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: WACOTX01XMY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-480 A Waco TX 506J TWILIO INTERNATIONAL, INC. 556      
254-480 8 Waco TX 506J TWILIO INTERNATIONAL, INC. 556   2022-01-29   

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

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