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: HSTNTXBRDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-398 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-492 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-578 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-579 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-599 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-616 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-646 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-647 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-675 A Barker TX 9533 SOUTHWESTERN BELL 560      
281-829 A Barker TX 9533 SOUTHWESTERN BELL 560      
832-227 A Barker TX 9533 SOUTHWESTERN BELL 560      
832-587 A Barker TX 9533 SOUTHWESTERN BELL 560      
832-809 A Barker TX 9533 SOUTHWESTERN BELL 560      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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