Local Calling Guide

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

NXX: 425

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-425 A Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-425 0 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-10-08   
331-425 1 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-10-08   
331-425 2 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-05-06   
331-425 3 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-05-06   
331-425 4 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-05-21   
331-425 5 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-05-21   
331-425 6 Aurora IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-12   
331-425 7 Aurora IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-12   
331-425 8 Aurora IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-04-26   
331-425 9 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-10-08   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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