Local Calling Guide

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East Contra Costa, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
925-880 7 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-11-18   
925-880 8 SNJUCACL7MD  965H FRACTEL, LLC 722   2021-09-12   
925-880 9 SNJUCACL7MD  965H FRACTEL, LLC 722   2021-09-12   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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