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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OCN: 6349 UNITED STATES CELLULAR - OR

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
541-978 4 The Dalles OR   672   2025-02-27   
541-978 5 The Dalles OR   672   2025-02-27   
541-978 6 The Dalles OR   672   2025-02-27   
541-978 7 The Dalles OR   672   2025-02-27   
541-982 A Coos Bay OR EUGNOR53XGY  670      
541-982 0 Coos Bay OR EUGNOR53XGY  670      
541-993 A The Dalles OR LNBHWAAA0MD  672      

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Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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