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: 906 [Rate centres in NPA 906] [Dial plan for NPA 906]

NXX: 912

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-912 A Au Train MI MRQTMIMNX2X  624H ONVOY SPECTRUM, LLC 342   2024-12-21   
906-912 0 Au Train MI MRQTMIMNX2X  624H ONVOY SPECTRUM, LLC 342   2024-12-21   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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