Area code 831 covers part of Californiastate, covering most of Monterey, Santa Cruz, San Benito counties. It was started on Jan 01, 2000. This region follows US/Pacific + Daylight Savings timezone. Other popular area codes that belong to California state include 209, 213, 310, 323, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 858, 909, 916, 925, 949, 951.
Date Changed | Change Details |
May 20, 2014 | Area code 831-800 was introduced on Apr 08, 2013 and subscribers are operational from May 20, 2014. |
Mar 28, 2014 | Area code 831-856 was introduced on Feb 27, 2014 and subscribers are operational from Mar 28, 2014. |
Feb 04, 2014 | Area code 831-884 was introduced on Jan 23, 2014 and subscribers are operational from Feb 04, 2014. |
Dec 14, 2013 | Area code 831-821 was introduced on Dec 05, 2013 and subscribers are operational from Dec 14, 2013. |
Jun 04, 2013 | Area code 831-869 was introduced on Apr 09, 2003 and subscribers are operational from Jun 04, 2013. |
Oct 27, 2012 | Area code 831-824 was introduced on Oct 01, 2012 and subscribers are operational from Oct 27, 2012. |
Area Code | City | County | Population | Network Operator |
831-800-8 | Salinas | Monterey | 415,057 | CF Communications LLC dba Telekenex - CA |
831-800-7 | Salinas | Monterey | 415,057 | Comcast Phone of California LLC - CA |
831-800-0 | Salinas | Monterey | 415,057 | Vaya Telecom Inc - CA |
831-801 | Salinas | San Benito | 55,269 | Cellco Partnership dba Verizon Wireless - CA |
831-809 | Salinas | Monterey | 415,057 | Cellco Partnership dba Verizon Wireless - CA |
831-811 | 814,813 | One Call Services-Pipeline And Utility Safety | ||
831-818 | Sunnyvale | Santa Cruz | 262,382 | Cellco Partnership dba Verizon Wireless - CA |
831-821-0 | Salinas | San Benito | 55,269 | Cellco Partnership dba Verizon Wireless - CA |
831-824-2 | Oakland | Santa Cruz | 262,382 | Paetec Communications Inc - CA |
831-824-7 | San Francisco | Santa Cruz | 262,382 | Bandwidth.com CLEC LLC - CA |
831-824-5 | San Francisco | Santa Cruz | 262,382 | Broadwing Communications LLC - CA |
831-824-0 | San Francisco | Santa Cruz | 262,382 | Level 3 Communications LLC - CA |
831-824-0 | San Francisco | Santa Cruz | 262,382 | Teleport Communications Group - San Francisco |
831-824-8 | San Francisco | Santa Cruz | 262,382 | YMax Communications Corporation - CA |
831-824-1 | San Jose | Santa Cruz | 262,382 | Peerless Network of California LLC - CA |
831-824-3 | San Jose | Santa Cruz | 262,382 | Teleport Communications Group - San Francisco |
831-840-0 | Santa Clara | Santa Cruz | 262,382 | New Cingular Wireless PCS LLC |
831-844-0 | Salinas | Monterey | 415,057 | Pac-West Telecomm Inc - CA |
831-850 | Oakland | Santa Cruz | 262,382 | Pac-West Telecomm Inc - CA |
831-851 | Oakland | Santa Cruz | 262,382 | Pac-West Telecomm Inc - CA |
831-854-8 | Oakland | Santa Cruz | 262,382 | MetroPCS Inc |
831-854-0 | Oakland | Santa Cruz | 262,382 | Pac-West Telecomm Inc - CA |
831-854-7 | San Francisco | Santa Cruz | 262,382 | Bandwidth.com CLEC LLC - CA |
831-854-2 | Watsonville | Santa Cruz | 262,382 | Charter Fiberlink CA-CCO LLC - CA |
831-855 | Salinas | Monterey | 415,057 | Pac-West Telecomm Inc - CA |
831-856-0 | Monterey | Monterey | 415,057 | Bandwidth.com CLEC LLC - CA |
831-856-7 | Salinas | Monterey | 415,057 | Level 3 Communications LLC - CA |
831-856-0 | Salinas | Monterey | 415,057 | O1 Communications Inc - CA |
831-856-8 | Salinas | Monterey | 415,057 | SBC Internet Services Inc |
831-869-0 | Salinas | Monterey | 415,057 | Sprint Spectrum LP |
831-883-0 | Marina | Monterey | 415,057 | Pacific Bell Telephone Company |
831-884-0 | Marina | Monterey | 415,057 | Pacific Bell Telephone Company |
831-884-3 | Salinas | Monterey | 415,057 | Cellco Partnership dba Verizon Wireless - CA |
831-884-5 | Salinas | Monterey | 415,057 | Comcast Phone of California LLC - CA |
831-886 | Salinas | Monterey | 415,057 | Pac-West Telecomm Inc - CA |
831-887-0 | Salinas | Monterey | 415,057 | Pac-West Telecomm Inc - CA |
831-899 | Seaside | Monterey | 415,057 | Pacific Bell Telephone Company |
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