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: 535

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-535 A Rising Sun MD   490J BOOST SUBSCRIBERCO L.L.C. 238   2026-02-05   
667-535 0 Rising Sun MD   490J BOOST SUBSCRIBERCO L.L.C. 238   2026-02-05   
667-535 1 Rising Sun MD   490J BOOST SUBSCRIBERCO L.L.C. 238   2026-03-23   
667-535 5 Rising Sun MD   145J TERRA NOVA TELECOM INC. 238   2026-02-06   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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