Local Calling Guide

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NPA: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

NXX: 208

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-208 A Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-208 4 Aurora IL   145J TERRA NOVA TELECOM INC. 358   2023-11-13   
331-208 5 Aurora IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-01-07   
331-208 6 Aurora IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2012-11-28   
331-208 7 Aurora IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2012-11-28   
331-208 8 Aurora IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2013-03-07   
331-208 9 Aurora IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-04-19   

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

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