Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chicago Zone 09-Mitchell, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-449 A CHCGIL24SMD  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-449 0 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-449 1 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-449 2 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-07-16   
773-449 3 CHCGIL24SMD  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-449 4 CHCGIL24SMD  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-449 5 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2004-01-21   
773-449 6 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2006-12-11   
773-449 7 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-449 8 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-449 9 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-17   
773-646 A CHCGILMHRS0  9329 ILLINOIS BELL TEL CO 358      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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