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.

Switch: SBNDIN01X9Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
574-895 A South Bend IN 506J TWILIO INTERNATIONAL, INC. 332      
574-895 8 South Bend IN 506J TWILIO INTERNATIONAL, INC. 332   2022-02-05   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.