Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Upton, ME

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
207-533 A UPTNMEXARS1  3314 OXFORD WEST TELEPHONE COMPANY 120      
207-533 2 UPTNMEXARS1  3314 OXFORD WEST TELEPHONE COMPANY 120      
207-533 3   145J TERRA NOVA TELECOM INC. 120   2025-06-06   
207-533 6 UPTNMEXARS1  3314 OXFORD WEST TELEPHONE COMPANY 120      
207-533 9 UPTNMEXARS1  3314 OXFORD WEST TELEPHONE COMPANY 120      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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