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: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-551 A Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-551 0 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-551 1 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-551 2 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-551 3 Lombard IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358      
331-551 4 Lombard IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358      
331-551 5 Lombard IL   460K FIRST COMMUNICATIONS, LLC 358      
331-551 6 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
331-551 7 Lombard IL CHCGIL24DS6  224C ONVOY, LLC 358      
331-551 8 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
331-551 9 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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