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: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-428 A Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 0 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 1 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 2 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 3 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 4 Herrick IL STLSMOWQDS2  224C ONVOY, LLC 520      
618-428 5 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 7 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 8 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      
618-428 9 Herrick IL HRCKILXEDS0  1055 FRONTIER COMMUNICATIONS-MIDLAND, INC. 520      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.