Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 821 [Rate centres in NPA 821] [Dial plan for NPA 821]

NXX: 997

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
821-997 A Simpsonville SC   6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 430   2026-09-20   
821-997 0 Simpsonville SC   6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 430   2026-09-20   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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