Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 623 [Rate centres in NPA 623] [Dial plan for NPA 623]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-524 9 Phoenix AZ   9636 QWEST CORPORATION 666   2010-08-27   
623-526 A Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-526 0 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 1 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 2 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 3 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 4 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 5 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 6 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 7 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-526 9 Phoenix AZ   630E ONVOY, LLC - AZ 666   2019-05-05   
623-533 A Phoenix AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
623-533 0 Phoenix AZ   5562 METROPCS, INC. 666      
623-533 1 Phoenix AZ   5562 METROPCS, INC. 666      
623-533 2 Phoenix AZ   5562 METROPCS, INC. 666      
623-533 3 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-05-31   
623-533 4 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-05-31   
623-533 5 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-05-31   
623-533 6 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-05-31   
623-533 7 Phoenix AZ   5562 METROPCS, INC. 666      
623-533 8 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-533 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666      
623-535 A Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-536 A Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-537 A Phoenix AZ AGFIAZSRDS0  9636 QWEST CORPORATION 666      
623-537 0 Phoenix AZ   9636 QWEST CORPORATION 666      
623-537 1 Phoenix AZ   9636 QWEST CORPORATION 666      
623-537 2 Phoenix AZ   9636 QWEST CORPORATION 666      
623-537 3 Phoenix AZ   9636 QWEST CORPORATION 666      
623-537 4 Phoenix AZ   9636 QWEST CORPORATION 666      
623-537 5 Phoenix AZ   9636 QWEST CORPORATION 666   2005-01-25   
623-537 6 Phoenix AZ   9636 QWEST CORPORATION 666      
623-537 7 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2005-03-30   
623-537 8 Phoenix AZ   9636 QWEST CORPORATION 666      
623-537 9 Phoenix AZ   9636 QWEST CORPORATION 666      
623-544 A Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-546 A Phoenix AZ BRDSAZMADS0  9636 QWEST CORPORATION 666      
623-547 A Phoenix AZ LTPKAZMADS0  9636 QWEST CORPORATION 666      
623-547 0 Phoenix AZ   9636 QWEST CORPORATION 666      
623-547 1 Phoenix AZ   9636 QWEST CORPORATION 666      
623-547 2 Phoenix AZ   9636 QWEST CORPORATION 666      
623-547 3 Phoenix AZ   9636 QWEST CORPORATION 666      
623-547 4 Phoenix AZ   9636 QWEST CORPORATION 666      
623-547 5 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-12-08   
623-547 6 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-12-08   
623-547 7 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-12-08   
623-547 8 Phoenix AZ   9636 QWEST CORPORATION 666      
623-547 9 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2006-03-09   
623-551 A Phoenix AZ DRVYAZNODS0  9636 QWEST CORPORATION 666      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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