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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: BLTMMDCHXUX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-887 7 Worthington MD 624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-895 2 Baltimore MD 624H ONVOY SPECTRUM, LLC 238   2021-11-12   
667-962 4 North Beach MD 624H ONVOY SPECTRUM, LLC 238   2022-01-29   
667-962 5 North Beach MD 624H ONVOY SPECTRUM, LLC 238   2022-01-29   
667-962 7 North Beach MD 624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-966 3 New Windsor MD 624H ONVOY SPECTRUM, LLC 238   2022-02-05   
667-966 4 New Windsor MD 624H ONVOY SPECTRUM, LLC 238   2022-02-05   
667-966 9 New Windsor MD 624H ONVOY SPECTRUM, LLC 238   2021-05-23   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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