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: PIVLMDPKFMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-841 7 Laurel (Baltimore LATA) MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
240-865 7 Washington Zone 14 (Baltimore LATA) MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
410-205 8 Pikesville MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
410-317 6 Armiger-Gibson Island MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
410-501 A Arbutus MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
410-501 1 Arbutus MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
410-568 7 Cockeysville MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
410-635 7 New Windsor MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
410-656 5 North East MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
410-702 6 Reisterstown MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
410-709 5 Sparrows Point MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-209 5 Havre de Grace MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
443-274 6 Severn MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
443-319 4 Columbia MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
443-353 6 Cockeysville MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-433 1 Annapolis MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
443-449 A Baltimore MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-449 2 Baltimore MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-491 2 Parkton MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      
443-503 7 Dundalk MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-550 5 North Beach MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-578 8 Cockeysville MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-718 6 Columbia MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-761 6 Towson MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-767 7 Worthington MD 9170 BROADVIEW NETWORKS, INC. - MD 238      
443-855 A Aberdeen MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 236      
443-855 1 Aberdeen MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 236      
443-918 3 Taneytown MD 5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.