AS12076 Microsoft Corporation

• IPv4 Prefixes
• IPv6 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	151.207.40.0/22	United States Patent and Trademark Office		151.207.0.0/16	ARIN
	151.207.44.0/22	United States Patent and Trademark Office		151.207.0.0/16	ARIN
	170.110.229.0/24	U.S. Department of Commerce, HQ and ITA		170.110.0.0/16	ARIN

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	2608:1c1:6::/48	United States Department of Defense (DoD)		2608::/22	ARIN
	2608:1c1:7::/48	United States Department of Defense (DoD)		2608::/22	ARIN
	2608:1c1:8::/48	United States Department of Defense (DoD)		2608::/22	ARIN

• IPv4 Peers
• IPv6 Peers

Country	ASN	Name	Description	IPv6
	AS3477	NOAA-NWAVE	National Oceanic and Atmospheric Administration

Country	ASN	Name	Description	IPv4
	AS5852	DNIC-ASBLK-05800-06055	DoD Network Information Center

• IPv4 Upstreams
• IPv6 Upstreams

Country	ASN	Name	Description	IPv6
	AS3477	NOAA-NWAVE	National Oceanic and Atmospheric Administration

IPv4 Upstream Graph

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IPv4 Upstream Graph

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Country	ASN	Name	Description	IPv4
	AS5852	DNIC-ASBLK-05800-06055	DoD Network Information Center

IPv6 Upstream Graph

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IPv6 Upstream Graph

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#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
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# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
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ASNumber:       12076
ASName:         MICROSOFT
ASHandle:       AS12076
RegDate:        1999-03-16
Updated:        2015-02-23    
Ref:            https://rdap.arin.net/registry/autnum/12076



OrgName:        Microsoft Corporation
OrgId:          MSFT
Address:        One Microsoft Way
City:           Redmond
StateProv:      WA
PostalCode:     98052
Country:        US
RegDate:        1998-07-10
Updated:        2024-03-18
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


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

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: KIMAV-ARIN
OrgTechName:   Kim, Avery  
OrgTechPhone:  +1-425-882-8080 
OrgTechEmail:  averykim@microsoft.com
OrgTechRef:    https://rdap.arin.net/registry/entity/KIMAV-ARIN

OrgTechHandle: BEDAR6-ARIN
OrgTechName:   Bedard, Dawn 
OrgTechPhone:  +1-425-538-6637 
OrgTechEmail:  dabedard@microsoft.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BEDAR6-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: 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

OrgTechHandle: SINGH683-ARIN
OrgTechName:   Singh, Prachi 
OrgTechPhone:  +1-425-707-5601 
OrgTechEmail:  pracsin@microsoft.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SINGH683-ARIN


#
# 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.
#