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.

Millersburg (Elkhart), IN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
574-330 A SBNDIN053MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332      
574-330 0   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332      
574-330 1   097D ONVOY, LLC - IN 332   2021-07-27   
574-330 3   097D ONVOY, LLC - IN 332   2021-09-04   
574-330 4   145J TERRA NOVA TELECOM INC. 332   2025-06-06   
574-330 5   318J COMCAST IP PHONE, LLC 332   2020-06-26   
574-330 7   508J CENTURYLINK COMMUNICATIONS, LLC 332   2014-04-17   
574-330 9   105F BANDWIDTH.COM CLEC, LLC - IN 332   2020-04-10   
574-362 A WKTPIN010MD  4117 FBN INDIANA, INC. - IN 332      
574-641 A NWPRINXADS1  4169 COMMUNICATIONS VENTURE CORP DBA INDIGITAL TELECOM 332      
574-642 A MLBGINXARS1  0832 BRIGHTSPEED OF INDIANA, LLC 332      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.