Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

NXX: 409

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-409 A Spicer MN   792K CHARTER IP ENABLED SERVICES, LLC 626   2025-03-18   
320-409 0 Spicer MN   184D ONVOY, LLC - MN 626   2023-09-03   
320-409 1 Spicer MN   792K CHARTER IP ENABLED SERVICES, LLC 626      
320-409 2 Spicer MN   184D ONVOY, LLC - MN 626   2021-03-11   
320-409 3 Spicer MN   184D ONVOY, LLC - MN 626   2021-04-07   
320-409 4 Spicer MN   184D ONVOY, LLC - MN 626   2020-05-26   
320-409 5 Spicer MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626   2021-02-02   
320-409 6 Spicer MN   8405 TELEPORT COMMUNICATIONS AMERICA, LLC - MN 626   2022-06-06   
320-409 7 Spicer MN   2629 FEDERATED TELEPHONE COOPERATIVE - MN 626   2024-01-19   
320-409 8 Spicer MN   624H ONVOY SPECTRUM, LLC 626   2024-12-19   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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