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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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
276-307 A Laurel Fork VA 506J TWILIO INTERNATIONAL, INC. 956   2025-01-06   
276-307 2 Laurel Fork VA 506J TWILIO INTERNATIONAL, INC. 956   2025-01-07   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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