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.


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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
901-561 A Memphis TN MMPHTNELDS0  468      
901-583 A Memphis TN MMPHTNMADS1  468      
903-210 A Longview TX LGVWTXPLDS4  554      
903-260 A Texarkana TX TXRKTXXADS0  554      
903-528 A Tyler TX TYLRTXLYDS0  554      
903-637 A Pittsburg TX PSBGTXUNRS0  554      
903-840 A Tyler TX TYLRTXLYDS0  554      
936-216 A Nacogdoches TX NCGDTXNCDS0  560      
972-305 A Grand Prairie TX DLLSTXMCDS0  552      
972-873 A Grand Prairie EMS TX DLLSTXMCDS0  552      
972-967 A Grand Prairie EMS TX DLLSTXMCDS0  552      

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Last updated: Tue, 04 May 2021 15:04:27 UTC

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