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: BLTMMDCHXMX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-895 A Baltimore MD 506J TWILIO INTERNATIONAL, INC. 238      
667-895 8 Baltimore MD 506J TWILIO INTERNATIONAL, INC. 238   2020-12-13   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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