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: BLDRCOMADS0

Remotes:

Switch Switch name Switch type
BLDRCOGBRS1  GUNBARREL  5ER 
NDLDCOMARS1  NEDERLAND  5ER 
WARDCOMARS1  WARD  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
303-245 A Denver CO 9636 QWEST CORPORATION 656      
303-247 A Denver CO 9636 QWEST CORPORATION 656      
303-401 A Denver CO 9636 QWEST CORPORATION 656      
303-402 A Denver CO 9636 QWEST CORPORATION 656      
303-413 A Denver CO 9636 QWEST CORPORATION 656      
303-415 A Denver CO 9636 QWEST CORPORATION 656      
303-417 A Denver CO 9636 QWEST CORPORATION 656      
303-440 A Denver CO 9636 QWEST CORPORATION 656      
303-441 A Denver CO 9636 QWEST CORPORATION 656      
303-442 A Denver CO 9636 QWEST CORPORATION 656      
303-443 A Denver CO 9636 QWEST CORPORATION 656      
303-444 A Denver CO 9636 QWEST CORPORATION 656      
303-447 A Denver CO 9636 QWEST CORPORATION 656      
303-448 A Denver CO 9636 QWEST CORPORATION 656      
303-449 A Denver CO 9636 QWEST CORPORATION 656      
303-473 A Denver CO 9636 QWEST CORPORATION 656      
303-492 A Denver CO 9636 QWEST CORPORATION 656      
303-541 A Denver CO 9636 QWEST CORPORATION 656      
303-544 A Denver CO 9636 QWEST CORPORATION 656      
303-545 A Denver CO 9636 QWEST CORPORATION 656      
303-546 A Denver CO 9636 QWEST CORPORATION 656      
303-735 A Denver CO 9636 QWEST CORPORATION 656      
303-786 A Denver CO 9636 QWEST CORPORATION 656      
303-924 A Denver CO 9636 QWEST CORPORATION 656      
303-938 A Denver CO 9636 QWEST CORPORATION 656      
303-939 A Denver CO 9636 QWEST CORPORATION 656      
303-966 A Denver CO 9636 QWEST CORPORATION 656      
303-998 A Denver CO 9636 QWEST CORPORATION 656      
720-406 A Denver CO 9636 QWEST CORPORATION 656      
720-561 A Denver CO 9636 QWEST CORPORATION 656      
720-561 2 Denver CO 9636 QWEST CORPORATION 656   2008-05-18   
720-561 3 Denver CO 9636 QWEST CORPORATION 656   2008-05-18   
720-561 4 Denver CO 9636 QWEST CORPORATION 656   2008-05-18   
720-561 5 Denver CO 9636 QWEST CORPORATION 656   2008-05-18   
720-561 6 Denver CO 9636 QWEST CORPORATION 656   2008-05-18   
720-561 7 Denver CO 9636 QWEST CORPORATION 656   2008-05-18   
720-561 8 Denver CO 9636 QWEST CORPORATION 656   2008-05-18   
720-562 A Denver CO 9636 QWEST CORPORATION 656      
720-563 A Denver CO 9636 QWEST CORPORATION 656      
720-563 0 Denver CO 9636 QWEST CORPORATION 656      
720-564 A Denver CO 9636 QWEST CORPORATION 656      
720-565 A Denver CO 9636 QWEST CORPORATION 656      
720-854 7 Denver CO 9636 QWEST CORPORATION 656      

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

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