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.

NPA: 218 [Rate centres in NPA 218] [Dial plan for NPA 218]

NXX: 712

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
218-712 A Warren MN FARGNDBCX7X  184D ONVOY, LLC - MN 636      
218-712 0 Warren MN   073H TELNYX LLC 636   2021-03-26   
218-712 1 Warren MN   184D ONVOY, LLC - MN 636   2021-02-04   
218-712 2 Warren MN   184D ONVOY, LLC - MN 636   2021-02-04   
218-712 3 Warren MN   184D ONVOY, LLC - MN 636   2021-05-24   
218-712 4 Warren MN   105J GARDEN VALLEY TELEPHONE COMPANY - MN 636   2021-05-11   
218-712 6 Warren MN   8405 TELEPORT COMMUNICATIONS AMERICA, LLC - MN 636   2022-12-14   
218-712 7 Warren MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 636   2022-12-03   
218-712 8 Warren MN   939H COMMIO, LLC 636   2023-06-01   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.