Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 872 [Rate centres in NPA 872] [Dial plan for NPA 872]

NXX: 799

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
872-799 A Chicago Zone 10-Beverly IL   321J HD CARRIER LLC 358   2025-11-07   
872-799 0 Chicago Zone 10-Beverly IL   224C ONVOY, LLC 358   2026-01-05   
872-799 1 Chicago Zone 10-Beverly IL   224C ONVOY, LLC 358   2026-03-26   
872-799 8 Chicago Zone 10-Beverly IL   224C ONVOY, LLC 358   2025-11-28   
872-799 9 Chicago Zone 10-Beverly IL   321J HD CARRIER LLC 358   2025-11-07   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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