Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-688 2 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 3 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 4 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 5 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 6 Concord CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
925-688 7 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 8 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 9 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-689 A Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-690 A Clayton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-690 0 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-29   
925-690 1 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-09-06   
925-690 2 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-18   
925-690 3 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-18   
925-690 4 Clayton CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2016-07-07   
925-690 5 Clayton CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-09-11   
925-690 6 Clayton CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-05-05   
925-690 7 Clayton CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-05-05   
925-690 8 Clayton CA OKLDCA03XKY  624H ONVOY SPECTRUM, LLC 722   2023-12-16   
925-690 9 Clayton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-691 A Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-692 A Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-693 A Clayton CA OKLDCA03DS5  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-693 0 Clayton CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
925-693 1 Clayton CA   515J IP HORIZON LLC 722   2016-09-15   
925-693 2 Clayton CA SNFCCA21XOZ  321J HD CARRIER LLC 722   2016-10-20   
925-693 4 Clayton CA SNFCCA21XOZ  321J HD CARRIER LLC 722   2016-10-20   
925-693 5 Clayton CA SNFCCA21XOZ  321J HD CARRIER LLC 722   2016-10-20   
925-693 6 Clayton CA SNFCCA21XOZ  321J HD CARRIER LLC 722   2016-10-20   
925-693 7 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-11-29   
925-693 8 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-11-29   
925-693 9 Clayton CA OKLDCA03DS5  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
925-694 A Pleasanton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-694 0 Pleasanton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-04-23   
925-694 1 Pleasanton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-04-23   
925-694 2 Pleasanton CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-09-22   
925-694 3 Pleasanton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-694 4 Pleasanton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-694 5 Pleasanton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-694 6 Pleasanton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-694 7 Pleasanton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-694 8 Pleasanton CA SNJUCACL2MD  197D VONAGE AMERICA LLC 722   2020-05-29   
925-694 9 Pleasanton CA FRMTCAJYDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-18   
925-695 A Concord CA OKLECAZV1MD  5562 METROPCS, INC. 722      
925-695 1 Concord CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-07-04   
925-695 2 Concord CA OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-05-04   
925-695 4 Concord CA OKLECAZV1MD  5562 METROPCS, INC. 722   2006-02-06   
925-695 5 Concord CA OKLECAZV1MD  5562 METROPCS, INC. 722   2005-01-21   
925-695 6 Concord CA OKLECAZV1MD  5562 METROPCS, INC. 722   2005-02-28   
925-695 7 Concord CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-04-01   
925-695 8 Concord CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2024-07-18   
925-695 9 Concord CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-07-04   
925-698 A Pittsburg CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-699 A Pleasanton CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-701 A Pleasanton CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-701 0 Pleasanton CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-701 1 Pleasanton CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2018-07-11   
925-701 2 Pleasanton CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-701 3 Pleasanton CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-701 4 Pleasanton CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-04-03   
925-701 5 Pleasanton CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-04-03   
925-701 6 Pleasanton CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-04-03   
925-701 7 Pleasanton CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2013-06-25   
925-701 8 Pleasanton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-25   
925-701 9 Pleasanton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-25   
925-705 A Walnut Creek CA OKLECAZV1MD  5562 METROPCS, INC. 722      
925-705 0 Walnut Creek CA OKLECAZV1MD  5562 METROPCS, INC. 722      
925-705 1 Walnut Creek CA OKLECAZV1MD  5562 METROPCS, INC. 722      
925-705 2 Walnut Creek CA OKLECAZV1MD  5562 METROPCS, INC. 722      
925-705 3 Walnut Creek CA OKLECAZV1MD  5562 METROPCS, INC. 722      
925-705 4 Walnut Creek CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-07-01   
925-705 5 Walnut Creek CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2008-07-04   
925-705 6 Walnut Creek CA OKLECAZV1MD  5562 METROPCS, INC. 722   2007-08-09   
925-705 7 Walnut Creek CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2008-07-18   
925-705 8 Walnut Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2008-09-01   
925-705 9 Walnut Creek CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2007-08-09   
925-706 A Antioch CA ANTCCA11DS0  9740 PACIFIC BELL 722      
925-708 A Walnut Creek CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-709 A Pittsburg West CA PSBGCA11DS0  9740 PACIFIC BELL 722      
925-709 0 Pittsburg West CA PSBGCA11DS0  9740 PACIFIC BELL 722      
925-709 1 Pittsburg West CA PSBGCA11DS0  9740 PACIFIC BELL 722      
925-709 2 Pittsburg West CA PSBGCA11DS0  9740 PACIFIC BELL 722      
925-709 3 Pittsburg West CA PSBGCA11DS0  9740 PACIFIC BELL 722      
925-709 4 Pittsburg West CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-01-14   
925-709 5 Pittsburg West CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2022-08-27   
925-709 6 Pittsburg West CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   
925-709 7 Pittsburg West CA SNJUCACL3MD  073H TELNYX LLC 722   2017-08-04   
925-709 8 Pittsburg West CA PSBGCA11DS0  9740 PACIFIC BELL 722      
925-709 9 Pittsburg West CA   145J TERRA NOVA TELECOM INC. 722   2021-01-08   
925-718 A Danville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-718 0 Danville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-25   
925-718 1 Danville CA   515J IP HORIZON LLC 722      
925-718 2 Danville CA   515J IP HORIZON LLC 722      
925-718 3 Danville CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   
925-718 4 Danville CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-04-03   
925-718 5 Danville CA SNFCCA01XGX  516C AT&T CORP. 722   2005-05-09   
925-718 6 Danville CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-29   
925-718 7 Danville CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-29   
925-718 8 Danville CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2014-07-18   
925-718 9 Danville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-25   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.