Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: GRFNINXADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
812-851 A Griffin IN 0818 SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 330      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

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