Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 591

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-591 A Washington IA CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
319-591 0 Washington IA CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2008-05-30   
319-591 1 Washington IA CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2009-08-19   
319-591 2 Washington IA DESMIAITGT5  444G AUREON COMMUNICATIONS, LLC 635   2015-12-19   
319-591 3 Washington IA CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2017-05-18   
319-591 4 Washington IA WUNNIA021MD  6529 T-MOBILE USA, INC. 635   2022-05-23   
319-591 5 Washington IA WUNNIA021MD  6529 T-MOBILE USA, INC. 635   2022-05-23   
319-591 6 Washington IA WUNNIA021MD  6529 T-MOBILE USA, INC. 635   2022-05-23   
319-591 7 Washington IA WUNNIA021MD  6529 T-MOBILE USA, INC. 635   2022-05-23   
319-591 8 Washington IA MNCHIAXO2MD  593K MCC TELEPHONY LLC 635   2010-04-15   
319-591 9 Washington IA   145J TERRA NOVA TELECOM INC. 635   2025-06-06   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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