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
925-676 A Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-677 A Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 0 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 1 Concord CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
925-677 2 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 3 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 4 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 5 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 6 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 7 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-677 8 Concord CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
925-677 9 Concord CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
925-678 A Danville CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-678 0 Danville CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-678 1 Danville CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-678 2 Danville CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-678 3 Danville CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-678 4 Danville CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-678 5 Danville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-678 6 Danville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-678 7 Danville CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722      
925-678 8 Danville CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-678 9 Danville CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-679 A East Contra Costa CA OKLYCA11DS0  9740 PACIFIC BELL 722      
925-679 0 East Contra Costa CA OKLYCA11DS0  9740 PACIFIC BELL 722      
925-679 1 East Contra Costa CA OKLYCA11DS0  9740 PACIFIC BELL 722      
925-679 2 East Contra Costa CA OKLYCA11DS0  9740 PACIFIC BELL 722      
925-679 3 East Contra Costa CA OKLYCA11DS0  9740 PACIFIC BELL 722      
925-679 4 East Contra Costa CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
925-679 5 East Contra Costa CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
925-679 6 East Contra Costa CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722      
925-679 7 East Contra Costa CA SNFCCA01XGX  516C AT&T CORP. 722      
925-679 8 East Contra Costa CA OKLYCA11DS0  9740 PACIFIC BELL 722      
925-679 9 East Contra Costa CA OKLYCA11DS0  9740 PACIFIC BELL 722      
925-680 A Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 A Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 0 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 1 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 2 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 3 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 4 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 5 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 6 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 7 Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-681 8 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-681 9 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-682 A Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-683 A Danville CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
925-684 A East Contra Costa CA BTISCA11RS0  9740 PACIFIC BELL 722      
925-684 0 East Contra Costa CA BTISCA11RS0  9740 PACIFIC BELL 722      
925-684 1 East Contra Costa CA BTISCA11RS0  9740 PACIFIC BELL 722      
925-684 2 East Contra Costa CA BTISCA11RS0  9740 PACIFIC BELL 722      
925-684 3 East Contra Costa CA BTISCA11RS0  9740 PACIFIC BELL 722      
925-684 4 East Contra Costa CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
925-684 5 East Contra Costa CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
925-684 6 East Contra Costa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-684 7 East Contra Costa CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
925-684 8 East Contra Costa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-684 9 East Contra Costa CA BTISCA11RS0  9740 PACIFIC BELL 722      
925-685 A Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-686 A Concord CA CNCRCA01DS1  9740 PACIFIC BELL 722      
925-687 A Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 A Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 0 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
925-688 1 Concord CA CNCRCA01DS0  9740 PACIFIC BELL 722      
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      
925-690 1 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-690 2 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-690 3 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-690 4 Clayton CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
925-690 5 Clayton CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
925-690 6 Clayton CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
925-690 7 Clayton CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
925-690 8 Clayton CA OKLDCA03XKY  624H ONVOY SPECTRUM, LLC 722      
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      
925-693 2 Clayton CA   321J HD CARRIER LLC 722      
925-693 4 Clayton CA   321J HD CARRIER LLC 722      
925-693 5 Clayton CA   321J HD CARRIER LLC 722      
925-693 6 Clayton CA   321J HD CARRIER LLC 722      
925-693 7 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-693 8 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
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      
925-694 1 Pleasanton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      

<< 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: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.