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
410-593 A Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-593 0 Fork MD   876D ONVOY, LLC - MD 238   2016-02-25   
410-593 1 Fork MD   876D ONVOY, LLC - MD 238   2015-07-29   
410-593 2 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-593 3 Fork MD   876D ONVOY, LLC - MD 238   2016-02-16   
410-593 4 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-593 5 Fork MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   
410-593 6 Fork MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   
410-593 7 Fork MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2011-12-17   
410-593 8 Fork MD   876D ONVOY, LLC - MD 238   2016-02-25   
410-593 9 Fork MD   9212 VERIZON MARYLAND, INC. 238      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.