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: HRLNTXHGXOX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-953 1 Los Fresnos TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-04-25   
956-953 4 Los Fresnos TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-10-17   
956-957 8 Edinburg TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2021-04-29   
956-974 1 McAllen TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-06-05   
956-974 2 McAllen TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-07-05   
956-974 3 McAllen TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-07-05   
956-974 4 McAllen TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-07-05   
956-974 5 McAllen TX 6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-10-11   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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