Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-637 5 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2019-08-30   
661-637 6 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2019-08-30   
661-638 3 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2019-08-30   
661-638 9 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2021-06-12   
661-649 0 Arvin CA 6529 T-MOBILE USA, INC. 734   2024-04-27   
661-649 1 Arvin CA 6529 T-MOBILE USA, INC. 734   2024-04-27   
661-649 2 Arvin CA 6529 T-MOBILE USA, INC. 734   2024-04-27   
661-649 3 Arvin CA 6529 T-MOBILE USA, INC. 734   2024-09-15   
661-649 4 Arvin CA 6529 T-MOBILE USA, INC. 734   2024-07-21   
661-649 6 Arvin CA 6529 T-MOBILE USA, INC. 734   2024-07-21   
661-649 7 Arvin CA 6529 T-MOBILE USA, INC. 734   2024-07-21   
661-653 A Delano CA 6529 T-MOBILE USA, INC. 734      
661-653 9 Delano CA 6529 T-MOBILE USA, INC. 734   2022-06-24   
661-655 1 Arvin CA 6529 T-MOBILE USA, INC. 734   2020-09-21   
661-655 2 Arvin CA 6529 T-MOBILE USA, INC. 734   2020-09-21   
661-655 3 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-07-29   
661-655 4 Arvin CA 6529 T-MOBILE USA, INC. 734   2020-11-14   
661-655 6 Arvin CA 6529 T-MOBILE USA, INC. 734   2020-11-14   
661-655 7 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-05-12   
661-655 8 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-05-12   
661-655 9 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-05-12   
661-662 1 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2017-06-10   
661-662 2 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2017-06-15   
661-662 3 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2017-06-15   
661-662 4 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2017-06-15   
661-662 5 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2018-05-21   
661-662 7 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2017-08-12   
661-662 8 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2017-08-12   
661-662 9 Bakersfield: Main DA CA 5562 METROPCS, INC. 734   2017-08-12   
661-667 A McFarland CA 5562 METROPCS, INC. 734      
661-667 0 McFarland CA 5562 METROPCS, INC. 734      
661-667 1 McFarland CA 5562 METROPCS, INC. 734      
661-667 3 McFarland CA 5562 METROPCS, INC. 734      
661-667 6 McFarland CA 5562 METROPCS, INC. 734      
661-667 7 McFarland CA 5562 METROPCS, INC. 734      
661-672 A Arvin CA 6529 T-MOBILE USA, INC. 734   2025-05-18   
661-672 0 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-06-29   
661-672 1 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-06-29   
661-672 2 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-06-29   
661-672 3 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-06-29   
661-672 4 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-08-17   
661-672 5 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-08-17   
661-672 6 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-08-17   
661-672 7 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-11-20   
661-672 8 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-11-20   
661-672 9 Arvin CA 6529 T-MOBILE USA, INC. 734   2025-05-18   
661-679 9 Bakersfield: North DA CA 5562 METROPCS, INC. 734   2005-12-23   
661-685 A Arvin CA 6529 T-MOBILE USA, INC. 734   2026-01-30  2026-09-18 
661-688 3 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2020-09-10   
661-688 4 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2020-09-10   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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