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: TLSNAZMADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
623-248 A Phoenix AZ 9636 QWEST CORPORATION 666      
623-248 2 Phoenix AZ 9636 QWEST CORPORATION 666   2019-03-16   
623-285 A Phoenix AZ 9636 QWEST CORPORATION 666      
623-285 0 Phoenix AZ 9636 QWEST CORPORATION 666   2015-06-20   
623-285 1 Phoenix AZ 9636 QWEST CORPORATION 666   2015-06-20   
623-285 2 Phoenix AZ 9636 QWEST CORPORATION 666   2015-06-20   
623-313 9 Phoenix AZ 9636 QWEST CORPORATION 666   2006-08-11   
623-327 4 Phoenix AZ 9636 QWEST CORPORATION 666      
623-327 5 Phoenix AZ 9636 QWEST CORPORATION 666      
623-327 6 Phoenix AZ 9636 QWEST CORPORATION 666      
623-327 7 Phoenix AZ 9636 QWEST CORPORATION 666      
623-327 8 Phoenix AZ 9636 QWEST CORPORATION 666      
623-333 A Phoenix AZ 9636 QWEST CORPORATION 666      
623-388 5 Phoenix AZ 9636 QWEST CORPORATION 666      
623-463 5 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 A Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 0 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 1 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 3 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 4 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 5 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 6 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 7 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 8 Phoenix AZ 9636 QWEST CORPORATION 666      
623-478 9 Phoenix AZ 9636 QWEST CORPORATION 666      
623-643 9 Phoenix AZ 9636 QWEST CORPORATION 666      
623-742 4 Phoenix AZ 9636 QWEST CORPORATION 666      
623-742 9 Phoenix AZ 9636 QWEST CORPORATION 666      
623-907 A Phoenix AZ 9636 QWEST CORPORATION 666      
623-936 A Phoenix AZ 9636 QWEST CORPORATION 666      

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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