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: 385 [Rate centres in NPA 385] [Dial plan for NPA 385]

NXX: 618

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
385-618 A Provo UT   6529 T-MOBILE USA, INC. 660   2026-01-23   
385-618 7 Provo UT   6529 T-MOBILE USA, INC. 660   2026-01-23   
385-618 8 Provo UT   6529 T-MOBILE USA, INC. 660   2026-01-23   
385-618 9 Provo UT   6529 T-MOBILE USA, INC. 660   2026-01-23   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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