Local Calling Guide

Area code/prefix search

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Arroyo Grande, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
820-346 7 SNLOCA01XFX  649C ONVOY, LLC - CA 740   2021-08-13   
820-346 8 SNLOCA01XYX  6529 T-MOBILE USA, INC. 740   2021-02-27   
820-346 9 SNLOCA01XYX  6529 T-MOBILE USA, INC. 740   2021-02-27   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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