Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 862

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-862 A Mount Savage MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-862 0 Mount Savage MD   073H TELNYX LLC 240   2017-08-08   
240-862 1 Mount Savage MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-862 2 Mount Savage MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-862 3 Mount Savage MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-862 4 Mount Savage MD   876D ONVOY, LLC - MD 240   2019-05-25   
240-862 5 Mount Savage MD   624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-862 7 Mount Savage MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2016-11-12   
240-862 8 Mount Savage MD   876D ONVOY, LLC - MD 240   2016-10-02   
240-862 9 Mount Savage MD   876D ONVOY, LLC - MD 240   2016-10-02   

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

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