Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 563 [Rate centres in NPA 563] [Dial plan for NPA 563]

NXX: 542

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-542 A Dubuque IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-542 0 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 1 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 2 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 3 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 4 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 5 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 6 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 7 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 8 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      
563-542 9 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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