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.

Graymont, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
779-479 A BLTNILXDXMX  224C ONVOY, LLC 366      
779-479 0 BLTNILTSYMD  495J STRATUS NETWORKS 366   2021-06-19   
779-479 1 BLTNILXDX1Y  073H TELNYX LLC 366   2021-10-01   
779-479 2 BLTNILXDXMX  224C ONVOY, LLC 366   2021-07-04   
779-479 4 BLTNILXDXMX  224C ONVOY, LLC 366   2021-06-19   
779-479 5 BLTNILXDXHY  624H ONVOY SPECTRUM, LLC 366   2023-06-02   
779-479 7 BLTNILXDXMX  224C ONVOY, LLC 366   2021-06-18   
815-612 A BLTNILXDVMD  5800 ITV-3, LLC D/B/A I3 BROADBAND 366      
815-743 A GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      
815-743 0 GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      
815-743 1 GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      
815-743 2 BLTNILXDXMX  224C ONVOY, LLC 366   2019-07-15   
815-743 3 BLTNILXDXMX  224C ONVOY, LLC 366   2019-01-17   
815-743 4 BLTNILXDXZX  508J CENTURYLINK COMMUNICATIONS, LLC 366   2014-09-12   
815-743 5 GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      
815-743 6 GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      
815-743 7 GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      
815-743 8 GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      
815-743 9 GRMTILXARS0  1073 FRONTIER COMMUNICATIONS-PRAIRIE, INC. 366      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.