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: SLBRMD905MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-235 A Salisbury MD 197D VONAGE AMERICA LLC 242      
667-235 0 Salisbury MD 197D VONAGE AMERICA LLC 242   2018-07-30   
667-319 0 Chestertown MD 197D VONAGE AMERICA LLC 242   2022-07-09   
667-775 1 Millington MD 197D VONAGE AMERICA LLC 242   2022-07-09   

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

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