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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: DLWROHXAYMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
740-931 5 Cheshire Center OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2004-07-15   
740-931 6 Cheshire Center OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2004-07-15   
740-931 7 Cheshire Center OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2004-07-15   
740-931 8 Cheshire Center OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2004-07-15   
740-931 9 Cheshire Center OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2004-07-15   
740-932 3 Oak Hill OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2015-05-14   
740-943 8 Richwood OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2005-03-12   
740-988 5 Jackson OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2010-01-29   
740-990 A Delaware OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324      
740-990 8 Delaware OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2005-11-21   
740-990 9 Delaware OH 7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2004-04-23   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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