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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-255 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-255 0 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2007-05-24   
623-255 1 Phoenix AZ   630E ONVOY, LLC - AZ 666   2008-05-15   
623-255 2 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2007-05-24   
623-255 3 Phoenix AZ PHNZAZZJDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2008-05-01   
623-255 4 Phoenix AZ   630E ONVOY, LLC - AZ 666   2008-05-15   
623-255 5 Phoenix AZ   630E ONVOY, LLC - AZ 666   2008-05-15   
623-255 6 Phoenix AZ   630E ONVOY, LLC - AZ 666   2008-05-15   
623-255 7 Phoenix AZ   630E ONVOY, LLC - AZ 666   2008-05-15   
623-255 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2008-05-15   
623-255 9 Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2007-05-24   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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