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: 217 [Rate centres in NPA 217] [Dial plan for NPA 217]

NXX: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-583 A Royal IL ROYLILXCRS0  1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 370      
217-583 1 Royal IL CHMPILCPOMD  224C ONVOY, LLC 370      
217-583 2 Royal IL CHMPILCPOMD  224C ONVOY, LLC 370      
217-583 3 Royal IL ROYLILXCRS0  1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 370      
217-583 4 Royal IL CHMPILLW0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370      
217-583 5 Royal IL CHMPILCPX0Y  073H TELNYX LLC 370      
217-583 6 Royal IL CHMPILCPXOX  508J CENTURYLINK COMMUNICATIONS, LLC 370      
217-583 7 Royal IL CHMPILCPOMD  224C ONVOY, LLC 370      
217-583 8 Royal IL CHMPILCPOMD  224C ONVOY, LLC 370      
217-583 9 Royal IL CHMPILCPDS1  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 370      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.