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: 821 [Rate centres in NPA 821] [Dial plan for NPA 821]

NXX: 214

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
821-214 A Seneca SC   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 430   2025-12-29   
821-214 0 Seneca SC   6398 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 430   2025-12-30   
821-214 9 Seneca SC   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 430   2025-12-29   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.