Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 630 [Rate centres in NPA 630] [Dial plan for NPA 630]

NXX: 392

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-392 A Naperville IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
630-392 0 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-03-23   
630-392 1 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-03-23   
630-392 2 Naperville IL   460K FIRST COMMUNICATIONS, LLC 358   2004-03-23   
630-392 3 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-03-23   
630-392 4 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-03-23   
630-392 5 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-04-04   
630-392 6 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-03-22   
630-392 7 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-03-22   
630-392 8 Naperville IL   6529 T-MOBILE USA, INC. 358   2004-03-22   
630-392 9 Naperville IL   6529 T-MOBILE USA, INC. 358   2005-05-07   

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

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