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: FSBGMDFSDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-687 A Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-687 0 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-687 1 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-687 3 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-687 4 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-687 5 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-687 7 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 A Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 0 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 1 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 2 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 3 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 5 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 6 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 7 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 8 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      
301-689 9 Frostburg MD 9212 VERIZON MARYLAND, INC. 240      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.