Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 964H BARR TELL USA, INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-302 2 Laurel MD WASHDC126MD  236      
240-530 5 Waldorf MD WASHDC126MD  236      
240-557 7 Washington Zone 6 MD WASHDC126MD  236      
240-563 5 Washington Zone 5 MD WASHDC126MD  236      
240-590 0 Washington Zone 12 MD WASHDC126MD  236      
240-661 2 Lexington Park-Great Mills MD WASHDC126MD  236      
240-805 9 Gaithersburg MD WASHDC126MD  236      
240-906 5 Washington Zone 4 MD WASHDC126MD  236      
301-235 5 Washington Zone 16 MD WASHDC126MD  236      
301-545 3 Washington Zone 10 MD WASHDC126MD  236      
301-578 3 Washington Zone 3 MD WASHDC126MD  236      
301-603 5 Washington Zone 11 MD WASHDC126MD  236      
301-941 5 Washington Zone 2 MD WASHDC126MD  236      
410-204 0 Arbutus MD BLTQMD012MD  238      
410-406 4 Essex MD BLTQMD012MD  238      
410-421 2 Severna Park MD BLTQMD012MD  238      
410-781 5 Ellicott City MD BLTQMD012MD  238      
410-816 1 Towson MD BLTQMD012MD  238      
443-450 0 Pikesville MD BLTQMD012MD  238      
443-490 8 Edgewood MD BLTQMD012MD  238      
443-495 8 Parkville MD BLTQMD012MD  238      
443-549 5 Dundalk MD BLTQMD012MD  238      
443-590 8 Reisterstown MD BLTQMD012MD  238      
443-645 7 Millersville MD BLTQMD012MD  238      
443-675 5 Randallstown MD BLTQMD012MD  238      
443-689 3 Cockeysville MD BLTQMD012MD  238      
443-698 0 Odenton MD BLTQMD012MD  238      
443-775 4 Annapolis MD BLTQMD012MD  238      
443-780 7 Woodlawn MD BLTQMD012MD  238      
443-795 7 Severn MD BLTQMD012MD  238      
667-215 1 Elkton MD BLTQMD012MD  238      
667-240 A Columbia MD BLTQMD012MD  238      
667-240 1 Columbia MD BLTQMD012MD  238      
667-307 3 Crofton MD BLTQMD012MD  238      
667-314 A Westminster MD BLTQMD012MD  238      
667-314 1 Westminster MD BLTQMD012MD  238      
667-352 1 Aberdeen MD BLTQMD012MD  236      
667-400 A Baltimore MD BLTQMD012MD  238      
667-400 1 Baltimore MD BLTQMD012MD  238      
667-701 7 Elkridge MD BLTQMD012MD  238      
667-802 3 Catonsville MD BLTQMD012MD  238      
667-967 A Glen Burnie MD BLTQMD012MD  238      
667-967 1 Glen Burnie MD BLTQMD012MD  238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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