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: NRTNMAAACM4

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-271 9 East Boston MA 5562 METROPCS, INC. 128      
617-279 1 Boston MA 5562 METROPCS, INC. 128   2003-10-06   
617-279 5 Boston MA 5562 METROPCS, INC. 128   2003-10-06   
617-279 6 Boston MA 5562 METROPCS, INC. 128   2003-10-06   
617-279 7 Boston MA 5562 METROPCS, INC. 128   2003-10-06   
617-279 9 Boston MA 5562 METROPCS, INC. 128   2003-10-06   
617-286 9 Charlestown MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-12-10   
617-290 A Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-290 0 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 1 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 2 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 3 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 4 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 5 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 6 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 7 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 8 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-290 9 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-293 A Boston MA 5562 METROPCS, INC. 128      
617-293 0 Boston MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-293 1 Boston MA 5562 METROPCS, INC. 128      
617-293 2 Boston MA 5562 METROPCS, INC. 128      
617-293 3 Boston MA 5562 METROPCS, INC. 128      
617-293 4 Boston MA 5562 METROPCS, INC. 128      
617-293 5 Boston MA 5562 METROPCS, INC. 128      
617-293 6 Boston MA 5562 METROPCS, INC. 128      
617-293 7 Boston MA 5562 METROPCS, INC. 128      
617-293 8 Boston MA 5562 METROPCS, INC. 128      
617-300 9 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-11-01   
617-301 3 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2004-12-16   
617-304 A Boston MA 5562 METROPCS, INC. 128      
617-304 0 Boston MA 5562 METROPCS, INC. 128      
617-304 1 Boston MA 5562 METROPCS, INC. 128      
617-304 2 Boston MA 5562 METROPCS, INC. 128      
617-304 3 Boston MA 5562 METROPCS, INC. 128      
617-304 4 Boston MA 5562 METROPCS, INC. 128      
617-304 5 Boston MA 5562 METROPCS, INC. 128      
617-304 6 Boston MA 5562 METROPCS, INC. 128      
617-304 7 Boston MA 5562 METROPCS, INC. 128      
617-304 8 Boston MA 5562 METROPCS, INC. 128      
617-304 9 Boston MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-307 8 South Boston MA 5562 METROPCS, INC. 128   2005-11-14   
617-308 A Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
617-308 0 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 1 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 2 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 3 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 4 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 5 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
617-308 6 Cambridge MA 6889 OMNIPOINT MIAMI E LICENSE, LLC 128      

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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