Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 990

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-990 A Wood River IL STLSMOWQDS2  224C ONVOY, LLC 520      
618-990 0 Wood River IL   6529 T-MOBILE USA, INC. 520   2023-10-17   
618-990 2 Wood River IL   224C ONVOY, LLC 520   2023-10-16   
618-990 3 Wood River IL   224C ONVOY, LLC 520   2024-03-07   
618-990 4 Wood River IL   224C ONVOY, LLC 520   2024-03-07   
618-990 8 Wood River IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2023-12-16   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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