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: 353

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-353 A Roma TX   4290 STPCS JOINT VENTURE, LLC 568      
956-353 0 Roma TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568      
956-353 1 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-353 2 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-353 3 Roma TX HRLNTXKX3MD  4290 STPCS JOINT VENTURE, LLC 568      
956-353 4 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-353 5 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-353 6 Roma TX   793K TWC IP ENABLED SERVICES, LLC 568      
956-353 7 Roma TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-353 8 Roma TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568      
956-353 9 Roma TX   4290 STPCS JOINT VENTURE, LLC 568      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.