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.

NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 267

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-267 A Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
956-267 0 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2011-04-21   
956-267 1 Laredo TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2011-12-11   
956-267 2 Laredo TX SNANTXEW3MD  7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 566   2011-12-30   
956-267 3 Laredo TX SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566   2011-06-10   
956-267 4 Laredo TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2011-07-03   
956-267 5 Laredo TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2011-07-03   
956-267 6 Laredo TX SNANTX39TMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 566   2012-12-20   
956-267 7 Laredo TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2012-05-16   
956-267 8 Laredo TX SNANTXCA44Z  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2011-12-30   
956-267 9 Laredo TX SNANTXCA34Z  004F BANDWIDTH.COM CLEC, LLC - TX 566   2012-11-19   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.