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]

NXX: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
623-300 A Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-300 0 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-300 1 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-300 2 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-300 3 Phoenix AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
623-300 4 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-300 5 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-300 6 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-300 7 Phoenix AZ PHNYAZUXDS0  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
623-300 8 Phoenix AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666      
623-300 9 Phoenix AZ PHNXAZMAX1Z  318J COMCAST IP PHONE, LLC 666      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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