Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

NXX: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-284 A Bartlett IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-284 0 Bartlett IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2022-10-01   
331-284 1 Bartlett IL CHCGILWUXMD  490J DISH WIRELESS, LLC 358   2023-05-25   
331-284 3 Bartlett IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-08-12   
331-284 4 Bartlett IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-08-12   
331-284 5 Bartlett IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-08-12   
331-284 6 Bartlett IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-08-12   
331-284 7 Bartlett IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-08-12   
331-284 8 Bartlett IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-05-02   
331-284 9 Bartlett IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-05-02   

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

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