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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OCN: 469J CORETEL MARYLAND, INC. - MD

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-697 A Mechanicsville MD WASHDC12DS6  236      
240-697 6 Mechanicsville MD WASHDC12DS6  236   2019-11-11   
240-829 A Emmitsburg MD HGTWMD53DS0  240      
240-829 4 Emmitsburg MD HGTWMD53DS0  240   2019-11-11   
667-353 A Cardiff MD BLTQMD01DS0  238      
667-353 9 Cardiff MD BLTQMD01DS0  238   2019-11-11   
667-853 A Pocomoke MD SLBRMD90DS0  242      
667-853 9 Pocomoke MD SLBRMD90DS0  242   2019-11-11   
667-925 A Bel Air MD BLTQMD01BMD  238      
667-925 5 Bel Air MD BLTQMD01BMD  238   2021-11-14   

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

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