This web site represents the home of "Country Files", databases of entities (countries), prefixes and callsigns that are used by amateur radio logging software. There are three "flavors" of country files:
*CTY.DAT, etc. used by contest logging software such as CT, N1MM, NA, TR and Writelog
*DX4WIN.CTY used by the DX4WIN Windows-based general-purpose logging software
*WPXLOC.DAT used by packet cluster software such as AR-Cluster, CC Cluster and DX Spider
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