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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
435-675 A Glen Canyon City UT 9636 QWEST CORPORATION 666      
928-608 A Page AZ 9636 QWEST CORPORATION 666      
928-608 0 Page AZ 9636 QWEST CORPORATION 666      
928-608 1 Page AZ 9636 QWEST CORPORATION 666      
928-608 2 Page AZ 9636 QWEST CORPORATION 666   2006-01-06   
928-608 4 Page AZ 9636 QWEST CORPORATION 666      
928-608 6 Page AZ 9636 QWEST CORPORATION 666      
928-608 7 Page AZ 9636 QWEST CORPORATION 666      
928-608 8 Page AZ 9636 QWEST CORPORATION 666   2006-01-06   
928-608 9 Page AZ 9636 QWEST CORPORATION 666      
928-645 A Page AZ 9636 QWEST CORPORATION 666      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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