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: 217

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-217 A Atascadero CA SNLOCA01XMY  490J DISH WIRELESS, LLC 740      
820-217 0 Atascadero CA SNLOCA01XMY  490J DISH WIRELESS, LLC 740   2023-08-10   
820-217 1 Atascadero CA SNLOCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 740   2024-06-11   
820-217 2 Atascadero CA SNLOCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 740   2023-12-20   
820-217 3 Atascadero CA SNLOCA01XFX  649C ONVOY, LLC - CA 740   2023-11-03   
820-217 8 Atascadero CA SNLOCA01XYX  6529 T-MOBILE USA, INC. 740   2023-09-22   
820-217 9 Atascadero CA SNLOCA01XYX  6529 T-MOBILE USA, INC. 740   2023-09-22   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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