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
623-986 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-04-05   
623-986 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-04-05   
623-986 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-04-05   
623-986 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-03-16   
623-986 7 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-03-16   
623-986 8 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2007-02-28   
623-986 9 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2007-02-28   
623-999 A Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-999 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2014-02-22   
623-999 1 Phoenix AZ   630E ONVOY, LLC - AZ 666   2013-11-21   
623-999 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2014-02-22   
623-999 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2014-02-22   
623-999 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2014-02-22   
623-999 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2014-02-22   
623-999 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-12-20   
623-999 7 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-12-20   
623-999 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-12-20   
623-999 9 Phoenix AZ   630E ONVOY, LLC - AZ 666   2013-11-21   

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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