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: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-837 A Fredericksburg IA IWCYIA70AMD  516J TON80 COMMUNICATIONS, LLC 635      
563-837 0 Fredericksburg IA CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635   2024-08-15   
563-837 2 Fredericksburg IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2022-04-17   
563-837 4 Fredericksburg IA IWCYIA70AMD  516J TON80 COMMUNICATIONS, LLC 635   2022-04-16   
563-837 7 Fredericksburg IA   444G AUREON COMMUNICATIONS, LLC 635   2025-10-06   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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