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.

Switch: HNVAMDAYCM3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-212 A Annapolis MD 6664 SPRINT SPECTRUM L.P. 238      
410-258 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
410-262 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
410-419 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
410-493 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
410-499 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
410-903 A Severna Park MD 6664 SPRINT SPECTRUM L.P. 238      
410-908 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
410-963 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
443-226 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
443-306 A Severna Park MD 6664 SPRINT SPECTRUM L.P. 238      
443-404 A Solomons MD 6664 SPRINT SPECTRUM L.P. 238      
443-528 A Bel Air MD 6664 SPRINT SPECTRUM L.P. 238      
443-629 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
443-694 A Severna Park MD 6664 SPRINT SPECTRUM L.P. 238      
443-714 A Annapolis MD 6664 SPRINT SPECTRUM L.P. 238   2011-11-14   
443-803 A Baltimore MD 6664 SPRINT SPECTRUM L.P. 238      
443-822 A Annapolis MD 6664 SPRINT SPECTRUM L.P. 238      
443-866 A Bel Air MD 6664 SPRINT SPECTRUM L.P. 238      
443-876 A Bel Air MD 6664 SPRINT SPECTRUM L.P. 238      
443-905 A Annapolis MD 6664 SPRINT SPECTRUM L.P. 238   2011-09-26   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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