Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-304 A Queenstown MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242      
410-304 0 Queenstown MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-304 1 Queenstown MD   145J TERRA NOVA TELECOM INC. 242   2024-02-14   
410-304 2 Queenstown MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-20   
410-304 3 Queenstown MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-01   
410-304 4 Queenstown MD SLBRMDSBX6Y  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242   2011-01-29   
410-304 5 Queenstown MD SLBRMDSB8MD  2589 US LEC OF MARYLAND, INC. 242   2012-07-26   
410-304 6 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2018-05-27   
410-304 7 Queenstown MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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