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: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-557 A McCook TX HRLNTXHGXFX  508J CENTURYLINK COMMUNICATIONS, LLC 568      
956-557 7 McCook TX HRLNTXHGXFX  508J CENTURYLINK COMMUNICATIONS, LLC 568   2016-07-09   

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

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