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.

San Francisco: Montrose-Evergreen DA, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
415-574 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-06-02   
415-574 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-06-02   
415-574 5   5562 METROPCS, INC. 722   2005-07-28   
415-574 6   5562 METROPCS, INC. 722   2005-07-28   
415-574 7   5562 METROPCS, INC. 722   2005-07-28   
415-574 8   5562 METROPCS, INC. 722   2005-07-28   
415-574 9   5562 METROPCS, INC. 722   2005-07-28   
415-592 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-592 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-592 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2006-04-07   
415-592 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-592 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2006-04-07   
415-592 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-06-06   
415-592 5   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-05-28   
415-592 6   649C ONVOY, LLC - CA 722   2012-02-17   
415-592 7   649C ONVOY, LLC - CA 722   2009-12-20   
415-592 8   318J COMCAST IP PHONE, LLC 722   2010-08-19   
415-592 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-629 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-629 0   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-29   
415-629 1   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-29   
415-629 2   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-29   
415-629 3   649C ONVOY, LLC - CA 722   2023-09-10   
415-629 4   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-29   
415-629 5   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-10-03   
415-629 6   6529 T-MOBILE USA, INC. 722   2014-09-29   
415-629 7   6529 T-MOBILE USA, INC. 722   2014-10-15   
415-629 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-09-29   
415-629 9   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-09-29   
415-649 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
415-649 0   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-08-28   
415-649 1   649C ONVOY, LLC - CA 722   2011-11-03   
415-649 2   649C ONVOY, LLC - CA 722   2011-11-03   
415-649 3   649C ONVOY, LLC - CA 722   2011-11-03   
415-649 4   649C ONVOY, LLC - CA 722   2011-11-03   
415-649 5   649C ONVOY, LLC - CA 722   2011-11-03   
415-649 6   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-01-25   
415-649 7   9262 UTILITY TELECOM GROUP, LLC - CA 722   2006-06-21   
415-649 8   649C ONVOY, LLC - CA 722   2011-11-03   
415-649 9   649C ONVOY, LLC - CA 722   2011-11-03   
415-650 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
415-650 0   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2015-01-13   
415-650 1   649C ONVOY, LLC - CA 722   2015-04-07   
415-650 2   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2015-05-14   
415-650 3   516C AT&T CORP. 722   2015-06-10   
415-650 4   649C ONVOY, LLC - CA 722   2015-06-13   
415-650 5   649C ONVOY, LLC - CA 722   2015-06-13   
415-650 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-06-19   
415-650 7   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-06-19   
415-650 8   6529 T-MOBILE USA, INC. 722   2015-01-10   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.