Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-899 A Lombard IL CHCGILWURMD  965H FRACTEL, LLC 358      
331-900 A Elmhurst IL CHCGILWURMD  965H FRACTEL, LLC 358      
331-901 A Geneva IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
331-903 A Downers Grove IL CHCGILCLXOX  516C AT&T CORP. 358      
331-946 A Glen Ellyn IL CHCGILWURMD  965H FRACTEL, LLC 358      
331-979 A Elmhurst IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
331-980 A Aurora IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358      
331-998 A Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
331-999 A Oswego IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      

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

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