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: 218

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-218 A Wheaton IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-218 0 Wheaton IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-17   
331-218 1 Wheaton IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-17   
331-218 2 Wheaton IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-17   
331-218 3 Wheaton IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-17   
331-218 4 Wheaton IL   318J COMCAST IP PHONE, LLC 358   2014-04-03   
331-218 5 Wheaton IL   6529 T-MOBILE USA, INC. 358   2014-02-21   
331-218 6 Wheaton IL   6529 T-MOBILE USA, INC. 358   2014-02-21   
331-218 7 Wheaton IL   6529 T-MOBILE USA, INC. 358   2014-02-21   
331-218 8 Wheaton IL   6529 T-MOBILE USA, INC. 358   2013-09-07   
331-218 9 Wheaton IL   6529 T-MOBILE USA, INC. 358   2013-09-07   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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