Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Tamms, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-747 A TMMSILTMRS0  9329 ILLINOIS BELL TEL CO 362      
618-747 0 HRBGILCBDS0  9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 362   2003-02-06   
618-747 1 CRDLILXEXJX  073H TELNYX LLC 362   2020-07-20   
618-747 2 TMMSILTMRS0  9329 ILLINOIS BELL TEL CO 362      
618-747 3 CRDLILXEX8X  224C ONVOY, LLC 362   2019-09-08   
618-747 4   145J TERRA NOVA TELECOM INC. 362   2025-08-01   
618-747 5   516C AT&T CORP. 362   2025-10-06   
618-747 7 CRDLILXEX8X  224C ONVOY, LLC 362   2018-10-01   
618-747 9 TMMSILTMRS0  9329 ILLINOIS BELL TEL CO 362      
618-891 A CRDLILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362      
618-891 0 CRDLILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362      
618-891 1 CRDLIL13AMD  495J STRATUS NETWORKS 362   2020-12-19   
618-891 2 CRDLILXEXYX  624H ONVOY SPECTRUM, LLC 362   2023-07-05   
618-891 4 CRDLILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362   2004-07-02   
618-891 7 CRDLILXEX8X  224C ONVOY, LLC 362   2021-02-12   
618-891 9 CRDLILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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