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: 501 [Rate centres in NPA 501] [Dial plan for NPA 501]

Region: AR

OCN: 349E YMAX COMMUNICATIONS CORP. - AR

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date

Last updated: Sun, 17 May 2026 03:26:51 UTC

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