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: GLWDMDGDRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-854 4 Ashton (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-854 5 Ashton (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-854 6 Ashton (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
301-854 7 Ashton (Baltimore LATA) MD 9212 VERIZON MARYLAND, INC. 238      
410-442 A Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 0 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 1 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 2 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 3 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 4 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 5 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 7 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 8 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-442 9 Ellicott City MD 9212 VERIZON MARYLAND, INC. 238      
410-489 A Glenwood MD 9212 VERIZON MARYLAND, INC. 238      
410-489 0 Glenwood MD 9212 VERIZON MARYLAND, INC. 238      
410-489 2 Glenwood MD 9212 VERIZON MARYLAND, INC. 238      
410-489 4 Glenwood MD 9212 VERIZON MARYLAND, INC. 238      
410-489 5 Glenwood MD 9212 VERIZON MARYLAND, INC. 238      
410-489 6 Glenwood MD 9212 VERIZON MARYLAND, INC. 238      
410-489 7 Glenwood MD 9212 VERIZON MARYLAND, INC. 238      
410-489 9 Glenwood MD 9212 VERIZON MARYLAND, INC. 238      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.