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: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-540 A Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 0 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 1 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 2 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 3 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 4 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 5 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 6 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 7 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 8 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 9 Pikesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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