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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-400 A South Bend IN SBNDIN01XOX  874F MCC TELEPHONY OF THE MID-WEST, LLC - IN 332      
574-400 0 South Bend IN SBNDIN01XVX  930B COMCAST PHONE OF CENTRAL INDIANA, LLC - IN 332   2011-08-22   
574-400 1 South Bend IN SBNDIN01XOX  874F MCC TELEPHONY OF THE MID-WEST, LLC - IN 332   2011-02-10   
574-400 2 South Bend IN SBNDIN053MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332   2012-04-14   
574-400 3 South Bend IN MSHWINBWCM2  6725 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 332   2011-09-23   
574-400 4 South Bend IN SBNDIN056MD  7314 TELEPORT COMMUNICATIONS AMERICA, LLC - IN 332   2011-03-29   
574-400 5 South Bend IN SBNDIN01XHX  105F BANDWIDTH.COM CLEC, LLC - IN 332   2011-06-02   
574-400 6 South Bend IN SBNDIN01XHX  105F BANDWIDTH.COM CLEC, LLC - IN 332   2011-06-02   
574-400 7 South Bend IN SBNDIN01XHX  105F BANDWIDTH.COM CLEC, LLC - IN 332   2011-06-02   
574-400 8 South Bend IN SBNDIN01XHX  105F BANDWIDTH.COM CLEC, LLC - IN 332   2011-06-02   
574-400 9 South Bend IN SBNDIN01XIX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 332   2011-08-23   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.