Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 774

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-774 A Los Altos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-774 0 Los Altos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-15   
650-774 1 Los Altos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-15   
650-774 2 Los Altos CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-04-27   
650-774 3 Los Altos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-08-27   
650-774 4 Los Altos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-08-27   
650-774 5 Los Altos CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-04-27   
650-774 6 Los Altos CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-04-27   
650-774 7 Los Altos CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-04-27   
650-774 8 Los Altos CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2024-08-18   
650-774 9 Los Altos CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-04-27   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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