Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: TCSNAZ64WMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
520-849 A Tucson AZ 018J AIRUS, INC. - AZ 668      
520-849 1 Tucson AZ 018J AIRUS, INC. - AZ 668   2017-08-06   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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