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.

Thawville, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-387 A TWVLILXCRS1  1015 FRONTIER NORTH, INC. - IL 370      
217-387 1 CHMPILCPDS1  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 370      
217-387 2 TWVLILXCRS1  1015 FRONTIER NORTH, INC. - IL 370      
217-387 3 CHMPILCPOMD  224C ONVOY, LLC 370      
217-387 4 CHMPILCPOMD  224C ONVOY, LLC 370      
217-387 5 CHMPILCPOMD  224C ONVOY, LLC 370      
217-387 6 CHMPILCPOMD  224C ONVOY, LLC 370      
217-387 7 CHMPILCPXOX  508J CENTURYLINK COMMUNICATIONS, LLC 370      
217-387 8 CHMPILCPOMD  224C ONVOY, LLC 370      
217-387 9 CHMPILCPOMD  224C ONVOY, LLC 370      
447-547 A CHMPILCPOMD  224C ONVOY, LLC 370      
447-547 0 CHMPILCPX0Y  073H TELNYX LLC 370      
447-547 1   624H ONVOY SPECTRUM, LLC 370      
447-547 4 CHMPILCPOMD  224C ONVOY, LLC 370      
447-547 5 CHMPILCPOMD  224C ONVOY, LLC 370      
447-547 7 CHMPILCPOMD  224C ONVOY, LLC 370      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.