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: 560

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-560 A Rio Grande OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-560 0 Rio Grande OH   464C ONVOY, LLC - OH 324   2016-05-09   
740-560 1 Rio Grande OH   464C ONVOY, LLC - OH 324   2016-05-09   
740-560 2 Rio Grande OH   073H TELNYX LLC 324   2017-07-28   
740-560 3 Rio Grande OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2018-09-08   
740-560 4 Rio Grande OH   464C ONVOY, LLC - OH 324   2021-04-13   
740-560 6 Rio Grande OH   7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 324   2020-10-02   
740-560 7 Rio Grande OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2022-05-15   
740-560 8 Rio Grande OH   515J IP HORIZON LLC 324   2016-10-12   
740-560 9 Rio Grande OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2016-10-09   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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