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: 442 [Rate centres in NPA 442] [Dial plan for NPA 442]

NXX: 378

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-378 A Fallbrook CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732      
442-378 0 Fallbrook CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
442-378 1 Fallbrook CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
442-378 2 Fallbrook CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
442-378 3 Fallbrook CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
442-378 4 Fallbrook CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
442-378 7 Fallbrook CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732      
442-378 8 Fallbrook CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732      
442-378 9 Fallbrook CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.