# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # # start NetRange: 66.54.128.0 - 66.54.255.255 CIDR: 66.54.128.0/17 NetName: RGS-BLK3 NetHandle: NET-66-54-128-0-1 Parent: NET66 (NET-66-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: GTT Americas, LLC (GAL-104) RegDate: 2000-12-22 Updated: 2025-05-07 Ref: https://rdap.arin.net/registry/ip/66.54.128.0 OrgName: GTT Americas, LLC OrgId: GAL-104 Address: 4201 Wilson Blvd -Suite 504 City: Arlington StateProv: VA PostalCode: 22203 Country: US RegDate: 2025-02-11 Updated: 2025-07-08 Ref: https://rdap.arin.net/registry/entity/GAL-104 OrgTechHandle: GLD5-ARIN OrgTechName: GTT Legal Departement OrgTechPhone: +359886606 OrgTechEmail: alexander.mutafchiyski@gtt.net OrgTechRef: https://rdap.arin.net/registry/entity/GLD5-ARIN OrgNOCHandle: GNOC16-ARIN OrgNOCName: GTT Network Operations Center OrgNOCPhone: +1-703-442-5500 OrgNOCEmail: noc@gtt.net OrgNOCRef: https://rdap.arin.net/registry/entity/GNOC16-ARIN OrgTechHandle: AS3251-ARIN OrgTechName: AS3257 Netguard OrgTechPhone: +49 69 48007422 OrgTechEmail: netguard@gtt.net OrgTechRef: https://rdap.arin.net/registry/entity/AS3251-ARIN OrgTechHandle: GIT5-ARIN OrgTechName: GTT IPAM Team OrgTechPhone: +1-703-442-5500 OrgTechEmail: netguard@gtt.net OrgTechRef: https://rdap.arin.net/registry/entity/GIT5-ARIN OrgAbuseHandle: GAD46-ARIN OrgAbuseName: GTT Abuse Department OrgAbusePhone: +1-703-442-5500 OrgAbuseEmail: abuse@gtt.net OrgAbuseRef: https://rdap.arin.net/registry/entity/GAD46-ARIN # end # start NetRange: 66.54.138.0 - 66.54.138.7 CIDR: 66.54.138.0/29 NetName: TENET-HEALTHCARE-CORP-GTT NetHandle: NET-66-54-138-0-1 Parent: RGS-BLK3 (NET-66-54-128-0-1) NetType: Reassigned OriginAS: Customer: Tenet Healthcare Corp (C11240837) RegDate: 2025-06-16 Updated: 2025-06-16 Ref: https://rdap.arin.net/registry/ip/66.54.138.0 CustName: Tenet Healthcare Corp Address: 6601 White Feather Rd City: Joshua Tree StateProv: CA PostalCode: 92252-6607 Country: US RegDate: 2025-06-16 Updated: 2025-06-16 Ref: https://rdap.arin.net/registry/entity/C11240837 OrgTechHandle: GLD5-ARIN OrgTechName: GTT Legal Departement OrgTechPhone: +359886606 OrgTechEmail: alexander.mutafchiyski@gtt.net OrgTechRef: https://rdap.arin.net/registry/entity/GLD5-ARIN OrgNOCHandle: GNOC16-ARIN OrgNOCName: GTT Network Operations Center OrgNOCPhone: +1-703-442-5500 OrgNOCEmail: noc@gtt.net OrgNOCRef: https://rdap.arin.net/registry/entity/GNOC16-ARIN OrgTechHandle: AS3251-ARIN OrgTechName: AS3257 Netguard OrgTechPhone: +49 69 48007422 OrgTechEmail: netguard@gtt.net OrgTechRef: https://rdap.arin.net/registry/entity/AS3251-ARIN OrgTechHandle: GIT5-ARIN OrgTechName: GTT IPAM Team OrgTechPhone: +1-703-442-5500 OrgTechEmail: netguard@gtt.net OrgTechRef: https://rdap.arin.net/registry/entity/GIT5-ARIN OrgAbuseHandle: GAD46-ARIN OrgAbuseName: GTT Abuse Department OrgAbusePhone: +1-703-442-5500 OrgAbuseEmail: abuse@gtt.net OrgAbuseRef: https://rdap.arin.net/registry/entity/GAD46-ARIN # end # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #