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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-260 A Washington Zone 14 MD WASHDCRKDS3  8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-260 0 Washington Zone 14 MD   8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-260 1 Washington Zone 14 MD   8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-260 2 Washington Zone 14 MD   8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-260 3 Washington Zone 14 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2017-11-13   
240-260 4 Washington Zone 14 MD   8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-260 5 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-260 6 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-260 7 Washington Zone 14 MD   5562 METRO PCS, INC. 236   2017-10-01   
240-260 8 Washington Zone 14 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-10-22   
240-260 9 Washington Zone 14 MD   8992 ALLEGIANCE TELECOM, INC. - MD 236      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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