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: 350 [Rate centres in NPA 350] [Dial plan for NPA 350]

NXX: 215

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-215 A Snelling CA SKTNCACZ4MD  939H COMMIO, LLC 738   2024-02-24   
350-215 0 Snelling CA SKTNCACZ4MD  939H COMMIO, LLC 738   2024-02-24   
350-215 1 Snelling CA SKTNCACZ4MD  939H COMMIO, LLC 738   2024-02-24   
350-215 7 Snelling CA   114J EXIANT COMMUNICATIONS LLC 738   2026-10-16   
350-215 8 Snelling CA MNTCCAXGRMD  624H ONVOY SPECTRUM, LLC 738   2025-01-30   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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