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NPA: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-887 0 Monterey CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-887 1 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-12-02   
831-887 2 Monterey CA SLNSCA01XGX  9262 UTILITY TELECOM GROUP, LLC - CA 736      
831-887 3 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-12-02   
831-887 4 Monterey CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736   2026-06-06   
831-887 5 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-11-11   
831-887 6 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2023-10-29   
831-887 7 Monterey CA   145J TERRA NOVA TELECOM INC. 736   2019-05-21   
831-887 8 Monterey CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736   2017-09-01   
831-888 A Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-888 0 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-12   
831-888 1 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-26   
831-888 2 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-26   
831-888 3 Santa Cruz CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2016-02-15   
831-888 4 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-27   
831-888 5 Santa Cruz CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2016-02-15   
831-888 6 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-09-25   
831-888 7 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-02-26   
831-888 8 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-10   
831-888 9 Santa Cruz CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-10-18   
831-889 A Santa Cruz CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-889 0 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2019-08-05   
831-889 1 Santa Cruz CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2020-01-16   
831-889 2 Santa Cruz CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2020-04-03   
831-889 3 Santa Cruz CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2021-03-11   
831-889 4 Santa Cruz CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2020-04-02   
831-889 5 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-02-21   
831-889 6 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-02-21   
831-889 7 Santa Cruz CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2018-08-11   
831-889 8 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2018-09-30   
831-889 9 Santa Cruz CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2021-03-11   
831-899 A Monterey CA SESDCA11DS0  9740 PACIFIC BELL 736      
831-900 A Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-900 0 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-07-04   
831-900 1 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-08-07   
831-900 2 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-08-07   
831-900 3 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-08-07   
831-900 4 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-08-07   
831-900 5 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-08-07   
831-900 6 Santa Cruz CA   515J IP HORIZON LLC 722   2016-09-15   
831-900 7 Santa Cruz CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-09-23   
831-900 8 Santa Cruz CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-09-03   
831-900 9 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-07-04   
831-901 A Monterey CA MTRYCAPMBMD  700J WAVENATION, LLC 736      
831-901 0 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-901 1 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-901 2 Monterey CA MTRYCAPMBMD  700J WAVENATION, LLC 736   2025-10-05   
831-901 3 Monterey CA SLNSCA01XHY  394L COMCAST PHONE OF CALIFORNIA, LLC 736   2014-06-30   
831-901 4 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-901 5 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-901 6 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-901 7 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-901 8 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-901 9 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-902 A Hollister CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-902 0 Hollister CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-902 1 Hollister CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2021-05-15   
831-902 2 Hollister CA SLNSCA01XTX  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 736   2006-06-01   
831-902 3 Hollister CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2021-05-15   
831-902 4 Hollister CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736   2019-12-21   
831-902 5 Hollister CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-902 6 Hollister CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-902 7 Hollister CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-902 8 Hollister CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736   2007-11-16   
831-902 9 Hollister CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736   2007-09-08   
831-905 A Salinas CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-915 A Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 A Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 0 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 1 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 2 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 3 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 4 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 5 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 6 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 7 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2005-04-16   
831-917 8 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-917 9 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2003-09-21   
831-920 A Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-920 0 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2007-06-20   
831-920 1 Monterey CA SLNSCA01XHY  394L COMCAST PHONE OF CALIFORNIA, LLC 736   2007-01-09   
831-920 2 Monterey CA SLNSCA01XHY  394L COMCAST PHONE OF CALIFORNIA, LLC 736   2007-01-09   
831-920 3 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2010-02-12   
831-920 4 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2005-07-25   
831-920 5 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2013-11-04   
831-920 6 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2012-01-08   
831-920 7 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2006-08-16   
831-920 8 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2006-08-16   
831-920 9 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2015-06-12   
831-921 A Tres Pinos CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-921 0 Tres Pinos CA   145J TERRA NOVA TELECOM INC. 736   2024-12-31   
831-921 1 Tres Pinos CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736   2016-03-05   
831-921 2 Tres Pinos CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2019-07-28   
831-921 3 Tres Pinos CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2019-07-28   
831-931 A King City CA SLNSCA01XCY  624H ONVOY SPECTRUM, LLC 736   2024-02-09   
831-931 0 King City CA SLNSCA01XCY  624H ONVOY SPECTRUM, LLC 736   2024-02-09   
831-931 1 King City CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2024-03-02   
831-931 8 King City CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2024-04-05   
831-946 A Santa Cruz CA SNJUCACL7MD  965H FRACTEL, LLC 722      
831-946 0 Santa Cruz CA OKLDCAEB0MD  073H TELNYX LLC 722   2023-05-13   

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Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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