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: FTWOTXARDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
817-206 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-375 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-417 A Arlington EMS TX 9533 SOUTHWESTERN BELL 552      
817-419 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-449 A Arlington EMS TX 9533 SOUTHWESTERN BELL 552      
817-465 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-466 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-467 A Arlington EMS TX 9533 SOUTHWESTERN BELL 552      
817-468 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-472 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-493 A Arlington EMS TX 9533 SOUTHWESTERN BELL 552      
817-557 A Arlington TX 9533 SOUTHWESTERN BELL 552      
817-784 A Arlington EMS TX 9533 SOUTHWESTERN BELL 552      

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

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