Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
563-308 A PSTNIAXO0MD  751F MCC TELEPHONY OF IOWA, LLC - IA 634      
563-308 1 PSTNIAXO0MD  751F MCC TELEPHONY OF IOWA, LLC - IA 634   2010-05-06   
563-308 2 DVNPIAEA9MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634   2018-07-31   
563-308 9 DVNPIADTUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 634   2021-02-26   
563-689 A PSTNIAXODS0  1276 PRESTON TEL. CO. 634      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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