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: 228

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-228 A Phoenix AZ PHNXAZMAX3X  7421 AT&T - LOCAL 666      
623-228 0 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 1 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 2 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 3 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 4 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 5 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 6 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 7 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 8 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   
623-228 9 Phoenix AZ   7421 AT&T - LOCAL 666   2015-08-24   

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

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