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: CDRRIAAB6MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-238 5 Oelwein IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-242 4 Cedar Falls IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-243 4 Cedar Falls IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-284 5 Oelwein IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-427 5 Waterloo IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-427 7 Waterloo IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-427 8 Waterloo IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-427 9 Waterloo IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-804 A Cedar Rapids IA 353E YMAX COMMUNICATIONS CORP. - IA 635      
319-804 0 Cedar Rapids IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-01-29   
319-804 1 Cedar Rapids IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-01-29   
319-804 2 Cedar Rapids IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-01-29   
319-804 3 Cedar Rapids IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-01-29   
319-804 4 Cedar Rapids IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-01-29   
319-855 4 Iowa City IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-855 5 Iowa City IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-930 3 Iowa City IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
319-930 4 Iowa City IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-13   
563-277 8 Decorah IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2011-01-21   
563-517 7 Decorah IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-25   
563-517 8 Decorah IA 353E YMAX COMMUNICATIONS CORP. - IA 635   2009-03-25   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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