Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Augusta, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
269-457 A GDRPMIBL40Z  318J COMCAST IP PHONE, LLC 348      
269-457 0   318J COMCAST IP PHONE, LLC 348   2009-07-29   
269-457 4   624H ONVOY SPECTRUM, LLC 348   2021-06-18   
269-457 5   543C ONVOY, LLCV - MI 348   2020-06-08   
269-457 6   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2024-09-10   
269-457 7   543C ONVOY, LLCV - MI 348   2020-11-27   
269-457 8   543C ONVOY, LLCV - MI 348   2020-11-27   
269-731 A AGSTMIXJPS0  0672 COMMUNICATIONS CORP. OF MI 348      

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

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