Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 518

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-518 A Casa Grande AZ PHNXAZMACM6  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
520-518 0 Casa Grande AZ PHNXAZMACM6  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
520-518 1 Casa Grande AZ PHNXAZMACM6  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
520-518 2 Casa Grande AZ PHNXAZMACM6  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
520-518 3 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-04-29   
520-518 4 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-04-29   
520-518 5 Casa Grande AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666   2010-02-09   
520-518 6 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-04-29   
520-518 7 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-04-29   
520-518 8 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-04-29   
520-518 9 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2012-04-29   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.