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: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-399 A Elkhart IN SBNDIN01XIX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 332      
574-399 0 Elkhart IN SBNDIN01X4Y  6725 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 332   2023-12-17   
574-399 1 Elkhart IN   097D ONVOY, LLC - IN 332   2024-02-25   
574-399 2 Elkhart IN   097D ONVOY, LLC - IN 332   2024-02-25   
574-399 3 Elkhart IN   097D ONVOY, LLC - IN 332   2024-02-25   
574-399 4 Elkhart IN   6725 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 332   2024-04-05   
574-399 8 Elkhart IN SBNDIN01XIX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 332   2023-12-16   
574-399 9 Elkhart IN SBNDIN01XIX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 332   2023-12-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.