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: 872 [Rate centres in NPA 872] [Dial plan for NPA 872]

NXX: 384

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
872-384 A Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2025-07-03   
872-384 0 Chicago Zone 02-Edgewater IL   616J LEAP TELECOM, LLC 358   2025-07-06   
872-384 1 Chicago Zone 02-Edgewater IL   616J LEAP TELECOM, LLC 358   2025-07-06   
872-384 8 Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2025-07-03   
872-384 9 Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2025-07-03   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.