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: 690

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-690 A Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
410-690 0 Easton MD   145J TERRA NOVA TELECOM INC. 242   2021-01-28   
410-690 1 Easton MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2004-02-28   
410-690 2 Easton MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2004-02-28   
410-690 3 Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2005-01-07   
410-690 4 Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2004-06-12   
410-690 5 Easton MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2006-01-29   
410-690 6 Easton MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2006-05-19   
410-690 7 Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2010-09-24   
410-690 8 Easton MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2009-08-13   
410-690 9 Easton MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2002-07-25   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.