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: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-991 A Edinburg TX   515J IP HORIZON LLC 568   2025-06-01   
956-991 0 Edinburg TX   4290 STPCS JOINT VENTURE, LLC 568   2025-08-07   
956-991 1 Edinburg TX   515J IP HORIZON LLC 568   2025-06-01   
956-991 2 Edinburg TX   515J IP HORIZON LLC 568   2025-06-01   
956-991 3 Edinburg TX   4290 STPCS JOINT VENTURE, LLC 568   2025-08-07   
956-991 4 Edinburg TX   4290 STPCS JOINT VENTURE, LLC 568   2025-08-07   
956-991 5 Edinburg TX   4290 STPCS JOINT VENTURE, LLC 568   2025-08-07   
956-991 6 Edinburg TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2025-08-12   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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