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.

Switch: BLTMMDCH14Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-900 A Baltimore MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-227 A Port Deposit MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-230 A Odenton MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-238 A Parkton MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-247 A Union Bridge MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-256 A North East MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-328 A Sykesville MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-331 A Taneytown MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-338 A Sparks-Glencoe MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-339 A Sherwood Forest MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-342 A Solomons MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-347 A Cardiff MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-383 A Silver Run MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-432 A Prince Frederick MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-526 A Havre de Grace MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-582 A Churchville MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-583 A Columbia MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-584 A Crofton MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-585 A Darlington MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-587 A Edgewood MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-593 A Elkton MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-601 A Fallston MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-606 A Fork MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-639 A Hampstead MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-644 A Jarrettsville MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-645 A Millersville MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-646 A North Beach MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-647 A New Windsor MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-787 A Bel Air MD 2697 CTC COMMUNICATIONS CORP. - MD 238      
443-947 A Perryville MD 2697 CTC COMMUNICATIONS CORP. - MD 238      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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