Golden West Telecommunications Coop., Inc. GWTC-IPV4-BLOCK1 (NET-64-251-160-0-1) 64.251.160.0 - 64.251.191.255 Golden West Telecommunications Coop., Inc. ROUTING-INFRASTRUCTURE (NET-64-251-173-0-1) 64.251.173.0 - 64.251.173.255