Local Calling Guide

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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 276

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-276 A Crystal Lake IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-276 0 Crystal Lake IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-276 1 Crystal Lake IL   5562 METROPCS, INC. 358   2006-09-10   
815-276 2 Crystal Lake IL   5562 METROPCS, INC. 358   2004-06-05   
815-276 3 Crystal Lake IL   5562 METROPCS, INC. 358   2003-05-11   
815-276 4 Crystal Lake IL   5562 METROPCS, INC. 358   2003-08-16   
815-276 5 Crystal Lake IL   5562 METROPCS, INC. 358   2003-08-16   
815-276 6 Crystal Lake IL   5562 METROPCS, INC. 358   2003-08-16   
815-276 7 Crystal Lake IL   5562 METROPCS, INC. 358   2003-03-02   
815-276 8 Crystal Lake IL   5562 METROPCS, INC. 358   2003-08-16   
815-276 9 Crystal Lake IL   6529 T-MOBILE USA, INC. 358   2006-06-15   

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

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