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: DNVRCOMA40Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
720-760 A Denver CO 506J TWILIO INTERNATIONAL, INC. 656      
720-760 7 Denver CO 506J TWILIO INTERNATIONAL, INC. 656      
970-747 2 Fort Morgan CO 506J TWILIO INTERNATIONAL, INC. 656      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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