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
410-304 A Queenstown MD QNTWMDARPS0  228C IDT AMERICA CORP - MD 242   2006-05-20   
410-304 0 Queenstown MD   073H TELNYX LLC 242   2017-09-13   
410-304 1 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-304 2 Queenstown MD   228C IDT AMERICA CORP - MD 242   2006-05-20   
410-304 3 Queenstown MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2009-03-01   
410-304 4 Queenstown MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242   2011-01-29   
410-304 5 Queenstown MD   2589 US LEC OF MARYLAND, INC. 242   2012-07-26   
410-304 6 Queenstown MD   876D ONVOY, LLC - MD 242   2018-05-27   
410-304 7 Queenstown MD   876D ONVOY, LLC - MD 242   2017-04-14   
410-304 8 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
410-304 9 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.