Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chicago Zone 05-Merrimac, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-887 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-887 0   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-02-28   
773-887 1   515J IP HORIZON LLC 358   2013-05-05   
773-887 2   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-26   
773-887 3   318J COMCAST IP PHONE, LLC 358   2007-01-28   
773-887 4   318J COMCAST IP PHONE, LLC 358   2007-01-28   
773-887 5   318J COMCAST IP PHONE, LLC 358   2007-01-28   
773-887 6   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-26   
773-887 7   829J PAETEC ITEL, LLC 358   2009-10-20   
773-887 8   5447 ACCESS ONE, INC. - IL 358   2013-09-22   
773-887 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-889 A CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      

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

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