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: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-640 A Bremen OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324      
740-640 3 Bremen OH ATHNOHXAMMD  624H ONVOY SPECTRUM, LLC 324   2023-05-08   
740-640 4 Bremen OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-03-11   
740-640 5 Bremen OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-03-11   
740-640 6 Bremen OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2019-06-07   
740-640 7 Bremen OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324   2017-04-03   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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