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
303-260 A Denver CO 9636 QWEST CORPORATION 656      
303-260 1 Denver CO 9636 QWEST CORPORATION 656      
303-260 4 Denver CO 9636 QWEST CORPORATION 656      
303-260 5 Denver CO 9636 QWEST CORPORATION 656      
303-260 6 Denver CO 9636 QWEST CORPORATION 656      
303-260 7 Denver CO 9636 QWEST CORPORATION 656      
303-335 2 Denver CO 9636 QWEST CORPORATION 656      
303-335 3 Denver CO 9636 QWEST CORPORATION 656      
303-352 A Denver CO 9636 QWEST CORPORATION 656      
303-389 A Denver CO 9636 QWEST CORPORATION 656      
303-389 0 Denver CO 9636 QWEST CORPORATION 656      
303-389 1 Denver CO 9636 QWEST CORPORATION 656      
303-389 2 Denver CO 9636 QWEST CORPORATION 656      
303-389 3 Denver CO 9636 QWEST CORPORATION 656      
303-389 4 Denver CO 9636 QWEST CORPORATION 656      
303-389 5 Denver CO 9636 QWEST CORPORATION 656      
303-389 7 Denver CO 9636 QWEST CORPORATION 656      
303-389 8 Denver CO 9636 QWEST CORPORATION 656      
303-405 A Denver CO 9636 QWEST CORPORATION 656      
303-436 A Denver CO 9636 QWEST CORPORATION 656      
303-446 A Denver CO 9636 QWEST CORPORATION 656      
303-454 A Denver CO 9636 QWEST CORPORATION 656      
303-534 A Denver CO 9636 QWEST CORPORATION 656      
303-556 A Denver CO 9636 QWEST CORPORATION 656      
303-571 A Denver CO 9636 QWEST CORPORATION 656      
303-572 A Denver CO 9636 QWEST CORPORATION 656      
303-573 A Denver CO 9636 QWEST CORPORATION 656      
303-575 A Denver CO 9636 QWEST CORPORATION 656      
303-585 A Denver CO 9636 QWEST CORPORATION 656      
303-585 4 Denver CO 9636 QWEST CORPORATION 656      
303-585 5 Denver CO 9636 QWEST CORPORATION 656      
303-585 6 Denver CO 9636 QWEST CORPORATION 656      
303-585 7 Denver CO 9636 QWEST CORPORATION 656      
303-585 8 Denver CO 9636 QWEST CORPORATION 656      
303-585 9 Denver CO 9636 QWEST CORPORATION 656      
303-592 A Denver CO 9636 QWEST CORPORATION 656      
303-595 A Denver CO 9636 QWEST CORPORATION 656      
303-602 A Denver CO 9636 QWEST CORPORATION 656      
303-603 A Denver CO 9636 QWEST CORPORATION 656      
303-605 A Denver CO 9636 QWEST CORPORATION 656      
303-606 A Denver CO 9636 QWEST CORPORATION 656      
303-607 A Denver CO 9636 QWEST CORPORATION 656      
303-607 0 Denver CO 9636 QWEST CORPORATION 656      
303-607 1 Denver CO 9636 QWEST CORPORATION 656      
303-607 2 Denver CO 9636 QWEST CORPORATION 656      
303-607 3 Denver CO 9636 QWEST CORPORATION 656      
303-607 6 Denver CO 9636 QWEST CORPORATION 656      
303-607 7 Denver CO 9636 QWEST CORPORATION 656      
303-607 9 Denver CO 9636 QWEST CORPORATION 656      
303-608 A Denver CO 9636 QWEST CORPORATION 656      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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