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.
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Switch: PRTNTXRERS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-734 A Princeton EMS TX 9533 SOUTHWESTERN BELL 552      
972-734 2 Princeton EMS TX 9533 SOUTHWESTERN BELL 552      
972-734 6 Princeton EMS TX 9533 SOUTHWESTERN BELL 552      
972-736 A Princeton TX 9533 SOUTHWESTERN BELL 552      
972-736 1 Princeton TX 9533 SOUTHWESTERN BELL 552      
972-736 2 Princeton TX 9533 SOUTHWESTERN BELL 552      
972-736 3 Princeton TX 9533 SOUTHWESTERN BELL 552      
972-736 6 Princeton TX 9533 SOUTHWESTERN BELL 552      

Last updated: Fri, 13 May 2022 22:16:13 UTC

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