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.

NPA: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-377 A Moraga CA MORGCA12DS0  9740 PACIFIC BELL 722      
925-377 0 Moraga CA MORGCA12DS0  9740 PACIFIC BELL 722      
925-377 1 Moraga CA MORGCA12DS0  9740 PACIFIC BELL 722      
925-377 2 Moraga CA SNJUCACL8MD  145J TERRA NOVA TELECOM INC. 722   2022-11-03   
925-377 3 Moraga CA MORGCA12DS0  9740 PACIFIC BELL 722      
925-377 4 Moraga CA MORGCA12DS0  9740 PACIFIC BELL 722      
925-377 5 Moraga CA MORGCA12DS0  9740 PACIFIC BELL 722      
925-377 6 Moraga CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-07-10   
925-377 7 Moraga CA   145J TERRA NOVA TELECOM INC. 722   2021-01-06   
925-377 8 Moraga CA   145J TERRA NOVA TELECOM INC. 722   2021-09-29   
925-377 9 Moraga CA SNJUCACL8MD  145J TERRA NOVA TELECOM INC. 722   2023-06-27   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.