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.

Switch: GLDSMIGERSA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
906-428 A Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-428 1 Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-428 2 Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-428 3 Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-428 4 Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-428 5 Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-428 9 Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-825 A Gladstone MI 9323 MICHIGAN BELL TEL CO 342      
906-825 0 Gladstone MI 9323 MICHIGAN BELL TEL CO 342      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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