Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 820 [Rate centres in NPA 820] [Dial plan for NPA 820]

NXX: 244

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-244 A Santa Maria CA   649C ONVOY, LLC - CA 740   2025-11-24   
820-244 0 Santa Maria CA   649C ONVOY, LLC - CA 740   2025-11-24   
820-244 1 Santa Maria CA   6010 NEW CINGULAR WIRELESS PCS, LLC 740   2025-11-25   
820-244 4 Santa Maria CA   145J TERRA NOVA TELECOM INC. 740   2025-11-25   
820-244 8 Santa Maria CA   649C ONVOY, LLC - CA 740   2026-02-23   
820-244 9 Santa Maria CA   649C ONVOY, LLC - CA 740   2026-01-11   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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