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: 735

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-735 A Baltimore MD   829J PAETEC ITEL, LLC 238   2025-04-01   
410-735 0 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-735 1 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-735 2 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-735 3 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-735 4 Baltimore MD BLTMMDLBDS0  9212 VERIZON MARYLAND, INC. 238   2003-10-18   
410-735 5 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-735 6 Baltimore MD BLTMMDLBDS0  9212 VERIZON MARYLAND, INC. 238   2003-09-26   
410-735 7 Baltimore MD BLTMMDLBDS0  9212 VERIZON MARYLAND, INC. 238   2003-09-26   
410-735 8 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-735 9 Baltimore MD   829J PAETEC ITEL, LLC 238      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.