Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-450 5 East Contra Costa CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-09-26   
925-450 8 East Contra Costa CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-06-06   
925-450 9 East Contra Costa CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-09-04   
925-451 A Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 0 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 1 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 2 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 3 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 4 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 5 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 6 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-451 7 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-08-11   
925-451 8 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-10-03   
925-451 9 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-460 7 Pleasanton CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2018-07-19   
925-464 3 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2013-01-20   
925-464 6 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2013-08-30   
925-470 0 Antioch CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-03-27   
925-470 6 Antioch CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-06-15   
925-470 7 Antioch CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-06-15   
925-471 2 Concord CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-24   
925-474 7 Pleasanton CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2013-01-20   
925-481 A Antioch CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-481 0 Antioch CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-07-31   
925-481 8 Antioch CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-06-13   
925-481 9 Antioch CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-05-08   
925-482 4 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-10-01   
925-482 5 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-10-01   
925-482 7 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2007-05-05   
925-486 1 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-14   
925-486 2 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-14   
925-486 3 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-14   
925-486 4 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-14   
925-486 5 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-14   
925-486 6 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-14   
925-486 7 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-14   
925-486 8 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-10-05   
925-486 9 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-10-05   
925-487 A Dublin-San Ramon CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-488 5 Walnut Creek CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-19   
925-490 3 Concord CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-07-31   
925-490 4 Concord CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-07-31   
925-490 5 Concord CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-08-28   
925-490 6 Concord CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-08-28   
925-490 8 Concord CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-08-28   
925-495 7 Livermore CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-04-20   
925-495 9 Livermore CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2016-10-03   
925-500 3 Martinez CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-10-04   
925-502 A Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-502 5 Danville CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2023-02-06   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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