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
623-352 7 Phoenix AZ   630E ONVOY, LLC - AZ 666   2022-11-03   
623-352 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2022-11-03   
623-352 9 Phoenix AZ   630E ONVOY, LLC - AZ 666   2022-11-03   
623-356 A Phoenix AZ PHNXAZ19AMD  965H FRACTEL, LLC 666      
623-356 0 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-11-27   
623-356 1 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-11-27   
623-356 2 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-11-27   
623-356 3 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-11-27   
623-356 4 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-11-27   
623-356 5 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-11-27   
623-356 6 Phoenix AZ   7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666   2020-11-27   
623-356 7 Phoenix AZ   965H FRACTEL, LLC 666   2020-11-26   
623-356 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-11-27   
623-356 9 Phoenix AZ   965H FRACTEL, LLC 666   2020-11-26   
623-362 A Phoenix AZ AGFIAZSRDS0  9636 QWEST CORPORATION 666      
623-363 A Phoenix AZ PHNXAZMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 666      
623-374 A Phoenix AZ BLCNAZMARS1  9636 QWEST CORPORATION 666      
623-374 0 Phoenix AZ   9636 QWEST CORPORATION 666      
623-374 1 Phoenix AZ   5562 METROPCS, INC. 666   2006-02-10   
623-374 2 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-03-17   
623-374 3 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-03-17   
623-374 4 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-03-17   
623-374 5 Phoenix AZ   9636 QWEST CORPORATION 666      
623-374 6 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-07-13   
623-374 7 Phoenix AZ   318J COMCAST IP PHONE, LLC 666   2004-07-13   
623-374 8 Phoenix AZ   9636 QWEST CORPORATION 666      
623-374 9 Phoenix AZ   9636 QWEST CORPORATION 666      
623-376 A Phoenix AZ AGFIAZSRDS0  9636 QWEST CORPORATION 666      
623-377 A Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 0 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 1 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 2 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 3 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 4 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2010-04-25   
623-377 5 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 6 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 7 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2010-04-25   
623-377 8 Phoenix AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-377 9 Phoenix AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2010-04-25   
623-383 A Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-383 0 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2014-02-22   
623-383 1 Phoenix AZ   5562 METROPCS, INC. 666   2013-12-09   
623-383 2 Phoenix AZ   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 666   2013-05-03   
623-383 3 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-06-13   
623-383 4 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-06-13   
623-383 5 Phoenix AZ   6529 T-MOBILE USA, INC. 666   2013-06-13   
623-383 6 Phoenix AZ   630E ONVOY, LLC - AZ 666   2012-11-29   
623-383 7 Phoenix AZ   630E ONVOY, LLC - AZ 666   2012-11-29   
623-383 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2012-11-29   
623-383 9 Phoenix AZ   630E ONVOY, LLC - AZ 666   2012-11-29   

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

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