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California · Pacific Time

350 Area Code: Concord, CA

The 350 area code covers Concord, Walnut Creek, Antioch and Livermore in California, on Pacific Time. Here is the current local time there, and whether you can legally place a solicitation call to a 350 number right now.

Current local time in the 350 area code

Current local time in the 350 area code

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Can you legally call a 350 number right now?

Checking…

DayLegal calling window in California
Sunday9:00 AM-9:00 PM
Monday9:00 AM-9:00 PM
Tuesday9:00 AM-9:00 PM
Wednesday9:00 AM-9:00 PM
Thursday9:00 AM-9:00 PM
Friday9:00 AM-9:00 PM
Saturday9:00 AM-9:00 PM

Windows shown are the stricter of the federal TCPA/TSR rule (8 a.m.-9 p.m. local) and California's own statute, in the called party's local time. Informational only, not legal advice. Check any number against the full TCPA calling hours calculator.

Area code 350 at a glance

StateCalifornia
Principal cityConcord
Time zonePacific Time
Overlay codes925
Weekday calling window9:00 AM-9:00 PM local
CountryUnited States

Cities in the 350 area code

These are the main population centers 350 serves. Smaller towns across the same California region share the code.

  • Concord
  • Walnut Creek
  • Antioch
  • Livermore

Calling 350 numbers legally

California is stricter than federal law. California prohibits automated and solicitation calls before 9 a.m. or after 9 p.m. local time (Public Utilities Code § 2875): a 9 a.m. start, stricter than the federal 8 a.m. Because the window follows the called party's local time, a 350 number is governed by California rules no matter where you are dialing from.

Ringless voicemail sits under the same rules as a live call, which is why TCPA compliance matters before you drop to a list. To check a whole list rather than one code, the phone number formatter tags every number with its state so you can segment sends by time zone.

Other California area codes

925Concord209Stockton213Los Angeles279Sacramento310Santa Monica323Los Angeles341Oakland408San Jose415San Francisco424Santa Monica442Oceanside510Oakland

Or browse every US area code.

FAQ

350 area code questions

350 is a US telephone area code serving California, on Pacific Time. Its principal city is Concord, and it also covers Walnut Creek, Antioch and Livermore. It shares the same territory with overlay code 925.
Area code 350 is in the state of California. It serves Concord, Walnut Creek, Antioch and Livermore, and its principal city is Concord.
The 350 area code is on Pacific Time (America/Los_Angeles). The panel above shows the current local time there, updated live.
It depends on the local time in California. California prohibits automated and solicitation calls before 9 a.m. or after 9 p.m. local time (Public Utilities Code § 2875): a 9 a.m. start, stricter than the federal 8 a.m. The live verdict above checks the current time against that window for you.
On weekdays, solicitation calls to California numbers are permitted 9:00 AM to 9:00 PM local time. Sunday hours are 9:00 AM to 9:00 PM.
Area code 350 shares its geography with area code 925. Overlay codes cover the same towns, which is why ten-digit dialing is required there: a 350 number and a 925 number can sit on the same street.
Not by itself. 350 is a legitimate California area code used by residents and businesses in Concord and Walnut Creek. Scammers do spoof caller ID to show a local area code, because people answer local numbers more often, so treat an unexpected call asking for payment or personal details with suspicion regardless of the prefix.

Reaching Concord at scale?

VoiceDrop delivers ringless voicemails in your own AI-cloned voice and two-way SMS to California lists, with calling-hour and DNC rules enforced automatically so every drop lands inside the legal window.

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