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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Edgewood, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
667-824 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-824 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-824 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-824 8 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   
667-824 9 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   

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

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