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: IWCYIA707MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-300 0 Waterloo IA 145J TERRA NOVA TELECOM INC. 635   2020-12-08   
319-303 3 Denver IA 145J TERRA NOVA TELECOM INC. 635   2022-01-05   
319-323 3 Oelwein IA 145J TERRA NOVA TELECOM INC. 635   2021-07-15   
319-666 5 Cedar Falls IA 145J TERRA NOVA TELECOM INC. 635   2021-07-15   
319-844 9 Monticello IA 145J TERRA NOVA TELECOM INC. 635   2020-11-16   
319-900 A Cedar Rapids IA 145J TERRA NOVA TELECOM INC. 635      
319-900 0 Cedar Rapids IA 145J TERRA NOVA TELECOM INC. 635   2019-04-22   
319-983 4 Parkersburg IA 145J TERRA NOVA TELECOM INC. 635   2020-11-16   
563-644 4 Decorah IA 145J TERRA NOVA TELECOM INC. 635   2021-08-03   
563-800 2 Calmar IA 145J TERRA NOVA TELECOM INC. 635   2020-11-16   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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