341 Area Code

Oakland, California

Oakland, California is the largest city covered by the 341 Area Code

Current Time

Pacific Time Zone

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341 Area Code Overview & Map

The 341 area code is a telephone area code in the North American Numbering Plan (NANP) serving much of the East Bay in California. It covers parts of Contra Costa County and western Alameda County, including the city of Oakland, but excluding Dublin, Livermore, Pleasanton, and Sunol. It originated from the 510 area code by means of area code split or overlay in 2019.

When was the 341 Area Code created?

The 341 area code was first put into service in 2019, by the North American Numbering Plan Administration (NANPA). Learn more about the US Area Code System

History

The 341 area code was created from the 510 area code, to meet the growing demand for new telephone numbers in California.

Where is the 341 Area Code located?

The 341 area code serves Oakland, California and the surrounding areas.

Overlays

The 341 is an overlay for the 510 area code(s), and serves the same area. Learn about overlays

341 Area Code Map

341 Area Code Map

Cities in the 341 Area Code

The 341 area code includes 33 cites in California.

City Population % in Area Code
Oakland, CA 390,724 100%
Fremont, CA 214,089 99%
Hayward, CA 144,186 97%
Berkeley, CA 112,580 100%
Richmond, CA 103,701 100%
San Leandro, CA 84,950 100%
Alameda, CA 73,812 100%
Union City, CA 69,516 100%
Castro Valley, CA 61,388 100%
Newark, CA 42,573 100%
San Pablo, CA 29,139 100%
Hercules, CA 24,060 100%
El Cerrito, CA 23,549 100%
San Lorenzo, CA 23,452 100%
Ashland, CA 21,925 100%
Albany, CA 18,539 100%
Pinole, CA 18,390 100%
Cherryland, CA 14,728 100%
El Sobrante, CA 12,669 100%
Piedmont, CA 10,667 100%
Emeryville, CA 10,080 100%
Fairview, CA 10,003 100%
Rodeo, CA 8,679 100%
Tara Hills, CA 5,126 100%
Kensington, CA 5,077 100%
North Richmond, CA 3,717 100%
East Richmond Heights, CA 3,280 100%
Crockett, CA 3,094 100%
Rollingwood, CA 2,969 100%
Montalvin Manor, CA 2,876 100%
Bayview, CA 1,754 100%
Sunol, CA 913 8%
Port Costa, CA 190 100%

341 Area Code NXX Prefixes

The 341 Area Code (NPA Code) has 70 prefixes (NXX Code). An NXX prefix, also known as a central office code or exchange code, is the three-digit code that follows the area code in a North American telephone number. Learn about NXX Prefixes

Area Code Prefix Usage Carrier Rate Center
341 200 Landline Fractel, LLC Hercules
341 201 Landline Telnyx LLC Fremont
341 202 Landline Teleport Communications America, LLC - Ca Oakland
341 203 Wireless Cellco Partnership DBA Verizon Wireless - Ca Richmond
341 204 Landline Bandwidth.com Clec, LLC - Ca Fremont
341 205 Landline Bandwidth.com Clec, LLC - Ca Oakland
341 206 Wireless Cellco Partnership DBA Verizon Wireless - Ca Fremont
341 207 Landline Bandwidth.com Clec, LLC - Ca Richmond
341 208 Wireless New Cingular Wireless Pcs, LLC Hayward
341 209 Landline Bandwidth.com Clec, LLC - Ca Fremont
341 210 Landline Bandwidth.com Clec, LLC - Ca Alameda
341 212 Landline Telnyx LLC Berkeley
341 213 Landline T-Mobile USA, Inc. Oakland
341 214 Wireless New Cingular Wireless Pcs, LLC Hercules
341 215 Landline Bandwidth.com Clec, LLC - Ca Richmond
341 216 Landline Bandwidth.com Clec, LLC - Ca Fremont
341 217 Landline Bandwidth.com Clec, LLC - Ca Alameda
341 218 Landline Comcast Ip Phone, LLC San Francisco
341 219 Landline U.s. Telepacific Corp. DBA Tpx Communications Berkeley
341 220 Landline Teleport Communications America, LLC - Ca Oakland
341 221 Landline T-Mobile USA, Inc. Hayward
341 222 Landline Fractel, LLC San Francisco
341 223 Landline Commio, LLC Alameda
341 224 Wireless New Cingular Wireless Pcs, LLC Fremont
341 225 Wireless New Cingular Wireless Pcs, LLC Fremont
341 226 Landline Fractel, LLC San Francisco
341 227 Wireless New Cingular Wireless Pcs, LLC Fremont
341 228 Wireless Cellco Partnership DBA Verizon Wireless - Ca Fremont
341 234 Landline Fractel, LLC Alameda
341 241 Landline Onvoy, LLC - Ca Hayward
341 299 Landline Fractel, LLC San Leandro
341 300 Landline Fractel, LLC Richmond
341 314 Landline Onvoy, LLC - Ca El Sobrante
341 333 Landline Fractel, LLC Berkeley
341 336 Landline Fractel, LLC Fremont
341 342 Landline Onvoy, LLC - Ca Fremont
341 344 Landline Sonic Telecom, LLC - Ca San Leandro
341 345 Landline Fractel, LLC Fremont
341 348 Landline Fractel, LLC Fremont
341 356 Landline Fractel, LLC Fremont
341 386 Landline Fractel, LLC Hayward
341 388 Landline Fractel, LLC Richmond
341 400 Landline Fractel, LLC San Francisco
341 420 Landline Sonic Telecom, LLC - Ca San Francisco
341 441 Landline Sonic Telecom, LLC - Ca Oakland
341 444 Landline Fractel, LLC Crockett
341 465 Landline Fractel, LLC Fremont
341 500 Landline Fractel, LLC El Sobrante
341 512 Landline Sonic Telecom, LLC - Ca Berkeley
341 529 Landline Fractel, LLC Fremont
341 587 Landline Fractel, LLC Fremont
341 600 Landline Fractel, LLC Hesperia
341 666 Landline Fractel, LLC San Leandro
341 667 Landline Fractel, LLC San Francisco
341 688 Landline Ton80 Communications, LLC Berkeley
341 699 Landline Fractel, LLC Oakland
341 732 Landline Fractel, LLC El Sobrante
341 758 Landline Fractel, LLC San Francisco
341 766 Landline Fractel, LLC Berkeley
341 777 Landline Wide Voice, LLC - Ca Hayward
341 786 Landline Fractel, LLC Fremont
341 799 Landline Fractel, LLC Richmond
341 800 Landline Fractel, LLC Hayward
341 837 Landline Ton80 Communications, LLC El Sobrante
341 888 Landline Wide Voice, LLC - Ca Fremont
341 895 Landline Twilio International, Inc. Alameda
341 899 Landline Fractel, LLC San Leandro
341 900 Landline Fractel, LLC Crockett
341 946 Landline Fractel, LLC Berkeley
341 999 Landline Fractel, LLC Richmond