Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Marshall, CA

1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
840-214 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
840-214 0 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-10-15   
840-214 1 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-10-16   
840-214 2 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-11-05   
840-214 3 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-11-05   
840-214 4 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-11-05   
840-214 5 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-11-05   
840-214 6 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2023-12-16   
840-214 7 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2023-12-16   
840-214 8 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-10-16   
840-214 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2022-10-14   
840-249 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2024-01-28   
840-249 0 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2024-02-22   
840-249 1 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2024-02-22   
840-249 2 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2024-02-22   
840-249 3 BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2024-06-04   
840-249 4 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-12-08   
840-249 5 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-10-14   
840-249 6 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-04-14   
840-249 7 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-09-09   
840-249 8 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2024-02-22   
840-249 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2024-01-28   
840-268 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-03   
840-268 0   624H ONVOY SPECTRUM, LLC 730   2025-02-02   
840-268 1   490J BOOST SUBSCRIBERCO L.L.C. 730   2025-02-22   
840-268 2   516C AT&T CORP. 730   2026-01-06   
840-268 3   649C ONVOY, LLC - CA 730   2026-01-26   
840-268 4   490J BOOST SUBSCRIBERCO L.L.C. 730   2025-07-21   
840-268 6   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2025-02-23   
840-268 7   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-09-05   
840-268 8   649C ONVOY, LLC - CA 730   2025-09-27   
840-268 9 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-03   
840-287 A   649C ONVOY, LLC - CA 730   2026-02-02   
840-287 0   649C ONVOY, LLC - CA 730   2026-02-02   
840-287 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2026-02-20   
840-877 A LSANCAJWIMD  965H FRACTEL, LLC 730      
840-877 1 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2021-12-21   
840-877 2 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2021-12-21   
840-877 3 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2021-12-21   
840-877 4 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2021-12-21   
840-877 5 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2022-06-27   
840-877 6 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2022-08-28   
840-877 7 LSANCAJWIMD  965H FRACTEL, LLC 730   2021-09-13   
840-877 8 LSANCA543MD  073H TELNYX LLC 730   2022-06-16   
840-877 9 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2021-12-19   
909-352 A LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
909-352 0 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-03-31   
909-352 1 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2013-04-02   
909-352 2 ONTRCAXPXBY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   
909-352 3 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2015-01-28   

1 2 3 4 5 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.