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.
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Switch: CHCGILNEXIX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-660 4 Lockport IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
815-755 7 Seneca IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-15   
815-771 2 Ashkum IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
815-781 5 Chebanse IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
815-783 1 Gilman IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
815-785 7 Watseka IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-15   
815-797 7 Somonauk IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-15   
815-884 5 Earlville IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
815-918 3 Clifton IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
815-974 7 Hebron IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
815-984 3 Wellington IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-15   
847-320 5 Lake Zurich IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-15   
847-825 9 Park Ridge IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-16   
872-262 3 Chicago Zone 09-South Chicago IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
872-277 3 Chicago Zone 05-Austin IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
872-469 9 Chicago Zone 03-Kildare IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
872-678 7 Chicago Zone 11-O'Hare IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-18   
872-732 7 Chicago Zone 08-Portsmouth IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
872-758 7 Chicago Zone 10-Beverly IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
872-877 4 Chicago Zone 04-Humboldt IL 506J TWILIO INTERNATIONAL, INC. 358   2021-04-13   
872-895 A Chicago Zone 01-Calumet IL 506J TWILIO INTERNATIONAL, INC. 358      
872-895 8 Chicago Zone 01-Calumet IL 506J TWILIO INTERNATIONAL, INC. 358   2020-10-25   

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

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