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.

Grayling, MI

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
989-915 1 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344      
989-915 2 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344      
989-915 3 SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2015-04-23   
989-915 4 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2011-04-06   
989-915 5 SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2017-08-17   
989-915 6 SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-07   
989-915 7 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2006-12-20   
989-915 8 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2006-12-20   
989-915 9 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344      

<< 1 2

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.