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: 449

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-449 A Pierz MN LTFLMNLF5MD  6701 AERIAL COMMUNICATIONS, INC. 626      
320-449 6 Pierz MN STCDMNTOXUX  8405 TELEPORT COMMUNICATIONS AMERICA, LLC - MN 626   2022-09-19   
320-449 7 Pierz MN STCDMNTOX0X  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626   2023-02-25   
320-449 9 Pierz MN LTFLMNLF5MD  6701 AERIAL COMMUNICATIONS, INC. 626   2021-07-05   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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