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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
248-994 0 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 1 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 2 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 3 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 4 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 5 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 7 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 8 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
248-994 9 Farmington MI 9323 MICHIGAN BELL TEL CO 340      
586-285 A Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 0 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 1 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 2 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 3 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 4 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 6 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 7 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 8 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-285 9 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-293 A Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-294 A Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-296 A Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 A Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 0 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 1 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 2 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 4 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 5 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 6 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 7 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 8 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-415 9 Roseville MI 9323 MICHIGAN BELL TEL CO 340      
586-741 A Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-741 0 Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-741 2 Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-741 4 Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-746 A Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-746 1 Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-746 2 Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-746 3 Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-790 A Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-791 A Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      
586-792 A Mount Clemens MI 9323 MICHIGAN BELL TEL CO 340      

Last updated: Sun, 17 May 2026 03:26:51 UTC

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