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: COVLILCQXLX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-321 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-324 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-325 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-338 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-341 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-369 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-597 A Centralia IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-782 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      
618-784 A Collinsville IL 9748 AMERICAN MESSAGING SERVICES, LLC 520      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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