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: 492

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
218-492 A Warba MN WARBMNXARS0  1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 624      
218-492 0 Warba MN   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 624      
218-492 1 Warba MN   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 624      
218-492 2 Warba MN   073H TELNYX LLC 624   2020-07-23   
218-492 3 Warba MN   184D ONVOY, LLC - MN 624   2021-03-08   
218-492 4 Warba MN   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 624      
218-492 5 Warba MN   508J CENTURYLINK COMMUNICATIONS, LLC 624   2016-01-15   
218-492 6 Warba MN   4814 PAUL BUNYAN RURAL TELEPHONE COOP. 624   2014-05-12   
218-492 7 Warba MN   184D ONVOY, LLC - MN 624   2014-11-06   
218-492 8 Warba MN   184D ONVOY, LLC - MN 624   2016-07-29   
218-492 9 Warba MN   1123 CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 624      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.