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.

Switch: BKFDCAKTX5X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-248 8 Lebec CA 145J TERRA NOVA TELECOM INC. 734   2024-09-14   
661-276 0 Edwards CA 145J TERRA NOVA TELECOM INC. 734   2024-05-10   
661-278 2 Edwards CA 145J TERRA NOVA TELECOM INC. 734   2024-11-12   
661-407 A Bakersfield: Main DA CA 145J TERRA NOVA TELECOM INC. 734      
661-457 A Lost Hills CA 145J TERRA NOVA TELECOM INC. 734      
661-457 2 Lost Hills CA 145J TERRA NOVA TELECOM INC. 734   2024-05-10   
661-731 7 Earlimart CA 145J TERRA NOVA TELECOM INC. 734   2024-09-14   
661-777 4 Lebec CA 145J TERRA NOVA TELECOM INC. 734   2024-02-12   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.