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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 6630 USA MOBILITY WIRELESS, INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
985-699 A Slidell LA LARSLAXA0MD  490      
985-743 A Houma LA LARSLAXA0MD  490      
985-744 A Hammond LA LARSLAXA0MD  490      
985-786 A Covington LA LARSLAXA0MD  490      
985-890 A Houma LA LARSLAXA0MD  490      
989-253 A Saginaw MI SGNWMIACDS1  344      
989-454 A Midland MI SGNWMIACDS1  344      
989-591 A Alpena MI SGNWMIACDS1  344      
989-594 A Gaylord MI SGNWMIACDS1  344      
989-829 A Owosso MI SGNWMIACDS1  344      

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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