Prefix 314-437 — Saint Louis, MO

NANPA CO code assignment, current as of July 28, 2026.

Numbers in the 314-437 prefix are registered to the Saint Louis rate center in MO, inside area code 314. The prefix is the second block of a ten-digit US number (314-437-XXXX) and pins the number to a billing locality.

NANPA's central-office code records list NEW CINGULAR WIRELESS PCS, LLC - IL (OCN 6534) as the code holder, assigned March 6, 2008. Because 314-437 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

The rate center lies in the St. Louis, MO-IL Metropolitan Statistical Area. The serving LATA is 520. Local time follows the Central zone.

Spoofing means this prefix on your screen doesn't guarantee a Saint Louis caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

FAQ

Where is 314-437 located?

The prefix is assigned to the Saint Louis rate center in MO, area code 314. It is part of the St. Louis, MO-IL Metropolitan Statistical Area.

Which company owns 314-437 numbers?

NEW CINGULAR WIRELESS PCS, LLC - IL 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 314-437 safe to answer?

The prefix itself says nothing about the caller. Legitimate Saint Louis businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.