Local Calling Guide

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NPA: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-633 2 Concord CA   939H COMMIO, LLC 722   2021-10-14   
925-633 3 Concord CA   965H FRACTEL, LLC 722   2021-10-07   
925-633 4 Concord CA   649C ONVOY, LLC - CA 722   2021-10-08   
925-633 5 Concord CA   649C ONVOY, LLC - CA 722   2021-10-08   
925-633 6 Concord CA   649C ONVOY, LLC - CA 722   2021-10-08   
925-633 7 Concord CA   649C ONVOY, LLC - CA 722   2021-10-08   
925-633 8 Concord CA   939H COMMIO, LLC 722   2021-10-14   
925-633 9 Concord CA   939H COMMIO, LLC 722   2021-10-14   
925-634 A East Contra Costa CA BRWDCA12DS0  9740 PACIFIC BELL 722      
925-635 A Pittsburg CA OKLDCA03DS5  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-635 0 Pittsburg CA   649C ONVOY, LLC - CA 722   2016-04-23   
925-635 1 Pittsburg CA   515J IP HORIZON LLC 722   2003-10-13   
925-635 2 Pittsburg CA   515J IP HORIZON LLC 722   2003-10-13   
925-635 3 Pittsburg CA   318J COMCAST IP PHONE, LLC 722   2013-10-21   
925-635 4 Pittsburg CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-12-10   
925-635 5 Pittsburg CA   649C ONVOY, LLC - CA 722   2013-12-01   
925-635 6 Pittsburg CA   433E SONIC TELECOM, LLC - CA 722   2015-04-09   
925-635 7 Pittsburg CA   508J CENTURYLINK COMMUNICATIONS, LLC 722   2014-04-09   
925-635 8 Pittsburg CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-06-13   
925-635 9 Pittsburg CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-639 A Walnut Creek CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
925-640 A Dublin-San Ramon CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-642 A Antioch CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-643 A Pittsburg West CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-643 0 Pittsburg West CA   649C ONVOY, LLC - CA 722   2021-07-30   
925-643 1 Pittsburg West CA   649C ONVOY, LLC - CA 722   2021-10-09   
925-643 2 Pittsburg West CA   649C ONVOY, LLC - CA 722   2014-09-22   
925-643 3 Pittsburg West CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-18   
925-643 4 Pittsburg West CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-03-10   
925-643 5 Pittsburg West CA   516C AT&T CORP. 722   2007-02-19   
925-643 6 Pittsburg West CA   649C ONVOY, LLC - CA 722   2020-12-05   
925-643 7 Pittsburg West CA   508J CENTURYLINK COMMUNICATIONS, LLC 722   2015-02-02   
925-643 8 Pittsburg West CA   649C ONVOY, LLC - CA 722   2020-12-05   
925-643 9 Pittsburg West CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-644 A Concord CA SNJUCACL7MD  965H FRACTEL, LLC 722      
925-644 0 Concord CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2021-09-13   
925-644 1 Concord CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2021-09-13   
925-644 2 Concord CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2021-09-13   
925-644 3 Concord CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2021-09-13   
925-644 4 Concord CA   965H FRACTEL, LLC 722   2021-09-12   
925-644 5 Concord CA   649C ONVOY, LLC - CA 722   2021-09-13   
925-644 6 Concord CA   649C ONVOY, LLC - CA 722   2021-09-13   
925-644 7 Concord CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2021-09-13   
925-644 8 Concord CA   073H TELNYX LLC 722   2021-11-07   
925-644 9 Concord CA   553J WHITESKY COMMUNICATIONS, LLC 722   2021-09-16   
925-646 A Concord CA CNCRCA01RS1  9740 PACIFIC BELL 722      
925-648 A Danville CA DAVLCA13DS0  9740 PACIFIC BELL 722      
925-648 0 Danville CA   9740 PACIFIC BELL 722      
925-648 1 Danville CA   9740 PACIFIC BELL 722      
925-648 2 Danville CA   9740 PACIFIC BELL 722      
925-648 3 Danville CA   9740 PACIFIC BELL 722      
925-648 4 Danville CA   9740 PACIFIC BELL 722      
925-648 5 Danville CA   9740 PACIFIC BELL 722      
925-648 6 Danville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-01-03   
925-648 7 Danville CA   9740 PACIFIC BELL 722      
925-648 8 Danville CA   9740 PACIFIC BELL 722      
925-648 9 Danville CA   9740 PACIFIC BELL 722      
925-655 A Concord CA SNJUCACL7MD  965H FRACTEL, LLC 722      
925-655 0 Concord CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 1 Concord CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 2 Concord CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 3 Concord CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 4 Concord CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2019-05-30   
925-655 5 Concord CA   965H FRACTEL, LLC 722   2019-05-14   
925-655 6 Concord CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2019-05-27   
925-655 7 Concord CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2019-07-11   
925-655 8 Concord CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2019-08-12   
925-655 9 Concord CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2020-10-30   
925-658 A Walnut Creek CA OKLDCA03DS5  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-658 0 Walnut Creek CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-07-09   
925-658 1 Walnut Creek CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-658 2 Walnut Creek CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-05-18   
925-658 3 Walnut Creek CA   649C ONVOY, LLC - CA 722   2008-02-28   
925-658 4 Walnut Creek CA   6529 T-MOBILE USA, INC. 722   2025-04-02   
925-658 5 Walnut Creek CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-03-03   
925-658 6 Walnut Creek CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-658 7 Walnut Creek CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-658 8 Walnut Creek CA   5562 METROPCS, INC. 722   2008-03-31   
925-658 9 Walnut Creek CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-659 A Bishop Ranch CA OKLDCA03DS5  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-659 0 Bishop Ranch CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-659 1 Bishop Ranch CA   515J IP HORIZON LLC 722   2003-10-13   
925-659 2 Bishop Ranch CA   515J IP HORIZON LLC 722   2003-10-13   
925-659 3 Bishop Ranch CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2006-05-29   
925-659 4 Bishop Ranch CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2017-11-03   
925-659 5 Bishop Ranch CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2015-10-12   
925-659 7 Bishop Ranch CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2018-02-02   
925-659 8 Bishop Ranch CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   
925-659 9 Bishop Ranch CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2023-11-02   
925-660 A Pleasanton CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
925-660 0 Pleasanton CA   649C ONVOY, LLC - CA 722   2017-06-17   
925-660 1 Pleasanton CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
925-660 2 Pleasanton CA   6529 T-MOBILE USA, INC. 722   2018-11-15   
925-660 3 Pleasanton CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
925-660 4 Pleasanton CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2013-04-08   
925-660 5 Pleasanton CA   6529 T-MOBILE USA, INC. 722   2017-08-12   
925-660 6 Pleasanton CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2020-01-16   
925-660 7 Pleasanton CA   649C ONVOY, LLC - CA 722   2014-11-07   
925-660 8 Pleasanton CA   649C ONVOY, LLC - CA 722   2023-03-09   
925-660 9 Pleasanton CA   6529 T-MOBILE USA, INC. 722   2015-05-15   

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

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