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: 434

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
570-434 A Harford PA FRCYPAXFDS1  0191 NORTH EASTERN PENNSYLVANIA TEL. CO. 232      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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