Prefix 314-357 — Ladue, MO
A phone number starting 314-357 was issued in the Ladue rate center of MO — part of area code 314.
The assigned code holder is T-MOBILE USA, INC., operating company number 6529, assigned November 15, 2011. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
A scammer can display 314-357 without ever touching MO. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
Ladue is part of the St. Louis, MO-IL Metropolitan Statistical Area. For routing purposes it sits in LATA 520. Numbers here keep Central time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 314-354 | Saint Louis | CHARTER IP ENABLED SERVICES, LLC |
| 314-355 | Ladue | SOUTHWESTERN BELL |
| 314-356 | Saint Louis | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO |
| 314-358 | Ladue | T-MOBILE USA, INC. |
| 314-359 | Ladue | T-MOBILE USA, INC. |
| 314-360 | Ladue | AMERICAN MESSAGING SERVICES, LLC |
FAQ
Where is 314-357 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 314-357 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 314-357 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.