Area code 341
Area code 341 serves Oakland and nearby parts of California, including Fremont, Hayward and Berkeley. It is on Pacific Time, which observes daylight saving time. 510 is an overlay for the same area.
Area code 341 at a glance
| State | California (CA) |
| Main city | Oakland |
| Time zone | Pacific Time |
| UTC offset | UTC−8 in winter, UTC−7 in summer |
| Daylight saving time | Yes |
| Overlay codes | 510 |
Cities in 341
- Oakland
- Fremont
- Hayward
- Berkeley
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 341 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 341 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 341 between |
|---|---|
| Eastern | 11:00 AM to 12:00 AM |
| Central | 10:00 AM to 11:00 PM |
| Mountain | 9:00 AM to 10:00 PM |
| Arizona | 8:00 AM to 9:00 PM |
| Pacific | 8:00 AM to 9:00 PM |
See the time in 341 without leaving your CRM
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Other area codes in California
Questions about 341
What time zone is area code 341?
Area code 341 is on Pacific Time. It observes daylight saving time.
Where is area code 341?
Area code 341 is in California. Its main city is Oakland, and it also covers Fremont, Hayward and Berkeley.
What are the legal hours to call a 341 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 341?
510 covers the same area as 341, so numbers in the same town can have either code.