTERN BELL |
| 314-588 | Saint Louis | SOUTHWESTERN BELL |
FAQ
Where is 314-585 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 314-585 numbers?
T-MOBILE USA, INC. 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 314-585 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.