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.

Switch: HSTNTX01X7X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-746 A Cypress TX 516C AT&T CORP. 560      
281-771 A Spring TX 516C AT&T CORP. 560      
346-248 A Pinehurst TX 516C AT&T CORP. 560      
346-312 A Houston Suburban TX 516C AT&T CORP. 560      
346-352 A Houston TX 516C AT&T CORP. 560      
346-760 A Barker TX 516C AT&T CORP. 560      
346-843 A Richmond-Rosenberg TX 516C AT&T CORP. 560      
346-954 A Deer Park TX 516C AT&T CORP. 560      
346-978 A Langham Creek TX 516C AT&T CORP. 560      
713-505 A Houston TX 516C AT&T CORP. 560      
832-269 A Houston TX 516C AT&T CORP. 560      
832-653 A Cypress TX 516C AT&T CORP. 560      
832-666 A Bammel TX 516C AT&T CORP. 560      
832-672 A Houston Suburban TX 516C AT&T CORP. 560      
832-674 A Langham Creek TX 516C AT&T CORP. 560      
832-742 A Houston TX 516C AT&T CORP. 560      
832-940 A Houston TX 516C AT&T CORP. 560      
832-945 A Richmond-Rosenberg TX 516C AT&T CORP. 560      
832-965 A Bammel TX 516C AT&T CORP. 560      
832-986 A Houston TX 516C AT&T CORP. 560      
936-253 A Liberty TX 516C AT&T CORP. 560      
979-276 A Garwood TX 516C AT&T CORP. 560      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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