341 Area Code
California, USA
Local time now · Pacific Time
12:43 AM
Area code 341 is in California, USA, serving Oakland, Fremont, Berkeley and San Leandro. It uses Pacific Time — the time there now is 12:43 AM. 510 is an overlay for the same area, so local calls need 10-digit dialing. In service since 2019.
| Area code | 341 |
|---|---|
| Location | California, USA |
| Major cities | Oakland, Fremont, Berkeley, San Leandro, Alameda, Union City, Castro Valley, Newark |
| Time zone | Pacific Time |
| Overlay codes | 510 |
| In service since | 2019 |
Other area codes in California
209213279310323350357369408415424442530559562619626628650657661669707714738747760805818820831837840858909916925949951
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Frequently asked questions
Where is area code 341?
California, USA — including Oakland, Fremont, Berkeley, San Leandro and Alameda.
What time zone is area code 341?
Pacific Time.
How do I call a 341 number from abroad?
Dial your international access code, then 1 (the country code), then 341 and the 7-digit number — for example +1 341 555 0100. From the UK or India dial 00 1 341 …; from Bangladesh 00 1 341 … .
Is a call from 341 a scam?
Not by itself — 341 is an ordinary geographic area code in California. Numbers can be spoofed, so be careful with unexpected calls asking for money or personal details.
Sources: North American Numbering Plan Administrator (NANPA) NPA database (10/25/2026); major cities from Wikidata (CC0). An area code shows where a number was first assigned — with number portability and mobile phones, the caller may be anywhere.