Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chicago Zone 06-Lafayette, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-247 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-254 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-346 A CHCHILLEDS0  8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 0   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 1   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 2   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 3   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 4   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 5   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 6   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 7   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-346 8   8950 ALLEGIANCE TELECOM, INC. - IL 358      
773-376 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-475 A CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-475 0   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-475 1   6529 T-MOBILE USA, INC. 358   2008-11-10   
773-475 2   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-475 3   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-475 4   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-475 5   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-475 6   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358      
773-475 7   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358      
773-475 8   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-475 9   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-523 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-534 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-535 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-553 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-553 0   6664 SPRINT SPECTRUM L.P. 358   2006-03-03   
773-553 1   9329 AMERITECH ILLINOIS 358      
773-553 2   9329 AMERITECH ILLINOIS 358      
773-553 3   9329 AMERITECH ILLINOIS 358      
773-553 4   9329 AMERITECH ILLINOIS 358      
773-553 5   9329 AMERITECH ILLINOIS 358      
773-553 6   9329 AMERITECH ILLINOIS 358      
773-553 7   9329 AMERITECH ILLINOIS 358      
773-553 8   9329 AMERITECH ILLINOIS 358      
773-553 9   6664 SPRINT SPECTRUM L.P. 358   2006-04-15   
773-579 A CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-635 A CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
773-635 0   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
773-635 1   4604 FIRST COMMUNICATIONS LLC - IL 358   2014-09-15   
773-635 2   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-635 3   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-635 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-635 5   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-635 6   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-635 7   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-635 8   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-635 9   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      

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Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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