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.

Switch: CLHNCOMARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
719-347 A Calhan CO 9636 QWEST CORPORATION 658      
719-347 0 Calhan CO 9636 QWEST CORPORATION 658      
719-347 2 Calhan CO 9636 QWEST CORPORATION 658      
719-347 3 Calhan CO 9636 QWEST CORPORATION 658      
719-347 7 Calhan CO 9636 QWEST CORPORATION 658      
719-347 9 Calhan CO 9636 QWEST CORPORATION 658      

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

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