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: 685

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-685 A Cold Spring MN CLSPMNCBRS6  9631 QWEST CORPORATION 626      
320-685 0 Cold Spring MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626   2004-12-13   
320-685 1 Cold Spring MN   184D ONVOY, LLC - MN 626   2005-09-10   
320-685 2 Cold Spring MN   9631 QWEST CORPORATION 626      
320-685 3 Cold Spring MN   9631 QWEST CORPORATION 626      
320-685 4 Cold Spring MN   9631 QWEST CORPORATION 626      
320-685 5 Cold Spring MN   9631 QWEST CORPORATION 626      
320-685 6 Cold Spring MN   9631 QWEST CORPORATION 626      
320-685 7 Cold Spring MN   9631 QWEST CORPORATION 626      
320-685 8 Cold Spring MN   9631 QWEST CORPORATION 626      
320-685 9 Cold Spring MN   9631 QWEST CORPORATION 626      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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