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: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-900 A Frankfort IL CHCGILWURMD  965H FRACTEL, LLC 358      
779-900 0 Frankfort IL CHCGILWURMD  965H FRACTEL, LLC 358      
779-900 1 Frankfort IL CHCGIL24XMD  495J STRATUS NETWORKS 358      
779-900 2 Frankfort IL CHCGIL24DS6  224C ONVOY, LLC 358      
779-900 3 Frankfort IL CHCGIL24DS6  224C ONVOY, LLC 358      
779-900 4 Frankfort IL CHCGILWUIMD  197D VONAGE AMERICA LLC 358      
779-900 5 Frankfort IL CHCGILWUIMD  197D VONAGE AMERICA LLC 358      
779-900 6 Frankfort IL   624H ONVOY SPECTRUM, LLC 358      
779-900 8 Frankfort IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
779-900 9 Frankfort IL CHCGILWURMD  965H FRACTEL, LLC 358      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.