Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 279 [Rate centres in NPA 279] [Dial plan for NPA 279]

NXX: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
279-284 A Sacramento: North DA CA   649C ONVOY, LLC - CA 726   2025-04-05   
279-284 0 Sacramento: North DA CA   649C ONVOY, LLC - CA 726   2025-04-05   
279-284 1 Sacramento: North DA CA   649C ONVOY, LLC - CA 726   2025-05-10   
279-284 5 Sacramento: North DA CA   732J NUSO, LLC 726   2025-08-30   
279-284 6 Sacramento: North DA CA   732J NUSO, LLC 726   2025-08-30   
279-284 7 Sacramento: North DA CA   732J NUSO, LLC 726   2025-08-30   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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