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: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-307 A Ironwood MI MRQTMIAQDS0  4632 INTERACTIVE SERVICES NETWORK, INC. 342      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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