Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-375 A De Kalb IL DKLBILRS3MD  6265 UNITED STATES CELLULAR - IL 364      
815-375 0 De Kalb IL DKLBILRS3MD  6265 UNITED STATES CELLULAR - IL 364      
815-375 1 De Kalb IL DKLBILRS3MD  6265 UNITED STATES CELLULAR - IL 364      
815-375 2 De Kalb IL DKLBILRS3MD  6265 UNITED STATES CELLULAR - IL 364      
815-375 3 De Kalb IL DKLBILRS3MD  6265 UNITED STATES CELLULAR - IL 364      
815-375 4 De Kalb IL DKLBILRSPMD  5562 METROPCS, INC. 364      
815-375 5 De Kalb IL DKLBILXAX8X  318J COMCAST IP PHONE, LLC 364      
815-375 6 De Kalb IL DKLBILXAXEX  624H ONVOY SPECTRUM, LLC 364      
815-375 7 De Kalb IL DKLBILXAXEX  624H ONVOY SPECTRUM, LLC 364      
815-375 8 De Kalb IL DKLBILXAXBX  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 364      
815-375 9 De Kalb IL DKLBILRS3MD  6265 UNITED STATES CELLULAR - IL 364      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.