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]

NXX: 565

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-565 A Phoenix AZ PHNZAZ87PS0  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      
623-565 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-08-13   
623-565 1 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-08-13   
623-565 2 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-08-13   
623-565 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-08-13   
623-565 4 Phoenix AZ   5562 METROPCS, INC. 666   2007-09-27   
623-565 5 Phoenix AZ   7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666   2007-08-11   
623-565 6 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-09-06   
623-565 7 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2007-09-06   
623-565 8 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2008-07-02   
623-565 9 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2007-09-25   

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

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