# # 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 1997-2025, American Registry for Internet Numbers, Ltd. # # start NetRange: 74.240.0.0 - 74.243.255.255 CIDR: 74.240.0.0/14 NetName: MSFT NetHandle: NET-74-240-0-0-2 Parent: NET74 (NET-74-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Microsoft Corporation (MSFT) RegDate: 2019-12-11 Updated: 2019-12-11 Ref: https://rdap.arin.net/registry/ip/74.240.0.0 OrgName: Microsoft Corporation OrgId: MSFT Address: One Microsoft Way City: Redmond StateProv: WA PostalCode: 98052 Country: US RegDate: 1998-07-10 Updated: 2025-06-10 Comment: To report suspected security issues specific to traffic emanating from Microsoft online services, including the distribution of malicious content or other illicit or illegal material through a Microsoft online service, please submit reports to: Comment: * https://cert.microsoft.com. Comment: Comment: For SPAM and other abuse issues, such as Microsoft Accounts, please contact: Comment: * abuse@microsoft.com. Comment: Comment: To report security vulnerabilities in Microsoft products and services, please contact: Comment: * secure@microsoft.com. Comment: Comment: For legal and law enforcement-related requests, please contact: Comment: * msndcc@microsoft.com Comment: Comment: For routing, peering or DNS issues, please Comment: contact: Comment: * IOC@microsoft.com Ref: https://rdap.arin.net/registry/entity/MSFT OrgTechHandle: BEDAR6-ARIN OrgTechName: Bedard, Dawn OrgTechPhone: +1-425-538-6637 OrgTechEmail: dabedard@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/BEDAR6-ARIN OrgTechHandle: IPHOS5-ARIN OrgTechName: IPHostmaster, IPHostmaster OrgTechPhone: +1-425-538-6637 OrgTechEmail: iphostmaster@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/IPHOS5-ARIN OrgTechHandle: MRPD-ARIN OrgTechName: Microsoft Routing, Peering, and DNS OrgTechPhone: +1-425-882-8080 OrgTechEmail: IOC@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/MRPD-ARIN OrgRoutingHandle: CHATU3-ARIN OrgRoutingName: Chaturmohta, Somesh OrgRoutingPhone: +1-425-882-8080 OrgRoutingEmail: someshch@microsoft.com OrgRoutingRef: https://rdap.arin.net/registry/entity/CHATU3-ARIN OrgTechHandle: SINGH683-ARIN OrgTechName: Singh, Prachi OrgTechPhone: +1-425-707-5601 OrgTechEmail: pracsin@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/SINGH683-ARIN OrgAbuseHandle: MAC74-ARIN OrgAbuseName: Microsoft Abuse Contact OrgAbusePhone: +1-425-882-8080 OrgAbuseEmail: abuse@microsoft.com OrgAbuseRef: https://rdap.arin.net/registry/entity/MAC74-ARIN # end # start NetRange: 74.243.224.0 - 74.243.255.255 CIDR: 74.243.224.0/19 NetName: BLS-74-243-224-0-1003020949 NetHandle: NET-74-243-224-0-1 Parent: MSFT (NET-74-240-0-0-2) NetType: Reassigned OriginAS: Customer: CHS ADSL CBB (C02435470) RegDate: 2010-03-03 Updated: 2010-03-03 Ref: https://rdap.arin.net/registry/ip/74.243.224.0 CustName: CHS ADSL CBB Address: 575 Morosgo Dr. NE City: Atlanta StateProv: GA PostalCode: 30324 Country: US RegDate: 2010-03-03 Updated: 2018-09-10 Ref: https://rdap.arin.net/registry/entity/C02435470 OrgTechHandle: BEDAR6-ARIN OrgTechName: Bedard, Dawn OrgTechPhone: +1-425-538-6637 OrgTechEmail: dabedard@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/BEDAR6-ARIN OrgTechHandle: IPHOS5-ARIN OrgTechName: IPHostmaster, IPHostmaster OrgTechPhone: +1-425-538-6637 OrgTechEmail: iphostmaster@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/IPHOS5-ARIN OrgTechHandle: MRPD-ARIN OrgTechName: Microsoft Routing, Peering, and DNS OrgTechPhone: +1-425-882-8080 OrgTechEmail: IOC@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/MRPD-ARIN OrgRoutingHandle: CHATU3-ARIN OrgRoutingName: Chaturmohta, Somesh OrgRoutingPhone: +1-425-882-8080 OrgRoutingEmail: someshch@microsoft.com OrgRoutingRef: https://rdap.arin.net/registry/entity/CHATU3-ARIN OrgTechHandle: SINGH683-ARIN OrgTechName: Singh, Prachi OrgTechPhone: +1-425-707-5601 OrgTechEmail: pracsin@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/SINGH683-ARIN OrgAbuseHandle: MAC74-ARIN OrgAbuseName: Microsoft Abuse Contact OrgAbusePhone: +1-425-882-8080 OrgAbuseEmail: abuse@microsoft.com OrgAbuseRef: https://rdap.arin.net/registry/entity/MAC74-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 1997-2025, American Registry for Internet Numbers, Ltd. #