Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 570 [Rate centres in NPA 570] [Dial plan for NPA 570]

NXX: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
570-777 A Williamsport PA LWBGPAXL1MD  6921 LIMITLESS MOBILE, LLC 232      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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