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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-600 A Berlin MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242      
410-600 0 Berlin MD SLBRMDSBXWX  861F MCC TELEPHONY OF THE MID-ATLANTIC, LLC - MD 242   2006-08-11   
410-600 1 Berlin MD SLBRMDSB8MD  2589 US LEC OF MARYLAND, INC. 242   2014-09-04   
410-600 2 Berlin MD SLBRMDSBXWX  861F MCC TELEPHONY OF THE MID-ATLANTIC, LLC - MD 242   2019-07-13   
410-600 3 Berlin MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-02   
410-600 4 Berlin MD SLBRMDSBXWX  861F MCC TELEPHONY OF THE MID-ATLANTIC, LLC - MD 242   2017-07-02   
410-600 5 Berlin MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2007-11-16   
410-600 6 Berlin MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-20   
410-600 7 Berlin MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
410-600 8 Berlin MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-600 9 Berlin MD   876D ONVOY, LLC - MD 242   2024-04-21   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.