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: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 752

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-752 A Redgranite WI GNBYWIEL9MD  516J TON80 COMMUNICATIONS, LLC 350      
920-752 0 Redgranite WI GNBYWI01XHX  624H ONVOY SPECTRUM, LLC 350   2024-10-28   
920-752 9 Redgranite WI GNBYWIEL9MD  516J TON80 COMMUNICATIONS, LLC 350   2022-04-15   

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

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