Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-861 A Tucson AZ TCSNAZMAX3X  6664 SPRINT SPECTRUM L.P. 668      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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