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341 Area Code

Area code 341 is in California (CA), USA and some of the main locations it covers are Oakland, Berkeley, Richmond, etc. (jump to city list below).

In service since July 22, 2019, area code 341 is an overlay Numbering Plan Area, part of overlay complex 510/341 (overlaying NPAs cover the same area).

The current time for places served by area code 341 is 03:19:23 PM (Pacific Time Zone).

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Map of area code 341

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341 phone number location

NPANXX Area served1 Date2
341-200 Hercules/ Rodeo 7/2020
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] 9/2022
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
341-234 Oakland [Alameda] 1/13/2021
341-241 Hayward 7/13/2022
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
341-342 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] 9/2022
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
  1. 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.
  2. Assignment date.
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Cities in area code 341

City1 County Time2
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
  1. Listed above are most places served by area code 341. When multiple places in a state/province share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. P stands for Pacific Time Zone (currently 03:19:23 PM).
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