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.

Switch: WACOTX01XCY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-451 A China Spring TX 624H ONVOY SPECTRUM, LLC 556      
254-461 A Waco TX 624H ONVOY SPECTRUM, LLC 556      
254-550 A Waco TX 624H ONVOY SPECTRUM, LLC 556      
254-936 A Moody TX 624H ONVOY SPECTRUM, LLC 556   2024-06-10   
254-937 A Teague TX 624H ONVOY SPECTRUM, LLC 556   2024-06-10   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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