Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chicago Zone 03-Newcastle, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
708-457 A CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-457 0 CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-457 1 CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-457 2 CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-457 3 CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-457 5 CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-457 6 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2009-11-02   
708-457 7 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-07-02   
708-457 8 CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-457 9   145J TERRA NOVA TELECOM INC. 358   2021-01-15   
708-667 A CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-667 0 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2012-06-29   
708-667 1 CHCGIL24DS6  224C ONVOY, LLC 358   2010-07-16   
708-667 2 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-01   
708-667 3 CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
708-667 4 DWGVILMCPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2006-08-25   
708-667 5 DWGVILMCPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2006-08-25   
708-667 6 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-17   
708-667 7 CHCGIL24DS6  224C ONVOY, LLC 358   2005-09-25   
708-667 8 CHCGIL24DS6  224C ONVOY, LLC 358   2005-09-25   
708-667 9 CHCGIL24DS6  224C ONVOY, LLC 358   2012-11-02   
708-867 A CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
773-272 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-272 0 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-272 1 ELGNILOTGT5  5562 METROPCS, INC. 358   2004-03-19   
773-272 2 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-06-20   
773-272 3 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-272 4 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-272 5 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-05-28   
773-272 6 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-05-28   
773-272 7 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-06-20   
773-272 8 ELGNILOTGT5  5562 METROPCS, INC. 358   2005-04-26   
773-272 9 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-380 A PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 0 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 1 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 2 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 3 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 4 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 5 BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2024-09-08   
773-380 6 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 7 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 8 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-380 9 BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2019-10-30   
773-399 A PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-399 0 SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-399 1 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-399 2 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-399 3 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-399 4 PRRGILXLDS0  9329 ILLINOIS BELL TEL CO 358      

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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