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.

NPA: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-995 A Svea MN SVEAMNXSRS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 626      
320-999 A Sandstone MN MPLSMNCDX4X  145J TERRA NOVA TELECOM INC. 628      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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