Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 623 [Rate centres in NPA 623] [Dial plan for NPA 623]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-295 5 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-09-29   
623-295 6 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-09-29   
623-295 7 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-09-29   
623-295 8 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-09-29   
623-295 9 Phoenix AZ   579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-07-24   
623-296 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-296 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 1 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 7 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-296 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2015-05-28   
623-297 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-297 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 1 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 7 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-297 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-298 A Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 0 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 1 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 2 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 3 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 4 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 5 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 6 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 7 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-298 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2005-02-12   
623-298 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2006-01-22   
623-299 A Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666      
623-299 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2012-11-15   
623-299 1 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2012-11-15   
623-299 2 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2013-03-28   
623-299 3 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2012-06-17   
623-299 4 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2012-06-19   
623-299 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2012-11-15   
623-299 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2012-11-15   
623-299 7 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2013-03-28   
623-299 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2013-03-28   
623-299 9 Phoenix AZ   663G RE-INVENT TELECOM, LLC - AZ 666   2012-10-22   
623-300 A Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      

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

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