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: 518 [Rate centres in NPA 518] [Dial plan for NPA 518]

NXX: 315

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
518-315 A Altamont NY ALBYNYPS6MD  939H COMMIO, LLC 134   2024-04-01   
518-315 0 Altamont NY   939H COMMIO, LLC 134   2024-04-01   
518-315 1 Altamont NY   515J IP HORIZON LLC 134   2024-08-19   
518-315 4 Altamont NY   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 134   2025-10-20   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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