Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Alpena, MI

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
989-657 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-880 A ALPEMIXG9MD  116F PENINSULA FIBER NETWORK, LLC - MI 344      
989-880 0   116F PENINSULA FIBER NETWORK, LLC - MI 344   2019-02-21   
989-880 2   543C ONVOY, LLCV - MI 344   2022-09-30   
989-880 3   543C ONVOY, LLCV - MI 344   2022-09-30   
989-884 A SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344      
989-884 0   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344      
989-884 1   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2006-02-09   
989-884 2   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2006-02-09   
989-884 3   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2006-06-26   
989-884 4   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2007-02-09   
989-884 5   543C ONVOY, LLCV - MI 344   2023-07-08   
989-884 6   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 344   2013-05-15   
989-884 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2016-09-01   
989-884 8   543C ONVOY, LLCV - MI 344   2015-09-14   
989-884 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2016-09-01   
989-916 A GRYLMIAT7MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-916 2   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2021-03-26   
989-916 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2015-06-17   
989-916 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2015-06-17   
989-916 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-916 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-916 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2011-04-22   
989-916 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2010-11-15   
989-916 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      

<< 1 2

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.