Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sumner, ME

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
207-388 A TRNRMEXADS0  0019 OXFORD COUNTY TEL. & TEL. CO. 120      
207-388 2   0019 OXFORD COUNTY TEL. & TEL. CO. 120      
207-388 3   0019 OXFORD COUNTY TEL. & TEL. CO. 120      
207-388 6   0019 OXFORD COUNTY TEL. & TEL. CO. 120      
207-388 8   145J TERRA NOVA TELECOM INC. 120   2025-06-06   
207-388 9   0019 OXFORD COUNTY TEL. & TEL. CO. 120      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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