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: 844

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-844 A Sandy Valley CA LSVGNVXB00Z  622J SKYE TELECOM LLC DBA SKYETEL 721      
442-844 4 Sandy Valley CA LSVGNVXB00Z  622J SKYE TELECOM LLC DBA SKYETEL 721   2021-11-15   
442-844 8 Sandy Valley CA   145J TERRA NOVA TELECOM INC. 721   2025-05-16   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.