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: DLLSTXJFDMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-955 4 Grand Prairie EMS TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 5 Grand Prairie EMS TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 6 Grand Prairie EMS TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 7 Grand Prairie EMS TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-955 8 Grand Prairie EMS TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2005-05-25   
972-992 4 Grand Prairie TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2024-10-02   
972-998 A Grand Prairie EMS TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552      

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Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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