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: 575 [Rate centres in NPA 575] [Dial plan for NPA 575]

NXX: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-538 A Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 0 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 1 Silver City NM ALBQNMXMAMD  6573 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 664      
575-538 2 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 3 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 4 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 5 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 6 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 7 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 8 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      
575-538 9 Silver City NM SLCYNMMADS0  9636 QWEST CORPORATION 664      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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