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: BLTQMD01BMD

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-848 A Aberdeen MD 516J TON80 COMMUNICATIONS, LLC 236      
667-848 3 Aberdeen MD 516J TON80 COMMUNICATIONS, LLC 236   2021-05-09   
667-856 A Dundalk MD 516J TON80 COMMUNICATIONS, LLC 238      
667-856 7 Dundalk MD 516J TON80 COMMUNICATIONS, LLC 238   2022-05-03   
667-925 A Bel Air MD 469J CORETEL MARYLAND, INC. - MD 238      
667-925 5 Bel Air MD 469J CORETEL MARYLAND, INC. - MD 238   2021-11-14   
667-942 A Aberdeen MD 516J TON80 COMMUNICATIONS, LLC 236      
667-942 4 Aberdeen MD 516J TON80 COMMUNICATIONS, LLC 236   2022-04-10   

<< 1 2

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.