Local Calling Guide

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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-288 7 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-288 8 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-27   
312-288 9 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-07-08   
312-289 A Chicago Zone 01-Calumet IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
312-290 A Chicago Zone 01-Calumet IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
312-291 A Chicago Zone 01-Wabash IL CHCGILWBDS2  9329 AMERITECH ILLINOIS 358      
312-291 0 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-291 1 Chicago Zone 01-Wabash IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-17   
312-291 2 Chicago Zone 01-Wabash IL   5917 FIRST COMMUNICATIONS, LLC 358   2010-03-01   
312-291 3 Chicago Zone 01-Wabash IL   7056 XO ILLINOIS, INC. 358   2005-12-12   
312-291 4 Chicago Zone 01-Wabash IL   7056 XO ILLINOIS, INC. 358   2005-12-12   
312-291 5 Chicago Zone 01-Wabash IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2006-01-20   
312-291 6 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-06-23   
312-291 7 Chicago Zone 01-Wabash IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2006-05-25   
312-291 8 Chicago Zone 01-Wabash IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2011-06-05   
312-291 9 Chicago Zone 01-Wabash IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2010-06-09   
312-292 A Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358      
312-292 0 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-07-16   
312-292 1 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-07-16   
312-292 2 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2011-11-28   
312-292 3 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2011-11-28   
312-292 4 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2011-11-28   
312-292 5 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2011-11-05   
312-292 6 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2011-11-04   
312-292 7 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2011-11-04   
312-292 8 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2011-11-04   
312-292 9 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-11-28   
312-293 A Chicago Zone 01-Wabash IL CHCGILWBDS2  9329 AMERITECH ILLINOIS 358      
312-294 A Chicago Zone 01-Wabash IL CHCGILWBDS3  9329 AMERITECH ILLINOIS 358      
312-295 A La Grange IL BURGILAJCM0  6630 USA MOBILITY WIRELESS, INC. 358      
312-296 A Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358      
312-297 A Chicago Zone 01-Lakeshore IL CHCGILLRDS0  9329 AMERITECH ILLINOIS 358      
312-298 A Chicago Zone 01-Calumet IL NPVLILBGRP0  667E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 358      
312-298 0 Chicago Zone 01-Calumet IL   667E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 358      
312-298 1 Chicago Zone 01-Calumet IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2009-01-28   
312-298 2 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2001-06-12   
312-298 3 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2001-06-12   
312-298 4 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2001-06-12   
312-298 5 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2001-06-12   
312-298 6 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2001-06-12   
312-298 7 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2001-06-12   
312-298 8 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2001-06-12   
312-298 9 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-02-25   
312-299 A Chicago Zone 01-Wabash IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
312-300 A Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-300 0 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2018-10-25   
312-300 1 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2012-02-21   
312-300 2 Chicago Zone 01-Calumet IL   2491 CBEYOND COMMUNICATIONS, LLC - IL 358   2012-02-21   
312-300 3 Chicago Zone 01-Calumet IL   2491 CBEYOND COMMUNICATIONS, LLC - IL 358   2012-02-21   
312-300 4 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-25   

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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