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: CDRRIADTXJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
563-338 A Hopkinton IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635      
563-338 9 Hopkinton IA 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635   2022-01-17   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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