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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Switch: STFRORXXRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
503-638 A Stafford-Sandy OR 4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-673 A Stafford-Sandy OR 4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-673 0 Stafford-Sandy OR 4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-673 4 Stafford-Sandy OR 4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-673 5 Stafford-Sandy OR 4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-673 7 Stafford-Sandy OR 4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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