Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 563 [Rate centres in NPA 563] [Dial plan for NPA 563]

NXX: 778

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-778 A St Lucas IA STLCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
563-778 0 St Lucas IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635   2018-07-23   
563-778 1 St Lucas IA   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
563-778 2 St Lucas IA   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 635      
563-778 3 St Lucas IA   429J HAWKEYE INTERCONNECT COMPANY - IA 635   2020-08-31   
563-778 5 St Lucas IA   221F ONVOY, LLC - IA 635   2021-05-07   
563-778 6 St Lucas IA   516J TON80 COMMUNICATIONS, LLC 635   2022-03-02   
563-778 7 St Lucas IA   508J CENTURYLINK COMMUNICATIONS, LLC 635   2017-06-15   
563-778 8 St Lucas IA   221F ONVOY, LLC - IA 635   2021-10-29   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.