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.

Mill Valley, CA

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
415-322 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
415-322 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-08-29   
415-322 1   515J IP HORIZON LLC 722      
415-322 2   515J IP HORIZON LLC 722      
415-322 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-09-09   
415-322 4   515J IP HORIZON LLC 722      
415-322 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-03-14   
415-322 6 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2007-04-04   
415-322 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2009-12-19   
415-322 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
415-322 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
415-326 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
415-326 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-01-10   
415-326 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2007-08-02   
415-326 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2022-08-14   
415-326 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-02-17   
415-326 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-07   
415-326 5 SNFCCA01XGX  516C AT&T CORP. 722   2006-06-30   
415-326 6 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-07   
415-326 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-07   
415-326 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-08-28   
415-326 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-01-10   
415-360 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-360 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-07-31   
415-360 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-07-31   
415-360 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-08-02   
415-360 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-01-13   
415-360 4 CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-08-21   
415-360 5 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2007-04-15   
415-360 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-22   
415-360 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-22   
415-360 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-11-12   
415-360 9 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-380 A MLVYCA01DS0  9740 PACIFIC BELL 722      
415-381 A MLVYCA01DS0  9740 PACIFIC BELL 722      
415-383 A MLVYCA01DS0  9740 PACIFIC BELL 722      
415-384 A MLVYCA01DS0  9740 PACIFIC BELL 722      
415-384 0 MLVYCA01DS0  9740 PACIFIC BELL 722      
415-384 1 CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2016-02-06   
415-384 2 MLVYCA01DS0  9740 PACIFIC BELL 722      
415-384 3 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2000-10-04   
415-384 4 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2000-10-04   
415-384 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-07   
415-384 6 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-04-01   
415-384 7 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2006-06-21   
415-384 8 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2011-09-15   
415-384 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-23   
415-388 A MLVYCA01DS0  9740 PACIFIC BELL 722      
415-389 A MLVYCA01DS0  9740 PACIFIC BELL 722      
415-569 A SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
415-569 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-23   
415-569 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-29   
415-569 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-12-10   
415-569 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-12-10   
415-569 4 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2013-10-21   
415-569 5 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2012-12-22   
415-569 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-07-17   
415-569 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-23   
415-569 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-03-28   
415-569 9 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
415-634 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-634 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-634 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-634 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-634 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-634 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-12-09   
415-634 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-23   
415-634 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-634 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-11-13   
415-634 8 CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-08-22   
415-634 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-11-13   
415-843 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-843 0 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-843 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-20   
415-843 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-26   
415-843 3   145J TERRA NOVA TELECOM INC. 722   2021-06-09   
415-843 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-26   
415-843 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-04-14   
415-843 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-22   
415-843 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-22   
415-843 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-09-26   
415-843 9 OKLECAZV1MD  5562 METROPCS, INC. 722   2020-05-09   
415-877 A OKLECAZV1MD  5562 METROPCS, INC. 722      
415-877 0 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-877 1 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-01-11   
415-877 2 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2014-03-28   
415-877 3 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-31   
415-877 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2003-08-26   
415-877 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-09-26   
415-877 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-22   
415-877 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-04-30   
415-877 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-05-05   
415-877 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-11-12   
415-879 A OKLECAZV1MD  5562 METROPCS, INC. 722      
415-879 0 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-879 1 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-879 2 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-879 3 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-879 4 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-879 5 OKLECAZV1MD  5562 METROPCS, INC. 722   2009-10-20   

1 2 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.