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: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-544 A South Bend IN SBNDIN13HMD  939H COMMIO LLC 332      
574-544 2 South Bend IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 332   2021-03-01   
574-544 4 South Bend IN SBNDIN13HMD  939H COMMIO LLC 332   2019-06-29   
574-544 5 South Bend IN SBNDIN01X6X  097D ONVOY, LLC IN 332   2020-11-19   
574-544 6 South Bend IN SBNDIN01X6X  097D ONVOY, LLC IN 332   2020-11-19   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.