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.

NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 297

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-297 A Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
410-297 0 Aberdeen MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-21   
410-297 1 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-02-06   
410-297 2 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
410-297 3 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
410-297 4 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
410-297 5 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
410-297 6 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
410-297 7 Aberdeen MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-21   
410-297 8 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
410-297 9 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.