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: 574 [Rate centres in NPA 574] [Dial plan for NPA 574]

NXX: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-301 A Bremen IN SBNDIN01JMD  6664 SPRINT SPECTRUM L.P. 332      
574-301 0 Bremen IN WKTPIN010MD  4117 FBN INDIANA, INC.-IN 332   2004-04-11   
574-301 1 Bremen IN SBNDIN01XHX  105F BANDWIDTH.COM CLEC, LLC - IN 332   2015-03-02   
574-301 2 Bremen IN SBNDIN01JMD  6664 SPRINT SPECTRUM L.P. 332   2013-11-12   
574-301 3 Bremen IN SBNDIN01XHX  105F BANDWIDTH.COM CLEC, LLC - IN 332   2017-06-11   
574-301 4 Bremen IN SBNDIN01XHX  105F BANDWIDTH.COM CLEC, LLC - IN 332   2017-11-09   
574-301 6 Bremen IN SBNDIN05X5X  7314 TELEPORT COMMUNICATIONS AMERICA, LLC - IN 332   2017-01-05   
574-301 8 Bremen IN SBNDIN01XZX  073H TELNYX LLC 332   2020-06-11   
574-301 9 Bremen IN SBNDIN01JMD  6664 SPRINT SPECTRUM L.P. 332   2003-05-23   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.