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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 520K TDS METROCOM, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
920-913 A Fond du Lac WI MILWWI12XBY  356      
920-940 6 Green Bay WI APPLWI01X0Y  350   2013-10-07   
980-481 A Mooresville NC MRVINCBT0MD  422   2025-09-22   
980-481 2 Mooresville NC MRVINCBT0MD  422   2025-09-22   
980-840 4 Troutman NC MRVINCBT0MD  422   2025-09-22   
986-204 1 Caldwell ID MRDOIDEO1MD  652   2022-02-01   
986-206 4 Nampa ID MRDOIDEO1MD  652   2022-02-01   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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