Area code · MO
314 area code
The 314 area code serves St. Louis, Missouri. Look up a specific 314 number, check spam reports, and stop spam calls automatically.
schedule2 min readUpdated May 15, 2026By the Halo team
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Location
St. Louis, MO
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Timezone
Central
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State
Missouri
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Major cities
St. Louis
ABOUTAbout the 314 area code
The 314 area code is assigned to St. Louis, Missouri. Phone numbers with this area code are used by residents and businesses in the St. Louis metropolitan area and surrounding communities.
If you've received an unwanted call from a 314 area code number, use the Halo phone lookup tool to check if it has been reported as spam. Halo AI blocks 99% of spam calls at the network level, protecting you from robocalls, scams, and telemarketers before they ever reach your phone.
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