Prefix 314-251 — Ladue, MO
314-251 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 — 314-251 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.
NANPA's central-office code records list SOUTHWESTERN BELL (OCN 9533) as the code holder, assigned November 14, 2003. Because 314-251 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 314-248 | Mehlville | ONVOY, LLC - MO |
| 314-249 | Ladue | T-MOBILE USA, INC. |
| 314-250 | Saint Louis | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 314-252 | Ladue | TELEPORT COMMUNICATIONS AMERICA, LLC - MO |
| 314-253 | Ladue | SOUTHWESTERN BELL |
| 314-254 | Ladue | BANDWIDTH.COM CLEC, LLC - MO |
FAQ
Where is 314-251 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 314-251 numbers?
SOUTHWESTERN BELL 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 314-251 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.