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

NXX: 281

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-281 A Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 0 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 1 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 2 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 3 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 4 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 5 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 6 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      
520-281 7 Nogales AZ NGLSAZ03RS2  9636 QWEST CORPORATION 668      
520-281 8 Nogales AZ NGLSAZ03RS2  9636 QWEST CORPORATION 668      
520-281 9 Nogales AZ NGLSAZMWDS0  9636 QWEST CORPORATION 668      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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