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: MNFDOHXAGMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
937-639 3 Anna OH 7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 923   2014-04-15   
937-810 A Russells Point OH 7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 923      
937-810 9 Russells Point OH 7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 923      
937-821 3 Fort Loramie OH 7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 923   2010-09-01   
937-887 A West Liberty OH 7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 923      
937-887 9 West Liberty OH 7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 923   2005-04-17   
937-893 4 Marysville OH 7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 923   2019-08-22   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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