Area Code 341
Area code 341 covers Oakland and nearby cities including Fremont, Hayward, Berkeley in California, in the Pacific Time.
Area code 341 quick facts
| Location | Oakland, California |
|---|---|
| Time zone | Pacific Time |
| In service | 2019-07-22 |
| Overlay codes | 510 |
| Nearby codes | 510, 408, 669, 650, 925, 209 |
| Carrier coverage | 107 prefixes; 42% wireless |
| FTC complaint data | 84 complaints across 16 numbers |
| Data current as of | August 2, 2026 |
Is a call from 341 a scam? Who called me from 341?
FTC complaints involving 341 numbers
Numbers shown with area code 341 in the FTC's Do Not Call “Reported Calls” database (recent reporting window). Most common reported reasons: “Other”, “Reducing your debt (credit cards, mortgage, student loans)”, “No Subject Provided”.
Most-complained 341 numbers:
- (341) 200-6589 — 17 complaints
- (341) 208-5217 — 12 complaints
- (341) 800-0226 — 6 complaints
- (341) 204-9370 — 6 complaints
- (341) 220-0863 — 5 complaints
These are FTC Do Not Call complaints filed about specific numbers shown with this area code — frequently spoofed. The area code itself is not a scam. See the most-reported area codes and the most-reported phone numbers nationwide.
Cities in area code 341
Oakland, Fremont, Hayward, Berkeley, Richmond, San Leandro, Alameda, Union City, Newark, Castro Valley, El Cerrito, San Lorenzo
Area codes by city
- Oakland area codes
- Berkeley area codes
- Fremont area codes
- Hayward area codes
- Union City area codes
- Alameda area codes
- San Leandro area codes
Carriers in area code 341
Area code 341 spans 107 prefixes, about 42% wireless. Top carriers: ONVOY, LLC - CA, NEW CINGULAR WIRELESS PCS, LLC, T-MOBILE USA, INC., CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA. Look up the carrier and line type for a 341 number.
Other California area codes
- 209 — Stockton
- 213 — Los Angeles
- 279 — Sacramento
- 310 — Compton
- 323 — Los Angeles
- 350 — Stockton
- 357 — Fresno
- 369 — Santa Rosa
- 408 — San Jose
- 415 — San Francisco
- 424 — Compton
- 442 — Victorville
- 510 — Oakland
- 530 — Marysville
- 559 — Fresno
- 562 — Long Beach
- 619 — San Diego
- 626 — Alhambra
- 628 — San Francisco
- 650 — Palo Alto
- 657 — Anaheim
- 661 — Bakersfield
- 669 — San Jose
- 707 — Santa Rosa
- 714 — Anaheim
- 738 — Los Angeles
- 747 — San Fernando
- 760 — Oceanside
- 805 — Oxnard
- 818 — Van Nuys
- 820 — Camarillo
- 831 — Salinas
- 837 — Redding
- 840 — Pomona
- 858 — San Diego
- 909 — Ontario
- 916 — Sacramento
- 925 — Concord
- 949 — Irvine
- 951 — Riverside
Nearby area codes
Frequently asked questions
Where is area code 341?
Area code 341 covers Oakland and nearby cities including Fremont, Hayward, Berkeley in California, in the Pacific Time.
What cities use area code 341?
Area code 341 serves Oakland, Fremont, Hayward, Berkeley, Richmond, and 8 other communities in California.
What time zone is area code 341 in?
Area code 341 is in the Pacific Time (America/Los_Angeles).
How do you dial a 341 number?
Dial all 10 digits: 341 followed by the 7-digit local number. From abroad, dial +1 341 and the local number.
Is a call from area code 341 a scam?
A 341 number is geographically tied to California, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.
Is 341 a country code?
No. 341 is a US area code (a domestic 3-digit code), not a country code. The country (calling) code for the United States is +1, shared across the North American Numbering Plan. So a full 341 number written for international dialing looks like +1 341 followed by the 7-digit local number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.