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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-999 2 Corning OH CLMDOH44MMD  516J TON80 COMMUNICATIONS, LLC 324   2021-09-16   
740-999 4 Corning OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-03-11   
740-999 5 Corning OH CLMDOH44JMD  965H FRACTEL, LLC 324   2020-03-19   
740-999 7 Corning OH CLMDOH44JMD  965H FRACTEL, LLC 324   2020-03-19   
740-999 8 Corning OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2015-08-01   
740-999 9 Corning OH   145J TERRA NOVA TELECOM INC. 324   2025-04-09   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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