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: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 330

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-330 A Rancho Penasquitos CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732      
858-330 0 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 1 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 2 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 3 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 4 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 5 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 6 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 7 Rancho Penasquitos CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-330 8 Rancho Penasquitos CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732      
858-330 9 Rancho Penasquitos CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.