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: 449

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-449 A Sparta IL CRDLILXEXRX  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362      
618-449 0 Sparta IL CRDLIL310MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 362   2010-05-09   
618-449 1 Sparta IL CRDLILXEXRX  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2017-01-11   
618-449 2 Sparta IL   145J TERRA NOVA TELECOM INC. 362   2026-04-30   
618-449 4 Sparta IL   5562 METROPCS, INC. 362   2026-06-20   
618-449 8 Sparta IL   6529 T-MOBILE USA, INC. 362   2026-07-09   
618-449 9 Sparta IL   145J TERRA NOVA TELECOM INC. 362   2025-08-02   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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