Local Calling Guide

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NPA: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-543 A Amsterdam OH AMSTOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-543 1 Amsterdam OH AMSTOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-543 3 Amsterdam OH AMSTOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-543 4 Amsterdam OH AMSTOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-543 6 Amsterdam OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324   2014-07-05   
740-543 7 Amsterdam OH CLMKOHPE0MD  793K TWC IP ENABLED SERVICES, LLC 324   2024-04-28   
740-543 8 Amsterdam OH AMSTOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-543 9 Amsterdam OH   145J TERRA NOVA TELECOM INC. 324   2025-07-12   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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