Area Code 341
Area code 341 is in California, USA , spanning 2 counties and serving 23 cities, including Oakland, Berkeley or Richmond; it currently uses 100 prefixes, assigned from 341-200-XXXX through 341-999-XXXX.
In service since July 22, 2019, area code 341 is an overlay Numbering Plan Area, part of overlay complex 510/341.
The current local time is .
For exact NPA boundaries see official 341 area code map
Phone number lookup
More California area codes:
Locate any 341-NXX prefix:
| NPANXX | Area Served1 | Date2 |
|---|---|---|
| 341-200 | Hercules/ Rodeo | 7/2/2020 |
| 341-201 | Fremont/ Newark | 12/17/2020 |
| 341-202 | Oakland [Main/ Piedmont] | 7/7/2021 |
| 341-203 | Richmond | 7/29/2021 |
| 341-204 | Fremont/ Newark | 10/28/2021 |
| 341-205 | Oakland [Main/ Piedmont] | 8/31/2021 |
| 341-206 | Fremont/ Newark | 10/15/2021 |
| 341-207 | Richmond | 10/26/2021 |
| 341-208 | Hayward | 10/26/2021 |
| 341-209 | Fremont/ Newark | 1/10/2022 |
| 341-210 | Oakland [Alameda] | 9/27/2021 |
| 341-212 | Oakland [Berkeley] | 11/21/2021 |
| 341-213 | Oakland [Main/ Piedmont] | 1/10/2022 |
| 341-214 | Hercules/ Rodeo | 4/12/2022 |
| 341-215 | Richmond | 2/4/2022 |
| 341-216 | Fremont/ Newark | 2/22/2022 |
| 341-217 | Oakland [Alameda] | 9/2/2022 |
| 341-218 | Oakland [Fruitvale] | 10/10/2022 |
| 341-219 | Oakland [Berkeley] | 6/3/2022 |
| 341-220 | Oakland [Main/ Piedmont] | 9/19/2022 |
| 341-221 | Hayward | 2/28/2022 |
| 341-222 | Oakland [Fruitvale] | 12/3/2019 |
| 341-223 | Oakland [Alameda] | 11/3/2022 |
| 341-224 | Fremont/ Newark | 12/12/2022 |
| 341-225 | Freemont/ Newark [Greenleaf] | 02/16/2023 |
| 341-226 | Oakland [Fruitvale] | 5/28/2020 |
| 341-227 | Fremont/ Newark [Oliver] | 02/16/2023 |
| 341-228 | Fremont/ Newark | 02/17/2023 |
| 341-229 | Oakland [Main/ Piedmont] | 03/30/2023 |
| 341-230 | Richmond | 04/12/2023 |
| 341-231 | El Sobrante/ Pinole | 05/08/2023 |
| 341-232 | Hayward | 05/12/2023 |
| 341-233 | Fremont/ Newark | 06/13/2023 |
| 341-234 | Oakland [Alameda] | 1/13/2021 |
| 341-235 | Freemont/ Newark [Greenleaf] | 08/04/2023 |
| 341-236 | Fremont/Newark [Oliver] | 08/04/2023 |
| 341-237 | Oakland [Berkeley] | 08/17/2023 |
| 341-238 | Oakland [Fruitvale] | 08/17/2023 |
| 341-239 | Oakland [Alameda] | 09/19/2023 |
| 341-240 | Hayward | 11/01/2023 |
| 341-241 | Hayward | 7/13/2022 |
| 341-242 | Richmond | 11/08/2023 |
| 341-243 | Hercules/ Rodeo | 12/21/2023 |
| 341-244 | Oakland [Trinidad] | 01/23/2024 |
| 341-245 | Hayward | 01/24/2024 |
| 341-246 | Fremont/ Newark [Oliver] | 02/07/2024 |
| 341-247 | Richmond | 02/07/2024 |
| 341-248 | Freemont/ Newark [Greenleaf] | 02/07/2024 |
| 341-249 | Freemont/ Newark [Greenleaf] | 02/20/2024 |
| 341-250 | Oakland [Fruitvale] | 03/18/2024 |
| 341-251 | El Sobrante/ Pinole | 03/27/2024 |
| 341-252 | Fremont/ Newark | 05/31/2024 |
| 341-253 | Oakland [Berkeley] | 06/18/2024 |
| 341-254 | Oakland [Berkeley] | 09/09/2024 |
| 341-255 | Oakland [Berkeley] | 09/10/2024 |
| 341-256 | Oakland [Fruitvale] | 09/12/2024 |
| 341-257 | Fremont/ Newark | 10/10/2024 |
| 341-258 | Hayward | 10/15/2024 |
| 341-259 | El Sobrante/ Pinole | 11/14/2024 |
| 341-299 | Oakland [Trinidad] | 4/18/2021 |
| 341-300 | Richmond | 9/17/2020 |
| 341-314 | El Sobrante/ Pinole | 12/7/2020 |
| 341-333 | Oakland [Berkeley] | 8/21/2019 |
| 341-336 | Fremont/ Newark | 5/28/2020 |
| 341-341 | Fremont/Newark [Oliver] | 09/20/2024 |
| 341-342 | Fremont/Newark [Oliver] | 7/8/2022 |
| 341-344 | Oakland [Trinidad] | 11/19/2021 |
| 341-345 | Fremont/ Newark | 2/16/2021 |
| 341-348 | Fremont/ Newark | 4/18/2021 |
| 341-356 | Fremont/ Newark | 5/28/2020 |
| 341-386 | Hayward | 4/18/2021 |
| 341-388 | Richmond | 4/18/2021 |
| 341-400 | Oakland [Fruitvale] | 9/16/2020 |
| 341-420 | Oakland [Fruitvale] | 10/28/2021 |
| 341-441 | Oakland [Main/ Piedmont] | 1/14/2022 |
| 341-444 | Crockett | 12/3/2019 |
| 341-465 | Fremont/ Newark | 12/28/2020 |
| 341-500 | El Sobrante/ Pinole | 1/4/2021 |
| 341-512 | Oakland [Berkeley] | 9/1/2022 |
| 341-529 | Fremont/ Newark | 9/16/2020 |
| 341-587 | Fremont/ Newark | 8/23/2021 |
| 341-600 | El Sobrante/ Pinole | 8/25/2020 |
| 341-666 | Oakland [Trinidad] | 12/30/2019 |
| 341-667 | Oakland [Fruitvale] | 7/7/2021 |
| 341-688 | Oakland [Berkeley] | 2/18/2022 |
| 341-699 | Oakland [Main/ Piedmont] | 9/16/2021 |
| 341-732 | El Sobrante/ Pinole | 7/7/2021 |
| 341-758 | Oakland [Fruitvale] | 4/18/2021 |
| 341-766 | Oakland [Berkeley] | 5/28/2020 |
| 341-777 | Hayward | 5/31/2019 |
| 341-786 | Fremont/ Newark | 2/22/2022 |
| 341-799 | Richmond | 5/27/2020 |
| 341-800 | Hayward | 12/3/2019 |
| 341-837 | El Sobrante/ Pinole | 1/10/2022 |
| 341-888 | Fremont/ Newark | 6/7/2019 |
| 341-895 | Oakland [Alameda] | 8/27/2020 |
| 341-899 | Oakland [Trinidad] | 9/15/2021 |
| 341-900 | Crockett | 11/13/2020 |
| 341-946 | Oakland [Berkeley] | 2/22/2021 |
| 341-999 | Richmond | 7/22/2019 |
- For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
- Assignment date.
- NXX prefixes last updated: November 22, 2024
Cities in area code 341
| City1 | County | Time Zone2 |
|---|---|---|
| Alameda | Alameda | P |
| Albany | Alameda | P |
| Berkeley | Alameda | P |
| Castro Valley | Alameda | P |
| Crockett | Contra Costa | P |
| El Cerrito | Contra Costa | P |
| El Sobrante | Contra Costa | P |
| Emeryville | Alameda | P |
| Fremont | Alameda | P |
| Hayward | Alameda | P |
| Hercules | Contra Costa | P |
| Knightsen | Contra Costa | P |
| Newark | Alameda | P |
| Oakland | Alameda | P |
| Piedmont | Alameda | P |
| Pinole | Contra Costa | P |
| Port Costa | Contra Costa | P |
| Richmond | Contra Costa | P |
| Rodeo | Contra Costa | P |
| San Leandro | Alameda | P |
| San Lorenzo | Alameda | P |
| San Pablo | Contra Costa | P |
| Union City | Alameda | P |
- Listed above are most places served by USA area code 341. When multiple places in a US state share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
- P stands for Pacific Time (currently ).