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: 247

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-247 A Naperville IL CHCGILWUIMD  197D VONAGE AMERICA LLC 358      
331-247 0 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 1 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 2 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 3 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 4 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 5 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 6 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 7 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 8 Naperville IL   197D VONAGE AMERICA LLC 358   2019-01-12   
331-247 9 Naperville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2019-01-18   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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