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: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-221 A Benson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-221 0 Benson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-221 1 Benson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-221 2 Benson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2012-05-15   
520-221 3 Benson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-221 4 Benson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2010-06-12   
520-221 5 Benson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2010-08-16   
520-221 6 Benson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2011-08-05   
520-221 7 Benson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2010-09-12   
520-221 8 Benson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2012-08-26   
520-221 9 Benson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.