Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Pittsburg West, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
925-504 5   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-07-27   
925-504 6   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2024-02-17   
925-504 7   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2023-08-24   
925-504 8   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2023-07-16   
925-504 9   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2023-01-30   
925-517 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-517 0   649C ONVOY, LLC - CA 722   2012-12-31   
925-517 1   515J IP HORIZON LLC 722      
925-517 2   515J IP HORIZON LLC 722      
925-517 3   981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-12-13   
925-517 4   624H ONVOY SPECTRUM, LLC 722   2021-12-10   
925-517 5   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2022-06-27   
925-517 6   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-09-11   
925-517 7   649C ONVOY, LLC - CA 722   2016-03-18   
925-517 8   649C ONVOY, LLC - CA 722   2016-03-18   
925-517 9   515J IP HORIZON LLC 722   2016-09-15   
925-643 A SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-643 0   649C ONVOY, LLC - CA 722   2021-07-30   
925-643 1   649C ONVOY, LLC - CA 722   2021-10-09   
925-643 2   649C ONVOY, LLC - CA 722   2014-09-22   
925-643 3   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-18   
925-643 4   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-03-10   
925-643 5   516C AT&T CORP. 722   2007-02-19   
925-643 6   649C ONVOY, LLC - CA 722   2020-12-05   
925-643 7   508J CENTURYLINK COMMUNICATIONS, LLC 722   2015-02-02   
925-643 8   649C ONVOY, LLC - CA 722   2020-12-05   
925-643 9   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-664 A OKLDCAAN5MD  7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 722      
925-664 0   649C ONVOY, LLC - CA 722      
925-664 1   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-08-18   
925-664 2   649C ONVOY, LLC - CA 722   2005-11-26   
925-664 3   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-08-18   
925-664 4   624H ONVOY SPECTRUM, LLC 722   2021-07-24   
925-664 5   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-04-19   
925-664 6   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-01-27   
925-664 7   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-17   
925-664 8   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-17   
925-664 9   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-07-21   
925-709 A PSBGCA11DS0  9740 PACIFIC BELL 722      
925-709 0   9740 PACIFIC BELL 722      
925-709 1   9740 PACIFIC BELL 722      
925-709 2   9740 PACIFIC BELL 722      
925-709 3   9740 PACIFIC BELL 722      
925-709 4   981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-01-14   
925-709 5   649C ONVOY, LLC - CA 722   2022-08-27   
925-709 6   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   
925-709 7   073H TELNYX LLC 722   2017-08-04   
925-709 8   9740 PACIFIC BELL 722      
925-709 9   145J TERRA NOVA TELECOM INC. 722   2021-01-08   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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