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: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-455 A Brownsville TX   5562 METROPCS, INC. 568      
956-455 0 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 1 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 2 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 3 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 4 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 5 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 6 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 7 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 8 Brownsville TX HRLNTXKX7MD  5562 METROPCS, INC. 568      
956-455 9 Brownsville TX   4290 STPCS JOINT VENTURE, LLC 568      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.