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: MCCLALXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
251-577 A McCullough AL 4464 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-577 6 McCullough AL 4464 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-577 9 McCullough AL 4464 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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