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: 316 [Rate centres in NPA 316] [Dial plan for NPA 316]

NXX: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
316-377 A El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532      
316-377 0 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532      
316-377 1 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532   2004-12-14   
316-377 2 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532   2004-12-14   
316-377 3 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532      
316-377 4 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532      
316-377 5 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532      
316-377 6 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532      
316-377 7 El Dorado KS WCHVKSCK9MD  6529 T-MOBILE USA, INC. 532      
316-377 8 El Dorado KS WCHTKSTPUMD  145J TERRA NOVA TELECOM INC. 532   2024-05-09   
316-377 9 El Dorado KS WCHVKSCK9MD  5562 METROPCS, INC. 532      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.