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: RCMDVAUIDMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
804-857 A Richmond VA 475J CALLWORKS CORPORATION 248      
804-857 1 Richmond VA 475J CALLWORKS CORPORATION 248   2023-12-01   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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