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: 664

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-664 A Tucson AZ TCSNAZSEDS0  9636 QWEST CORPORATION 668      
520-664 0 Tucson AZ TCSNAZSEDS0  9636 QWEST CORPORATION 668      
520-664 1 Tucson AZ TCSNAZSEDS0  9636 QWEST CORPORATION 668      
520-664 2 Tucson AZ TCSNAZSEDS0  9636 QWEST CORPORATION 668      
520-664 3 Tucson AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2005-09-17   
520-664 4 Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-05-21   
520-664 5 Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-05-21   
520-664 6 Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-05-21   
520-664 7 Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2006-11-15   
520-664 8 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2006-06-05   
520-664 9 Tucson AZ TCSNAZSEDS0  9636 QWEST CORPORATION 668      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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