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.

Elk Grove, CA

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
279-254 5   6529 T-MOBILE USA, INC. 726   2024-09-15   
279-254 6   6529 T-MOBILE USA, INC. 726   2024-09-15   
279-254 7   6529 T-MOBILE USA, INC. 726   2025-10-19   
279-254 8   6529 T-MOBILE USA, INC. 726   2024-03-28   
279-254 9   6529 T-MOBILE USA, INC. 726   2024-03-28   
279-282 A SCRMCA0133Z  6010 NEW CINGULAR WIRELESS PCS, LLC 726   2025-02-01   
279-282 0   624H ONVOY SPECTRUM, LLC 726   2025-05-16   
279-282 1   624H ONVOY SPECTRUM, LLC 726   2025-05-16   
279-282 2   145J TERRA NOVA TELECOM INC. 726   2025-05-15   
279-282 3   624H ONVOY SPECTRUM, LLC 726   2025-05-16   
279-282 4   6529 T-MOBILE USA, INC. 726   2025-06-14   
279-282 5   6529 T-MOBILE USA, INC. 726   2025-06-14   
279-282 6   6529 T-MOBILE USA, INC. 726   2025-06-14   
279-282 7   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2025-02-01   
279-282 8   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2025-02-01   
279-282 9   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2025-02-01   
279-290 A   6529 T-MOBILE USA, INC. 726   2025-12-26   
279-290 5   6529 T-MOBILE USA, INC. 726   2025-12-26   
279-290 6   6529 T-MOBILE USA, INC. 726   2025-12-26   
279-290 7   6529 T-MOBILE USA, INC. 726   2025-12-26   
279-290 8   6529 T-MOBILE USA, INC. 726   2025-12-26   
279-290 9   6529 T-MOBILE USA, INC. 726   2025-12-26   
279-297 A EKGVCAXGX3X  649C ONVOY, LLC - CA 726      
279-297 0   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 726   2023-05-29   
279-297 1   6529 T-MOBILE USA, INC. 726   2023-10-30   
279-297 2   6529 T-MOBILE USA, INC. 726   2023-10-30   
279-297 3   6529 T-MOBILE USA, INC. 726   2023-10-30   
279-297 4   6529 T-MOBILE USA, INC. 726   2023-09-08   
279-297 5   6529 T-MOBILE USA, INC. 726   2023-09-08   
279-297 6   6529 T-MOBILE USA, INC. 726   2023-09-08   
279-297 7   6529 T-MOBILE USA, INC. 726   2023-06-30   
279-297 8   6529 T-MOBILE USA, INC. 726   2023-06-30   
279-297 9   649C ONVOY, LLC - CA 726   2023-05-25   
279-333 A EKGVCAXGX3X  649C ONVOY, LLC - CA 726   2024-01-21   
279-333 0   649C ONVOY, LLC - CA 726   2019-02-08   
279-333 1   649C ONVOY, LLC - CA 726   2019-02-08   
279-333 2   515J IP HORIZON LLC 726   2018-04-21   
279-333 3   649C ONVOY, LLC - CA 726   2018-03-16   
279-333 4   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2019-06-13   
279-333 5   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2019-05-22   
279-333 6   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2019-05-22   
279-333 7   318J COMCAST IP PHONE, LLC 726   2018-06-04   
279-333 8   649C ONVOY, LLC - CA 726   2018-09-29   
279-333 9   6529 T-MOBILE USA, INC. 726   2018-10-29   
279-800 A SCRMCA0104Z  965H FRACTEL, LLC 726      
279-800 0   965H FRACTEL, LLC 726   2019-03-23   
279-800 1   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2019-10-19   
279-800 2   649C ONVOY, LLC - CA 726   2019-09-08   
279-800 3   649C ONVOY, LLC - CA 726   2019-09-08   
279-800 4   649C ONVOY, LLC - CA 726   2019-09-08   

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.