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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-313 7 Ottawa IL 145J TERRA NOVA TELECOM INC. 358   2023-11-15   
815-317 7 Crescent City IL 145J TERRA NOVA TELECOM INC. 358   2023-08-05   
815-331 9 McHenry IL 145J TERRA NOVA TELECOM INC. 358   2022-12-17   
815-424 4 Elwood IL 145J TERRA NOVA TELECOM INC. 358   2022-11-05   
815-769 2 Seneca IL 145J TERRA NOVA TELECOM INC. 358   2022-10-07   
815-770 1 Harvard IL 145J TERRA NOVA TELECOM INC. 358   2022-10-07   
815-783 4 Gilman IL 145J TERRA NOVA TELECOM INC. 358   2023-11-15   
815-923 7 Union IL 145J TERRA NOVA TELECOM INC. 358   2023-11-13   
847-443 7 Fox Lake IL 145J TERRA NOVA TELECOM INC. 358   2022-10-07   
847-449 9 Cary IL 145J TERRA NOVA TELECOM INC. 358   2023-11-13   
847-461 2 Winnetka IL 145J TERRA NOVA TELECOM INC. 358   2022-10-17   
847-515 6 Huntley IL 145J TERRA NOVA TELECOM INC. 358   2023-06-24   
847-518 1 Park Ridge IL 145J TERRA NOVA TELECOM INC. 358   2023-04-29   
847-574 9 Lake Forest IL 145J TERRA NOVA TELECOM INC. 358   2022-10-02   
847-883 1 Wheeling IL 145J TERRA NOVA TELECOM INC. 358   2023-04-29   
847-919 2 Northbrook IL 145J TERRA NOVA TELECOM INC. 358   2022-11-02   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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