Local Calling Guide

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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 237

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-237 A Lexington Park-Great Mills MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-237 0 Lexington Park-Great Mills MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-16   
240-237 1 Lexington Park-Great Mills MD   829J PAETEC ITEL, LLC 236   2004-02-05   
240-237 2 Lexington Park-Great Mills MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-08-09   
240-237 3 Lexington Park-Great Mills MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-09-02   
240-237 4 Lexington Park-Great Mills MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-237 5 Lexington Park-Great Mills MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-04-07   
240-237 6 Lexington Park-Great Mills MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-04-05   
240-237 7 Lexington Park-Great Mills MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-05-31   
240-237 8 Lexington Park-Great Mills MD CHCHMDBEXCX  228C IDT AMERICA, CORP. - MD 236   2007-09-12   
240-237 9 Lexington Park-Great Mills MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-04-05   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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