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: 474

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-474 A Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-11   
667-474 0 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-11   
667-474 1 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-11   
667-474 2 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-11   
667-474 4 Armiger-Gibson Island MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-07   
667-474 5 Armiger-Gibson Island MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-07   
667-474 6 Armiger-Gibson Island MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-07   
667-474 7 Armiger-Gibson Island MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-08-07   
667-474 8 Armiger-Gibson Island MD   876D ONVOY, LLC - MD 238   2026-07-24   
667-474 9 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2025-12-14   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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