NPA	NXX	CLLI	City, ST	Telco
308	726	KYSTNEXSDS1	KEYSTONE	KEYSTONE - ARTHUR TELEPHONE CO.
319	442	KYSTIAXODS0	KEYSTONE	KEYSTONE FARMS COOPERATIVE TELEPHONE CO.
605	666	KYSTSDXADS1	KEYSTONE	MT. RUSHMORE TELEPHONE CO.
918	243	KYSTOKXADS0	KEYSTONE	CIMARRON TELEPHONE CO.