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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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
248-239 7 Pontiac MI 145J TERRA NOVA TELECOM INC. 340   2026-01-15   
248-412 4 Northville MI 145J TERRA NOVA TELECOM INC. 340   2025-08-29   
248-434 4 Troy MI 145J TERRA NOVA TELECOM INC. 340   2026-06-06   
248-468 9 Northville MI 145J TERRA NOVA TELECOM INC. 340   2026-06-23   
517-518 9 Howell MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
586-281 0 Romeo MI 145J TERRA NOVA TELECOM INC. 340   2026-03-29   
586-802 2 Utica MI 145J TERRA NOVA TELECOM INC. 340   2026-06-04   
586-900 A Mount Clemens MI 145J TERRA NOVA TELECOM INC. 340      
586-933 0 Warren MI 145J TERRA NOVA TELECOM INC. 340   2026-07-06   
734-268 0 Dexter MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
734-628 0 Milan MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
734-708 0 Maybee MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
734-742 0 Livonia MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
734-749 0 Rockwood MI 145J TERRA NOVA TELECOM INC. 340   2026-01-05   
734-818 8 Trenton MI 145J TERRA NOVA TELECOM INC. 340   2026-05-01   
734-823 0 Dundee MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
734-864 3 Ann Arbor MI 145J TERRA NOVA TELECOM INC. 340   2026-06-04   
734-869 0 Carleton MI 145J TERRA NOVA TELECOM INC. 340   2026-04-30   
734-899 3 Wayne MI 145J TERRA NOVA TELECOM INC. 340   2026-07-06   
810-454 9 St Clair MI 145J TERRA NOVA TELECOM INC. 340   2025-11-25   
810-475 0 Brown City MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
810-519 2 Fenton MI 145J TERRA NOVA TELECOM INC. 340   2026-06-06   
810-542 8 Dryden MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
810-597 0 Flint MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
810-882 0 Lapeer MI 145J TERRA NOVA TELECOM INC. 340   2026-01-04   
810-937 0 Port Huron MI 145J TERRA NOVA TELECOM INC. 340   2026-01-05   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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