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: CLPPVA94XMX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
571-571 A Leesburg VA 616J LEAP TELECOM, LLC 246   2025-03-02   
571-571 0 Leesburg VA 616J LEAP TELECOM, LLC 246   2025-03-02   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: Execulink Telecom

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