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: DESMIADTTMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
641-638 3 Oskaloosa IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2011-08-19   
641-651 3 Pella IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2016-08-05   
641-747 4 Guthrie Center IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2018-04-02   
641-819 3 Fairfield IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2017-06-19   
641-832 4 Osage IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2017-04-17   
641-841 5 Newton IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2017-10-02   
641-854 5 Marshalltown IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2017-10-02   
641-931 3 Albia IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2017-06-19   
641-954 3 Ottumwa IA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2010-01-28   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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