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: PLNSPAARGT0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
570-266 A Wilkes-Barre PA 7513 CTSI, INC. - PA 232      
570-266 4 Wilkes-Barre PA 7513 CTSI, INC. - PA 232   2009-10-22   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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