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: 936 [Rate centres in NPA 936] [Dial plan for NPA 936]

NXX: 228

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
936-228 A Willis EMS TX WILSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
936-228 0 Willis EMS TX WILSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
936-228 1 Willis EMS TX HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
936-228 2 Willis EMS TX NCGDTXNCKMD  318C CEBRIDGE TELECOM TX , L.P. - TX 560      
936-228 3 Willis EMS TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
936-228 4 Willis EMS TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
936-228 5 Willis EMS TX WILSTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
936-228 6 Willis EMS TX HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
936-228 7 Willis EMS TX NCGDTXNCKMD  318C CEBRIDGE TELECOM TX , L.P. - TX 560      
936-228 8 Willis EMS TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
936-228 9 Willis EMS TX HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.