# # 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 GTT Americas, LLC (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: 66.54.159.0 - 66.54.159.15 CIDR: 66.54.159.0/28 NetName: CYTIVA-GTT NetHandle: NET-66-54-159-0-1 Parent: RGS-BLK3 (NET-66-54-128-0-1) NetType: Reassigned OriginAS: Customer: Cytiva (C11407269) RegDate: 2025-10-30 Updated: 2025-10-30 Ref: https://rdap.arin.net/registry/ip/66.54.159.0 CustName: Cytiva Address: 100 Results Way City: Marlborough StateProv: MA PostalCode: 01752 Country: US RegDate: 2025-10-30 Updated: 2025-10-30 Ref: https://rdap.arin.net/registry/entity/C11407269 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. #