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.
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NPA: 219 [Rate centres in NPA 219] [Dial plan for NPA 219]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
219-403 A Cedar Lake IN CHCGIL24DS6  097D ONVOY, LLC - IN 358   2025-02-03   
219-403 0 Cedar Lake IN CHCGIL24DS6  097D ONVOY, LLC - IN 358   2025-02-03   
219-403 8 Cedar Lake IN CHCGILWBXUZ  732J NUSO, LLC 358   2025-02-04   
219-403 9 Cedar Lake IN CHCGILWBXUZ  732J NUSO, LLC 358   2025-02-04   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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