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: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-258 A Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358      
331-258 0 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2019-09-07   
331-258 1 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-11-17   
331-258 2 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-06-07   
331-258 3 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-11-17   
331-258 4 Aurora IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2020-01-22   
331-258 5 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2020-01-15   
331-258 6 Aurora IL CHCGILWUIMD  197D VONAGE AMERICA LLC 358   2020-10-12   
331-258 7 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-01-14   
331-258 8 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2020-01-15   
331-258 9 Aurora IL CHCGILWUIMD  197D VONAGE AMERICA LLC 358   2020-10-12   

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

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