Area code 831 covers part of Californiastate, covering most of Monterey, 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 831-920 was introduced on Dec 27, 2006 and subscribers are operational from May 20, 2014. |
May 20, 2014 | Area code 831-975 was introduced on Apr 30, 2009 and subscribers are operational from May 20, 2014. |
May 20, 2014 | Area code 831-998 was introduced on Jan 12, 2007 and subscribers are operational from May 20, 2014. |
Dec 29, 2013 | Area code 831-912 subscribers are operational from Dec 29, 2013. |
Aug 14, 2013 | Area code 831-902 subscribers are operational from Aug 14, 2013. |
Aug 14, 2013 | Area code 831-901 subscribers are operational from Aug 14, 2013. |
Area Code | City | County | Population | Network Operator |
831-901-0 | Salinas | Monterey | 415,057 | Sprint Spectrum LP |
831-902-9 | Salinas | San Benito | 55,269 | Cellco Partnership dba Verizon Wireless - CA |
831-902-2 | Salinas | San Benito | 55,269 | MCI Worldcom Communications Inc - CA |
831-902-0 | Salinas | San Benito | 55,269 | Sprint Spectrum LP |
831-905 | Salinas | Monterey | 415,057 | New Cingular Wireless PCS LLC |
831-911 | 607,913 | Emergency Services | ||
831-912 | Salinas | Monterey | 415,057 | American Messaging (AM) Inc |
831-915 | Salinas | Monterey | 415,057 | New Cingular Wireless PCS LLC |
831-917-0 | Salinas | Monterey | 415,057 | New Cingular Wireless PCS LLC |
831-920-2 | Salinas | Monterey | 415,057 | Comcast Phone of California LLC - CA |
831-920-0 | Salinas | Monterey | 415,057 | Level 3 Communications LLC - CA |
831-920-8 | Salinas | Monterey | 415,057 | New Cingular Wireless PCS LLC |
831-921-0 | Salinas | San Benito | 55,269 | Pac-West Telecomm Inc - CA |
831-950 | 231,952 | FGB Access Code | ||
831-958 | 288,960 | Standard Plant Test Code | ||
831-959 | 231,961 | Standard Plant Test Code | ||
831-970 | Salinas | Monterey | 415,057 | Sprint Spectrum LP |
831-975-5 | Salinas | Monterey | 415,057 | Comcast Phone of California LLC - CA |
831-975-2 | Salinas | Monterey | 415,057 | Level 3 Communications LLC - CA |
831-975-0 | Salinas | Monterey | 415,057 | Pac-West Telecomm Inc - CA |
831-976 | 542,978 | Information Provider | ||
831-996-0 | Salinas | San Benito | 55,269 | O1 Communications Inc - CA |
831-998-4 | Salinas | Monterey | 415,057 | Cellco Partnership dba Verizon Wireless - CA |
831-998-8 | Salinas | Monterey | 415,057 | Comcast Phone of California LLC - CA |
831-998-0 | Salinas | Monterey | 415,057 | MCI Worldcom Communications Inc - CA |
831-998-6 | Salinas | Monterey | 415,057 | MetroPCS Inc |
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