Local Calling Guide

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

NXX: 484

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-484 A Bethesda OH BTHSOH48RS1  9321 OHIO BELL TEL CO 324      
740-484 0 Bethesda OH   9321 OHIO BELL TEL CO 324      
740-484 1 Bethesda OH   9321 OHIO BELL TEL CO 324      
740-484 2 Bethesda OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324   2020-08-23   
740-484 4 Bethesda OH   9321 OHIO BELL TEL CO 324      
740-484 5 Bethesda OH   624H ONVOY SPECTRUM, LLC 324   2024-07-25   
740-484 7 Bethesda OH   516J TON80 COMMUNICATIONS, LLC 324   2021-10-20   
740-484 8 Bethesda OH   464C ONVOY, LLC - OH 324   2015-07-03   
740-484 9 Bethesda OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 324   2017-12-11   

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

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