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.

Oakland: Main-Piedmont DA, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
510-922 8 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2006-12-05   
510-922 9 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2006-12-05   
510-923 A OKLDCA11DS0  9740 PACIFIC BELL 722      
510-928 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-929 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-929 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2018-05-22   
510-929 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2018-05-22   
510-929 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2019-06-17   
510-929 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-09-06   
510-929 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-09-06   
510-929 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-07-28   
510-929 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2020-08-13   
510-929 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2020-08-13   
510-929 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2019-08-09   
510-929 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-06-20   
510-947 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-947 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-03-12   
510-947 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-03-12   
510-947 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-03-12   
510-947 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-06-17   
510-947 4 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2021-05-31   
510-947 5 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2018-02-18   
510-947 6 SNJUCACL3MD  073H TELNYX LLC 722   2017-03-23   
510-947 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-01-14   
510-947 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-01-14   
510-947 9 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2018-01-05   
510-971 A SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
510-971 0 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2021-04-05   
510-971 1 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-02-28   
510-971 2 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-02-28   
510-971 3 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-02-28   
510-971 4 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-02-28   
510-971 5 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2021-03-03   
510-971 6 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2021-01-21   
510-971 7 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2021-01-21   
510-971 8 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2021-01-21   
510-971 9 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2021-01-21   
510-985 A OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 0 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 1 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 2 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 3 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-06-21   
510-985 5 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 6 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 7 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 8 OKLDCA11DS0  9740 PACIFIC BELL 722      
510-985 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-08   
510-986 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 0 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 1 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 2 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 3 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-06-21   
510-986 5 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 6 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 7 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 8 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-986 9 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 0 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 1 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 2 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 3 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 4 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 5 OKLDCA03DS2  9740 PACIFIC BELL 722   2014-03-25   
510-987 6 OKLECAZV1MD  5562 METROPCS, INC. 722   2008-08-31   
510-987 7 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-987 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-08   
510-987 9 OKLDCA03DS2  9740 PACIFIC BELL 722      
510-992 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-992 0 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2021-01-01   
510-992 1 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2021-01-01   
510-992 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-992 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-02-27   
510-992 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-08   
510-992 5 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2020-09-15   
510-992 6 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-09-12   
510-992 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-992 9 OKLECAZV1MD  5562 METROPCS, INC. 722   2009-03-13   
510-997 A SNFCCA21XUY  6906 AMERICAN MESSAGING SERVICES, LLC 722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.