Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: GRMDIAXORS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
563-847 A Grand Mound IA 1191 GRAND MOUND COOP. TEL. ASSN. 634      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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