Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 501 [Rate centres in NPA 501] [Dial plan for NPA 501]

NXX: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-544 A Shirley AR LTRKARWTBMD  5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528      
501-544 4 Shirley AR   145J TERRA NOVA TELECOM INC. 528   2025-05-13   
501-544 8 Shirley AR LTRKARWTBMD  5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528   2023-12-05   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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