Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 906 [Rate centres in NPA 906] [Dial plan for NPA 906]

NXX: 776

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-776 A Iron Mountain MI IRMTMIMNDS0  9323 MICHIGAN BELL TEL CO 342      
906-776 0 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      
906-776 1 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      
906-776 2 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      
906-776 3 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      
906-776 4 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      
906-776 5 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      
906-776 6 Iron Mountain MI   732J NUSO, LLC 342   2025-07-05   
906-776 7 Iron Mountain MI   732J NUSO, LLC 342   2025-07-05   
906-776 8 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      
906-776 9 Iron Mountain MI   9323 MICHIGAN BELL TEL CO 342      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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