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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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-966 7 New Windsor MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-966 8 New Windsor MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-999 A Elkridge MD 876D ONVOY, LLC - MD 238      
667-999 0 Elkridge MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-999 1 Elkridge MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-999 2 Elkridge MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-999 3 Elkridge MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-999 4 Elkridge MD 876D ONVOY, LLC - MD 238   2015-05-21   
667-999 5 Elkridge MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-999 6 Elkridge MD 876D ONVOY, LLC - MD 238   2015-07-27   
667-999 7 Elkridge MD 876D ONVOY, LLC - MD 238   2015-05-21   
667-999 8 Elkridge MD 876D ONVOY, LLC - MD 238   2015-05-21   
667-999 9 Elkridge MD 876D ONVOY, LLC - MD 238   2015-05-21   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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