Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CHESIAXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
507-561 A North Chester MN 1126 CENTURYTEL OF CHESTER, INC. DBA CENTURYLINK 635      
563-565 A Chester IA 1126 CENTURYTEL OF CHESTER, INC. DBA CENTURYLINK 635      

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

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