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: FRDRMDFR9MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-378 3 Frederick MD 5562 METROPCS, INC. 240   2011-07-08   
301-378 4 Frederick MD 5562 METROPCS, INC. 240   2011-07-08   
301-378 5 Frederick MD 5562 METROPCS, INC. 240   2022-11-07   
301-418 0 Frederick MD 5562 METROPCS, INC. 240   2003-10-11   
301-418 1 Frederick MD 5562 METROPCS, INC. 240   2003-10-11   
301-418 2 Frederick MD 5562 METROPCS, INC. 240   2003-10-11   
301-418 3 Frederick MD 5562 METROPCS, INC. 240   2004-01-31   
301-418 4 Frederick MD 5562 METROPCS, INC. 240   2004-01-31   
301-418 5 Frederick MD 5562 METROPCS, INC. 240   2004-06-10   
301-418 8 Frederick MD 5562 METROPCS, INC. 240   2004-09-13   
301-473 1 Frederick MD 5562 METROPCS, INC. 240   2007-12-13   
301-624 0 Frederick MD 5562 METROPCS, INC. 240   2019-08-30   
301-712 0 Frederick MD 5562 METROPCS, INC. 240   2004-10-03   
301-712 1 Frederick MD 5562 METROPCS, INC. 240   2004-10-03   
301-712 2 Frederick MD 5562 METROPCS, INC. 240   2005-02-11   
301-712 3 Frederick MD 5562 METROPCS, INC. 240   2005-12-10   
301-712 4 Frederick MD 5562 METROPCS, INC. 240   2006-02-19   
301-732 A Frederick MD 5562 METROPCS, INC. 240      
301-732 0 Frederick MD 5562 METROPCS, INC. 240   2014-12-01   
301-732 1 Frederick MD 5562 METROPCS, INC. 240   2013-06-14   
301-732 2 Frederick MD 5562 METROPCS, INC. 240   2013-08-01   
301-732 3 Frederick MD 5562 METROPCS, INC. 240   2014-12-23   
301-748 A Frederick MD 5562 METROPCS, INC. 240   2024-02-09   
301-748 1 Frederick MD 5562 METROPCS, INC. 240      
301-748 2 Frederick MD 5562 METROPCS, INC. 240      
301-748 3 Frederick MD 5562 METROPCS, INC. 240      
301-748 4 Frederick MD 5562 METROPCS, INC. 240      
301-748 5 Frederick MD 5562 METROPCS, INC. 240      
301-748 6 Frederick MD 5562 METROPCS, INC. 240      
301-748 7 Frederick MD 5562 METROPCS, INC. 240      
301-748 8 Frederick MD 5562 METROPCS, INC. 240      
301-748 9 Frederick MD 5562 METROPCS, INC. 240      
301-835 3 Frederick MD 5562 METROPCS, INC. 240   2019-11-29   
301-898 6 Frederick MD 5562 METROPCS, INC. 240   2015-12-27   

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

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