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: 129J NTERA, LLC - WI

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
715-239 9 Cornell WI   352   2020-08-16   
715-288 9 Eagle Point WI   352   2022-05-09   
715-289 7 Cadott WI   352   2020-08-16   
715-404 2 Jim Falls WI   352   2020-08-16   
715-447 9 Gilman WI   352   2022-03-06   
715-452 9 Sheldon WI   352   2019-12-06   
715-517 A Holcombe WI HWKNWIXA2MD  352      
715-517 1 Holcombe WI   352   2019-01-06   
715-609 4 Ladysmith WI   352   2019-12-06   
715-644 9 Stanley WI   352   2025-09-20   
715-667 7 Boyd WI   352   2021-12-19   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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