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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OCN: 732J NUSO, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
986-249 A Idaho Falls ID BOISID373MD  652      
986-249 2 Idaho Falls ID BOISID373MD  652   2023-04-02   
986-251 A Moscow ID CRALIDABBMD  960      
986-251 2 Moscow ID CRALIDABBMD  960   2023-04-02   
989-363 A Merrill MI MRRLMIXGAMD  344      
989-363 1 Merrill MI MRRLMIXGAMD  344   2022-10-30   
989-363 2 Merrill MI MRRLMIXGAMD  344   2023-12-11   
989-363 4 Merrill MI MRRLMIXGAMD  344   2023-12-17   
989-363 7 Merrill MI MRRLMIXGAMD  344   2024-09-09   
989-364 7 Saginaw MI   344   2025-07-07   
989-391 A Bay City MI SGNWMIACNMD  344      
989-391 6 Bay City MI SGNWMIACNMD  344   2023-03-05   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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