Local Calling Guide

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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   2009-01-08   
331-551 1 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-08   
331-551 2 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-08   
331-551 3 Lombard IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358   2014-11-03   
331-551 4 Lombard IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358   2014-11-03   
331-551 5 Lombard IL CHCGIL24DS7  5917 FIRST COMMUNICATIONS, LLC 358   2010-01-29   
331-551 6 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-06-25   
331-551 7 Lombard IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-07-16   
331-551 8 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-10-30   
331-551 9 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-03-19   

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

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