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: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-278 A Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-278 0 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2022-06-14   
331-278 1 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2022-06-14   
331-278 2 Aurora IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2021-11-12   
331-278 3 Aurora IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2021-11-12   
331-278 4 Aurora IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2021-11-12   
331-278 5 Aurora IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2021-11-12   
331-278 6 Aurora IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2021-11-12   
331-278 7 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2022-02-03   
331-278 8 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2021-09-27   
331-278 9 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2021-09-27   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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