Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 852

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-852 A London OH LONDOH85DS1  9321 OHIO BELL TEL CO 324      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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