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: 2697 CTC COMMUNICATIONS CORP. - MD

<< 1 2

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-645 1 Millersville MD BLTMMDCH14Z  238      
443-646 A North Beach MD BLTMMDCH14Z  238      
443-646 1 North Beach MD BLTMMDCH14Z  238      
443-647 A New Windsor MD BLTMMDCH14Z  238      
443-647 1 New Windsor MD BLTMMDCH14Z  238      
443-652 5 Towson MD BLTMMDCH14Z  238      
443-733 2 Waterloo MD BLTMMDCH14Z  238      
443-787 A Bel Air MD BLTMMDCH14Z  238      
443-787 1 Bel Air MD BLTMMDCH14Z  238      
443-805 2 Glen Burnie MD BLTMMDCH14Z  238      
443-808 2 Annapolis MD BLTMMDCH14Z  238      
443-841 1 Towson MD BLTMMDCH14Z  238      
443-843 3 Havre de Grace MD BLTMMDCH14Z  238      
443-868 6 Essex MD BLTMMDCH14Z  238      
443-878 1 Columbia MD BLTMMDCH14Z  238      
443-879 1 Dundalk MD BLTMMDCH14Z  238      
443-931 4 Baltimore MD BLTMMDCH14Z  238      
443-947 A Perryville MD BLTMMDCH14Z  238      
443-947 1 Perryville MD BLTMMDCH14Z  238      
443-948 7 Baltimore MD BLTMMDCH14Z  238      
443-968 3 Prince Frederick MD BLTMMDCH14Z  238      
667-224 6 Baltimore MD BLTMMDCH14Z  238      
667-224 7 Baltimore MD BLTMMDCH14Z  238      

<< 1 2

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.