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.
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Switch: BLTQMD01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-653 A Laurel (Baltimore LATA) MD 568G PEERLESS NETWORK OF MARYLAND, LLC 238      
410-844 A Baltimore MD 568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-713 A Glen Burnie MD 568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-906 A Severna Park MD 568G PEERLESS NETWORK OF MARYLAND, LLC 238      
667-307 A Crofton MD 568G PEERLESS NETWORK OF MARYLAND, LLC 238      
667-308 A Towson MD 568G PEERLESS NETWORK OF MARYLAND, LLC 238      
667-353 A Cardiff MD 469J CORETEL MARYLAND, INC. - MD 238      
667-777 A Severna Park MD 568G PEERLESS NETWORK OF MARYLAND, LLC 238      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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