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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
831-856 A Greenfield (Monterey) CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-856 0 Greenfield (Monterey) CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736   2014-03-28   
831-856 1 Greenfield (Monterey) CA   515J IP HORIZON LLC 736      
831-856 2 Greenfield (Monterey) CA   515J IP HORIZON LLC 736      
831-856 3 Greenfield (Monterey) CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736   2015-05-02   
831-856 4 Greenfield (Monterey) CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2017-03-26   
831-856 5 Greenfield (Monterey) CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2005-07-31   
831-856 6 Greenfield (Monterey) CA SLNSCA01X1Y  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 736   2014-11-06   
831-856 7 Greenfield (Monterey) CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2012-01-08   
831-856 8 Greenfield (Monterey) CA SLNSCA01X5Y  516C AT&T CORP. 736   2010-11-05   
831-856 9 Greenfield (Monterey) CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736   2014-08-17   
831-859 A Salinas CA MTRYCAPM9MD  321J HD CARRIER LLC 736   2024-08-23   
831-859 0 Salinas CA SLNTCAPS5MD  732J NUSO, LLC 736   2024-09-21   
831-859 1 Salinas CA SLNTCAPS5MD  732J NUSO, LLC 736   2024-09-21   
831-859 2 Salinas CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736   2024-11-08   
831-859 3 Salinas CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736   2024-11-27   
831-859 4 Salinas CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-09-15   
831-859 5 Salinas CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-09-15   
831-859 6 Salinas CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-08-29   
831-859 7 Salinas CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-08-29   
831-859 8 Salinas CA MTRYCAPM9MD  321J HD CARRIER LLC 736   2024-08-23   
831-859 9 Salinas CA MTRYCAPM9MD  321J HD CARRIER LLC 736   2024-08-23   
831-867 A Monterey CA MTRYCAPM1MD  939H COMMIO, LLC 736      
831-867 0 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2023-07-24   
831-867 1 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2023-10-29   
831-867 2 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2023-10-29   
831-867 5 Monterey CA MTRYCAPM1MD  939H COMMIO, LLC 736   2017-05-15   
831-867 6 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2019-03-21   
831-867 7 Monterey CA MTRYCAPM7MD  516J TON80 COMMUNICATIONS, LLC 736   2022-03-17   
831-867 8 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2019-03-21   
831-867 9 Monterey CA SLNSCA01XCY  624H ONVOY SPECTRUM, LLC 736   2024-11-01   
831-869 A Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-869 0 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2003-11-03   
831-869 1 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736      
831-869 2 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2007-03-04   
831-869 3 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2008-01-12   
831-869 4 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2023-09-11   
831-869 5 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2006-06-15   
831-869 6 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2004-05-09   
831-869 7 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2012-04-18   
831-869 8 Monterey CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2003-04-29   
831-869 9 Monterey CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736      
831-877 A Carmel CA MTRYCAPM6MD  965H FRACTEL, LLC 736      
831-877 0 Carmel CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736   2020-08-10   
831-877 1 Carmel CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2019-07-26   
831-877 2 Carmel CA SLNSCA01XTY  792K CHARTER IP ENABLED SERVICES, LLC 736   2020-10-05   
831-877 3 Carmel CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2020-02-12   
831-877 4 Carmel CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2020-02-12   
831-877 5 Carmel CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2020-02-12   
831-877 6 Carmel CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2021-03-05   
831-877 7 Carmel CA MTRYCAPM6MD  965H FRACTEL, LLC 736   2019-05-14   
831-877 8 Carmel CA MTRYCAPM6MD  965H FRACTEL, LLC 736   2019-05-14   
831-877 9 Carmel CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2020-01-20   
831-880 A Monterey CA SNJYCAHMDS1  193E 8X8, INC. 736   2026-07-13   
831-880 0 Monterey CA   649C ONVOY, LLC - CA 736   2026-08-21   
831-880 1 Monterey CA SNJYCAHMDS1  193E 8X8, INC. 736   2026-07-13   
831-880 8 Monterey CA   981E BANDWIDTH.COM CLEC, LLC - CA 736   2026-09-25   
831-880 9 Monterey CA   649C ONVOY, LLC - CA 736   2026-08-30   
831-881 A Monterey CA SLNSCA01XUY  252F WIDE VOICE, LLC - CA 736   2025-12-26   
831-881 0 Monterey CA   649C ONVOY, LLC - CA 736   2026-08-21   
831-881 1 Monterey CA SLNSCA01XUY  252F WIDE VOICE, LLC - CA 736   2025-12-26   
831-881 2 Monterey CA SLNSCA01XUY  252F WIDE VOICE, LLC - CA 736   2025-12-26   
831-881 6 Monterey CA MTRYCAPM8MD  321J HD CARRIER LLC 736   2026-06-19   
831-881 7 Monterey CA MTRYCAPM8MD  321J HD CARRIER LLC 736   2026-06-19   
831-881 8 Monterey CA MTRYCAPM8MD  321J HD CARRIER LLC 736   2026-06-19   
831-881 9 Monterey CA   649C ONVOY, LLC - CA 736   2026-08-21   
831-883 A Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 0 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 1 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 2 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 3 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 4 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 5 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 6 Monterey CA   145J TERRA NOVA TELECOM INC. 736   2022-11-03   
831-883 7 Monterey CA SLNSCA01XCY  624H ONVOY SPECTRUM, LLC 736   2024-05-22   
831-883 8 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-883 9 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-884 A Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-884 0 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-884 1 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-884 2 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2021-03-31   
831-884 3 Monterey CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736   2014-02-04   
831-884 4 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2021-03-31   
831-884 5 Monterey CA SLNSCA01XHY  394L COMCAST PHONE OF CALIFORNIA, LLC 736   2013-01-18   
831-884 6 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2014-08-11   
831-884 7 Monterey CA SLNSCA01XCY  624H ONVOY SPECTRUM, LLC 736   2024-05-22   
831-884 8 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2015-10-09   
831-884 9 Monterey CA MARNCA11DS0  9740 PACIFIC BELL 736      
831-886 A Monterey CA SLNTCAPS4MD  732J NUSO, LLC 736      
831-886 0 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-886 1 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-886 2 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-886 3 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-886 4 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-886 5 Monterey CA SLNTCAPS4MD  732J NUSO, LLC 736   2023-02-19   
831-886 6 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-12-02   
831-886 7 Monterey CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-886 8 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-12-02   
831-886 9 Monterey CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736   2024-12-02   
831-887 A Monterey CA MTRYCAPM5MD  145J TERRA NOVA TELECOM INC. 736      

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

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