Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-531 A Laredo TX SNANTXEW0MD  829J PAETEC ITEL, LLC 566   2025-01-23   
956-531 0 Laredo TX SNANTX91X7Y  4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   
956-531 1 Laredo TX SNANTX91X7Y  4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   
956-531 2 Laredo TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-13   
956-531 3 Laredo TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-13   
956-531 4 Laredo TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2020-08-13   
956-531 5 Laredo TX SNANTXEW0MD  829J PAETEC ITEL, LLC 566   2020-06-04   
956-531 6 Laredo TX SNANTXCA41Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2020-08-10   
956-531 7 Laredo TX SNANTX91X7Y  4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   
956-531 8 Laredo TX SNANTX91X7Y  4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   
956-531 9 Laredo TX SNANTX91X7Y  4290 STPCS JOINT VENTURE, LLC 566   2020-09-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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