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: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 208

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-208 A Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-208 0 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-208 1 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2005-12-23   
956-208 2 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-208 4 Roma TX HRLNTXHGBMD  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 568   2007-06-08   
956-208 6 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-208 7 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-208 8 Roma TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2007-03-04   
956-208 9 Roma TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2008-11-02   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.