Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-534 2 Frankfort IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-07-01   
815-534 4 Frankfort IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-01-13   
815-534 9 Frankfort IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-27   
815-550 A Grant Park IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-550 1 Grant Park IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-550 2 Grant Park IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-550 8 Grant Park IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-550 9 Grant Park IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-556 A Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-556 0 Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-570 A Sandwich IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-570 4 Sandwich IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-10-14   
815-570 5 Sandwich IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-16   
815-572 A Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-572 0 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-572 4 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-03-09   
815-572 5 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-572 6 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-01-06   
815-572 8 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-572 9 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-573 A Kankakee IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-573 0 Kankakee IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-573 9 Kankakee IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-585 A Morris IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-585 4 Morris IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-587 A Ottawa IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-587 0 Ottawa IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-587 1 Ottawa IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-22   
815-600 7 Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-12-08   
815-600 8 Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-12-08   
815-605 A Grant Park IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-605 9 Grant Park IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-627 4 Paw Paw IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-09-04   
815-642 A Minooka IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 0 Minooka IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 1 Minooka IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 4 Minooka IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 8 Minooka IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-642 9 Minooka IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-662 A Momence IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-662 4 Momence IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-669 A McHenry IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-669 1 McHenry IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-12-05   
815-669 4 McHenry IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-669 5 McHenry IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-03-15   
815-671 A Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-671 4 Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-676 A Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-676 0 Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-12-05   
815-676 1 Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-13   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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