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: BLTQMD01AMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-577 A Elkton MD 965H FRACTEL, LLC 238      
667-577 7 Elkton MD 965H FRACTEL, LLC 238   2020-09-12   
667-688 A Parkville MD 965H FRACTEL, LLC 238      
667-688 8 Parkville MD 965H FRACTEL, LLC 238   2020-09-12   
667-758 A Silver Run MD 965H FRACTEL, LLC 238      
667-758 6 Silver Run MD 965H FRACTEL, LLC 238   2020-09-12   
667-842 A Woodlawn MD 965H FRACTEL, LLC 238      
667-842 5 Woodlawn MD 965H FRACTEL, LLC 238   2020-09-12   
667-899 A Baltimore MD 965H FRACTEL, LLC 238      
667-899 9 Baltimore MD 965H FRACTEL, LLC 238   2021-12-26   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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