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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-421 A Shell Rock IA   593K MCC TELEPHONY LLC 635      
319-421 1 Shell Rock IA MNTIIAAKDS0  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635      
319-421 2 Shell Rock IA IWCYIA7000Z  490J DISH WIRELESS, LLC 635      
319-421 4 Shell Rock IA CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635      
319-421 8 Shell Rock IA CDRRIADTFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 635      
319-421 9 Shell Rock IA   593K MCC TELEPHONY LLC 635      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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