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: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-387 A Thawville IL TWVLILXCRS1  1015 FRONTIER NORTH, INC. - IL 370      
217-387 0 Thawville IL CHMPILCPX5X  5800 ITV-3, LLC D/B/A I3 BROADBAND 370   2003-07-18   
217-387 1 Thawville IL CHMPILCPDS1  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 370   2015-10-31   
217-387 2 Thawville IL TWVLILXCRS1  1015 FRONTIER NORTH, INC. - IL 370      
217-387 3 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2018-10-07   
217-387 4 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2020-05-22   
217-387 5 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2020-05-22   
217-387 6 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2020-05-22   
217-387 7 Thawville IL CHMPILCPXOX  508J CENTURYLINK COMMUNICATIONS, LLC 370   2016-06-17   
217-387 8 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   
217-387 9 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.