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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-538 A Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 0 Fork MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-22   
410-538 1 Fork MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-22   
410-538 2 Fork MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-21   
410-538 3 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 4 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 5 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 6 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 7 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 8 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 9 Fork MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-22   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.