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: OLNYMDOKDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-260 A Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-260 0 Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-260 1 Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-260 2 Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-260 3 Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-260 7 Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-260 8 Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-260 9 Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-570 A Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-774 A Ashton MD 9212 VERIZON MARYLAND, INC. 236      
301-924 A Washington Zone 12 MD 9212 VERIZON MARYLAND, INC. 236      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.