Local Calling Guide

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

NXX: 865

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-865 A Washington Zone 14 (Baltimore LATA) MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
240-865 0 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-02-01   
240-865 1 Washington Zone 14 (Baltimore LATA) MD   829J PAETEC ITEL, LLC 238   2006-01-14   
240-865 2 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2008-04-07   
240-865 3 Washington Zone 14 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-09-06   
240-865 4 Washington Zone 14 (Baltimore LATA) MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-08-11   
240-865 5 Washington Zone 14 (Baltimore LATA) MD   829J PAETEC ITEL, LLC 238   2007-03-02   
240-865 6 Washington Zone 14 (Baltimore LATA) MD   145J TERRA NOVA TELECOM INC. 238   2023-08-06   
240-865 7 Washington Zone 14 (Baltimore LATA) MD   829J PAETEC ITEL, LLC 238   2007-09-20   
240-865 8 Washington Zone 14 (Baltimore LATA) MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-12-03   
240-865 9 Washington Zone 14 (Baltimore LATA) MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2006-05-05   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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