Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: MCALTX938MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-910 A Harlingen TX 478J NUSO, LLC 568   2025-02-09   
956-910 2 Harlingen TX 478J NUSO, LLC 568   2025-02-09   

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

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