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: DNVRCODCDS0

Remotes:

Switch Switch name Switch type
DNVRCOTCRS1  DENVER TECH CENTER  5ER 

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-220 A Denver CO 9636 QWEST CORPORATION 656      
303-221 A Denver CO 9636 QWEST CORPORATION 656      
303-224 A Denver CO 9636 QWEST CORPORATION 656      
303-265 A Denver CO 9636 QWEST CORPORATION 656      
303-265 0 Denver CO 9636 QWEST CORPORATION 656      
303-265 7 Denver CO 9636 QWEST CORPORATION 656      
303-265 8 Denver CO 9636 QWEST CORPORATION 656      
303-265 9 Denver CO 9636 QWEST CORPORATION 656      
303-267 A Denver CO 9636 QWEST CORPORATION 656      
303-290 A Denver CO 9636 QWEST CORPORATION 656      
303-486 A Denver CO 9636 QWEST CORPORATION 656      
303-488 A Denver CO 9636 QWEST CORPORATION 656      
303-689 A Denver CO 9636 QWEST CORPORATION 656      
303-694 A Denver CO 9636 QWEST CORPORATION 656      
303-712 A Denver CO 9636 QWEST CORPORATION 656      
303-713 A Denver CO 9636 QWEST CORPORATION 656      
303-714 A Denver CO 9636 QWEST CORPORATION 656      
303-721 A Denver CO 9636 QWEST CORPORATION 656      
303-737 A Denver CO 9636 QWEST CORPORATION 656      
303-740 A Denver CO 9636 QWEST CORPORATION 656      
303-741 A Denver CO 9636 QWEST CORPORATION 656      
303-770 A Denver CO 9636 QWEST CORPORATION 656      
303-771 A Denver CO 9636 QWEST CORPORATION 656      
303-773 A Denver CO 9636 QWEST CORPORATION 656      
303-779 A Denver CO 9636 QWEST CORPORATION 656      
303-793 A Denver CO 9636 QWEST CORPORATION 656      
303-796 A Denver CO 9636 QWEST CORPORATION 656      
303-804 A Denver CO 9636 QWEST CORPORATION 656      
303-843 A Denver CO 9636 QWEST CORPORATION 656      
303-846 A Denver CO 9636 QWEST CORPORATION 656      
303-850 A Denver CO 9636 QWEST CORPORATION 656      
303-889 A Denver CO 9636 QWEST CORPORATION 656      
303-889 0 Denver CO 9636 QWEST CORPORATION 656      
303-889 1 Denver CO 9636 QWEST CORPORATION 656      
303-889 2 Denver CO 9636 QWEST CORPORATION 656      
303-889 3 Denver CO 9636 QWEST CORPORATION 656      
303-889 4 Denver CO 9636 QWEST CORPORATION 656      
303-889 5 Denver CO 9636 QWEST CORPORATION 656      
303-889 6 Denver CO 9636 QWEST CORPORATION 656      
303-889 7 Denver CO 9636 QWEST CORPORATION 656      
303-889 8 Denver CO 9636 QWEST CORPORATION 656      
303-930 A Denver CO 9636 QWEST CORPORATION 656      
303-967 A Denver CO 9636 QWEST CORPORATION 656      
720-200 A Denver CO 9636 QWEST CORPORATION 656      
720-444 A Denver CO 9636 QWEST CORPORATION 656      
720-482 A Denver CO 9636 QWEST CORPORATION 656      
720-488 A Denver CO 9636 QWEST CORPORATION 656      
720-489 A Denver CO 9636 QWEST CORPORATION 656      
720-493 A Denver CO 9636 QWEST CORPORATION 656      
720-528 A Denver CO 9636 QWEST CORPORATION 656      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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