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: 429

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-429 A Yucca Valley CA PLSPCAXGX0Z  6529 T-MOBILE USA, INC. 973      
442-429 0 Yucca Valley CA PLSPCAXGXPY  649C ONVOY, LLC - CA 973   2024-03-07   
442-429 1 Yucca Valley CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 973   2025-12-10   
442-429 9 Yucca Valley CA PLSPCAXGX0Z  6529 T-MOBILE USA, INC. 973   2023-12-17   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.