Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Massena, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-590 A OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      
712-590 0 OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644   2010-09-05   
712-590 7 OMAHNENWXMX  6529 T-MOBILE USA, INC. 644   2011-01-17   
712-590 9 OMAHNENWGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2022-05-26   
712-779 A MSSNIAXODS0  1239 MASSENA TEL. CO. 644      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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