Local Calling Guide

Area code/prefix search

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

NXX: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
630-550 A Bartlett IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-09   
630-550 0 Bartlett IL   6529 T-MOBILE USA, INC. 358   2005-05-12   
630-550 1 Bartlett IL   6529 T-MOBILE USA, INC. 358   2004-06-15   
630-550 2 Bartlett IL   6529 T-MOBILE USA, INC. 358   2004-08-30   
630-550 3 Bartlett IL   6529 T-MOBILE USA, INC. 358   2005-02-21   
630-550 4 Bartlett IL   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2004-10-18   
630-550 5 Bartlett IL   829J PAETEC ITEL, LLC 358      
630-550 6 Bartlett IL   6529 T-MOBILE USA, INC. 358   2005-06-10   
630-550 7 Bartlett IL   6529 T-MOBILE USA, INC. 358   2005-06-25   
630-550 8 Bartlett IL   6529 T-MOBILE USA, INC. 358   2005-07-08   
630-550 9 Bartlett IL   6529 T-MOBILE USA, INC. 358   2005-09-24   

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

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