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: BLTMMDCHFMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
443-881 A Reisterstown MD 5562 METROPCS, INC. 238      
667-206 A Towson MD 5562 METROPCS, INC. 238      
667-297 A Edgewood MD 5562 METROPCS, INC. 238   2021-01-30   
667-371 A Ellicott City MD 5562 METROPCS, INC. 238   2022-01-13   
667-386 A Arbutus MD 5562 METROPCS, INC. 238   2022-02-04   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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