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: ENWDCOHJCM1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-212 A Denver CO 6613 SELECTPATH OF COLORADO INC 656      
303-310 A Denver CO 6613 SELECTPATH OF COLORADO INC 656      
303-392 A Denver CO 6613 SELECTPATH OF COLORADO INC 656      
303-767 A Denver CO 6613 SELECTPATH OF COLORADO INC 656      
970-202 A Berthoud CO 6613 SELECTPATH OF COLORADO INC 656      
970-621 A Berthoud CO 6613 SELECTPATH OF COLORADO INC 656      
970-681 A Greeley CO 6613 SELECTPATH OF COLORADO INC 656      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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