Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 434

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-434 A Carbondale IL CRDLILABSMD  6529 T-MOBILE USA, INC. 362      
618-434 0 Carbondale IL   6529 T-MOBILE USA, INC. 362   2009-02-15   
618-434 1 Carbondale IL   6529 T-MOBILE USA, INC. 362   2021-10-11   
618-434 2 Carbondale IL   6529 T-MOBILE USA, INC. 362   2021-10-11   
618-434 3 Carbondale IL   6529 T-MOBILE USA, INC. 362   2021-10-11   
618-434 4 Carbondale IL   6529 T-MOBILE USA, INC. 362   2022-05-13   
618-434 5 Carbondale IL   6529 T-MOBILE USA, INC. 362   2017-08-18   
618-434 6 Carbondale IL   6529 T-MOBILE USA, INC. 362   2014-09-19   
618-434 7 Carbondale IL   6529 T-MOBILE USA, INC. 362   2014-09-19   
618-434 8 Carbondale IL   6529 T-MOBILE USA, INC. 362   2013-12-05   
618-434 9 Carbondale IL   6529 T-MOBILE USA, INC. 362   2009-02-15   

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

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