Local Calling Guide

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

NXX: 268

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-268 A Sugar Grove IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-268 0 Sugar Grove IL   515J IP HORIZON LLC 358   2021-06-27   
331-268 1 Sugar Grove IL   224C ONVOY, LLC 358   2021-03-19   
331-268 2 Sugar Grove IL   224C ONVOY, LLC 358   2021-03-19   
331-268 3 Sugar Grove IL   224C ONVOY, LLC 358   2021-03-19   
331-268 4 Sugar Grove IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2021-12-04   
331-268 5 Sugar Grove IL   6529 T-MOBILE USA, INC. 358   2021-03-18   
331-268 6 Sugar Grove IL   6529 T-MOBILE USA, INC. 358   2021-03-18   
331-268 7 Sugar Grove IL   6529 T-MOBILE USA, INC. 358   2021-03-18   
331-268 8 Sugar Grove IL   6529 T-MOBILE USA, INC. 358   2021-03-18   
331-268 9 Sugar Grove IL   6529 T-MOBILE USA, INC. 358   2021-03-18   

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

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