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: ABRDMDABDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-272 A Aberdeen MD 9212 VERIZON MARYLAND, INC. 236      
410-273 A Aberdeen MD 9212 VERIZON MARYLAND, INC. 236      
410-278 A Aberdeen MD 9212 VERIZON MARYLAND, INC. 236      
410-297 A Aberdeen MD 9212 VERIZON MARYLAND, INC. 236      
410-306 A Aberdeen MD 9212 VERIZON MARYLAND, INC. 236      
410-575 A Fork MD 9212 VERIZON MARYLAND, INC. 238      
410-994 A Edgewood MD 9212 VERIZON MARYLAND, INC. 238      
443-395 A Aberdeen MD 9212 VERIZON MARYLAND, INC. 236   2009-10-11   
443-861 A Aberdeen MD 9212 VERIZON MARYLAND, INC. 236   2009-10-11   

Last updated: Sat, 09 Mar 2019 02:16:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.