Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 480 [Rate centres in NPA 480] [Dial plan for NPA 480]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
480-257 A Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
480-257 0 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-10-03   
480-257 1 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2011-08-26   
480-257 2 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2011-08-26   
480-257 3 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2011-08-26   
480-257 4 Phoenix AZ   630E ONVOY, LLC - AZ 666   2011-08-26   
480-257 5 Phoenix AZ   630E ONVOY, LLC - AZ 666   2011-08-26   
480-257 6 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-10-03   
480-257 7 Phoenix AZ   630E ONVOY, LLC - AZ 666   2011-08-26   
480-257 8 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-10-03   
480-257 9 Phoenix AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2011-08-25   

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

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