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: 936 [Rate centres in NPA 936] [Dial plan for NPA 936]

NXX: 590

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
936-590 A Center TX CNTRTXCNDS0  9533 SOUTHWESTERN BELL 560      
936-590 0 Center TX HSTZTXXZ3MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
936-590 1 Center TX HSTZTXXZ3MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
936-590 2 Center TX HSTZTXXZ3MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
936-590 3 Center TX CNTRTXCNDS0  9533 SOUTHWESTERN BELL 560      
936-590 4 Center TX CNTRTXCNDS0  9533 SOUTHWESTERN BELL 560      
936-590 5 Center TX HSTZTXXZ3MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
936-590 6 Center TX HSTZTXXZ3MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
936-590 7 Center TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
936-590 8 Center TX HSTZTXXZ3MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
936-590 9 Center TX CNTRTXCNDS0  9533 SOUTHWESTERN BELL 560      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.