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.

Attalla, AL

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
256-305 A BRHMALMT92Z  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-305 0   792K CHARTER IP ENABLED SERVICES, LLC 476   2007-10-18   
256-305 1   604E ONVOY, LLC - AL 476   2016-03-04   
256-305 2   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 476   2004-11-11   
256-305 3   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-305 4   604E ONVOY, LLC - AL 476   2016-03-04   
256-305 5   318J COMCAST IP PHONE, LLC 476   2015-09-02   
256-305 6   604E ONVOY, LLC - AL 476   2017-01-09   
256-305 7   073H TELNYX LLC 476   2017-09-04   
256-305 8   145J TERRA NOVA TELECOM INC. 476   2022-11-03   
256-305 9   145J TERRA NOVA TELECOM INC. 476   2023-11-15   
256-344 A BRHMALHWX8X  8271 TELEPORT COMMUNICATIONS AMERICA, LLC - AL 476      
256-344 0   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 476   2008-02-27   
256-344 1   072F BANDWIDTH.COM CLEC, LLC - AL 476   2008-11-30   
256-344 2   318J COMCAST IP PHONE, LLC 476   2009-09-03   
256-344 3   072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-10-26   
256-344 4   072F BANDWIDTH.COM CLEC, LLC - AL 476   2010-09-04   
256-344 5   516C AT&T CORP. 476   2009-11-02   
256-344 6   072F BANDWIDTH.COM CLEC, LLC - AL 476   2016-07-16   
256-344 7   072F BANDWIDTH.COM CLEC, LLC - AL 476   2012-05-27   
256-344 8   072F BANDWIDTH.COM CLEC, LLC - AL 476   2014-05-22   
256-344 9   8271 TELEPORT COMMUNICATIONS AMERICA, LLC - AL 476      
256-538 A ATTLALNMRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 476      
256-570 A ATTLALNMRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 476      
256-570 0   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 476      
256-570 1   604E ONVOY, LLC - AL 476   2017-05-29   
256-570 2   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 476      
256-570 3   604E ONVOY, LLC - AL 476   2017-05-29   
256-570 4   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 476   2013-05-19   
256-570 5   072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-02-23   
256-570 6   604E ONVOY, LLC - AL 476   2017-07-07   
256-570 7   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 476   2019-04-19   
256-570 8   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 476   2015-07-16   
256-570 9   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 476   2017-05-08   
256-691 A BRHMALMTYRX  829J PAETEC ITEL, LLC 476      
256-691 0   829J PAETEC ITEL, LLC 476      
256-691 1   604E ONVOY, LLC - AL 476   2016-06-23   
256-691 2   604E ONVOY, LLC - AL 476   2016-06-23   
256-691 3   7469 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL 476   2011-03-20   
256-691 4   5562 METROPCS, INC. 476   2013-06-15   
256-691 5   5562 METROPCS, INC. 476   2014-11-06   
256-691 6   5562 METROPCS, INC. 476   2015-01-04   
256-691 7   508J CENTURYLINK COMMUNICATIONS, LLC 476   2014-03-27   
256-691 8   5562 METROPCS, INC. 476   2015-01-29   
256-691 9   5562 METROPCS, INC. 476   2015-01-04   
256-873 A BRHMALMT32Z  604E ONVOY, LLC - AL 476      
256-873 0   073H TELNYX LLC 476   2022-12-22   
256-873 1   5562 METROPCS, INC. 476   2023-03-05   
256-873 2   604E ONVOY, LLC - AL 476   2021-06-20   
256-873 3   624H ONVOY SPECTRUM, LLC 476   2023-06-23   

1 2 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.