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: FIVLMDFRRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-746 A Friendsville MD 9212 VERIZON MARYLAND, INC. 240      
301-746 4 Friendsville MD 9212 VERIZON MARYLAND, INC. 240      
301-746 5 Friendsville MD 9212 VERIZON MARYLAND, INC. 240      
301-746 6 Friendsville MD 9212 VERIZON MARYLAND, INC. 240      
301-746 7 Friendsville MD 9212 VERIZON MARYLAND, INC. 240      
301-746 8 Friendsville MD 9212 VERIZON MARYLAND, INC. 240      
301-746 9 Friendsville MD 9212 VERIZON MARYLAND, INC. 240      

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.