Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 8697 BALTIMORE-WASHINGTON TELEPHONE (BWT)

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
410-985 A Waterloo (Washington DC LATA) MD VINNVACB2MD  236      
410-999 A Glen Burnie MD BLTMMDSN3MD  238      
410-999 2 Glen Burnie MD BLTMMDCH25Z  238   2010-11-06   
410-999 3 Glen Burnie MD BLTMMDCH25Z  238   2010-11-06   
410-999 6 Glen Burnie MD BLTMMDCH25Z  238   2003-07-26   
410-999 9 Glen Burnie MD BLTMMDSN3MD  238   2003-07-26   
443-331 8 Taneytown MD BLTMMDCH25Z  238   2015-07-17   
443-419 8 Glenwood MD BLTMMDCH25Z  238   2015-06-11   
443-456 9 Edgewood MD BLTMMDCH25Z  238   2015-06-11   
443-457 4 Brooklyn Park-Linthicum MD BLTMMDCH25Z  238   2015-06-05   
443-504 6 Fallston MD BLTMMDCH25Z  238   2015-06-14   
443-526 9 Havre de Grace MD BLTMMDCH25Z  238   2015-06-13   
443-585 5 Darlington MD BLTMMDCH25Z  238   2015-06-11   
443-639 6 Hampstead MD BLTMMDCH25Z  238   2015-06-13   
443-663 0 Woodlawn MD BLTMMDCH25Z  238   2015-06-20   
443-747 5 Port Deposit MD BLTMMDCH25Z  238   2006-05-04   
443-775 6 Annapolis MD BLTMMDCH25Z  238   2015-05-28   
443-776 6 Elkridge MD BLTMMDCH25Z  238   2015-06-11   
443-914 5 Worthington MD BLTMMDCH25Z  238   2015-06-20   
443-933 3 Cockeysville MD BLTMMDCH25Z  238   2015-06-05   
443-941 1 Elkton MD BLTMMDCH25Z  238   2015-06-11   
443-976 A Crofton MD BLTMMDCH25Z  238      
667-228 0 Aberdeen MD BLTMMDCH25Z  236   2015-05-25   
667-333 A Armiger-Gibson Island MD BLTMMDSN3MD  238      
667-333 3 Armiger-Gibson Island MD BLTMMDSN3MD  238   2015-07-05   
667-367 A Westminster MD BLTMMDSN3MD  238      
667-367 9 Westminster MD BLTMMDSN3MD  238   2015-07-12   

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Last updated: Tue, 04 May 2021 15:04:27 UTC

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