Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Mont du Lac, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
715-636 A DLTHMNDBRS6  9631 QWEST CORPORATION 624      
715-636 0   225C ONVOY, LLC - WI 624   2017-05-01   
715-636 1   9631 QWEST CORPORATION 624      
715-636 2   9631 QWEST CORPORATION 624      
715-636 3   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 624      
715-636 4   225C ONVOY, LLC - WI 624   2020-03-23   
715-636 5   225C ONVOY, LLC - WI 624   2020-03-23   
715-636 6   225C ONVOY, LLC - WI 624   2020-06-15   
715-636 7   225C ONVOY, LLC - WI 624   2020-06-15   
715-636 8   225C ONVOY, LLC - WI 624   2021-04-11   
715-636 9   9631 QWEST CORPORATION 624      
715-992 A DLTHMNMEX7X  225C ONVOY, LLC - WI 624      
715-992 0   624H ONVOY SPECTRUM, LLC 624   2024-06-08   
715-992 2   145J TERRA NOVA TELECOM INC. 624   2025-04-10   
715-992 8   225C ONVOY, LLC - WI 624   2021-09-12   

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

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