Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-339 A Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-339 0 Sykesville MD   624H ONVOY SPECTRUM, LLC 238   2021-11-26   
667-339 1 Sykesville MD   624H ONVOY SPECTRUM, LLC 238   2021-11-26   
667-339 2 Sykesville MD   876D ONVOY, LLC - MD 238   2021-10-31   
667-339 3 Sykesville MD   876D ONVOY, LLC - MD 238   2021-10-31   
667-339 4 Sykesville MD   624H ONVOY SPECTRUM, LLC 238   2022-03-24   
667-339 5 Sykesville MD   624H ONVOY SPECTRUM, LLC 238   2022-03-24   
667-339 6 Sykesville MD   624H ONVOY SPECTRUM, LLC 238   2022-02-12   
667-339 7 Sykesville MD   624H ONVOY SPECTRUM, LLC 238   2022-02-12   
667-339 8 Sykesville MD   876D ONVOY, LLC - MD 238   2022-10-16   
667-339 9 Sykesville MD   876D ONVOY, LLC - MD 238   2023-08-10   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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