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: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-821 A Splendora TX   903C ONVOY, LLC - TX 560   2024-07-06   
346-821 0 Splendora TX   903C ONVOY, LLC - TX 560      
346-821 1 Splendora TX   490J DISH WIRELESS, LLC 560      
346-821 2 Splendora TX   490J DISH WIRELESS, LLC 560      
346-821 3 Splendora TX   490J DISH WIRELESS, LLC 560      
346-821 4 Splendora TX   490J DISH WIRELESS, LLC 560      
346-821 5 Splendora TX   490J DISH WIRELESS, LLC 560      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.