And 108 more
As the route collectors of RIPEstat see them
1,233 IPv4 prefixes covering 81,116,672 addresses, and 122 IPv6 prefixes
And 1,183 more
And 72 more
From bgp.tools
Location from GeoLite2 data created by MaxMind
From AbuseIPDB
# # 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. # NetRange: 2603:1000:: - 2603:10FF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF CIDR: 2603:1000::/24 NetName: MSFT NetHandle: NET6-2603-1000-1 Parent: NET6-2600 (NET6-2600-1) NetType: Direct Allocation OriginAS: Organization: Microsoft Corporation (MSFT) RegDate: 2014-06-05 Updated: 2014-06-05 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/ip/2603:1000:: 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: 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 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: IPHOS5-ARIN OrgTechName: IPHostmaster, IPHostmaster OrgTechPhone: +1-425-538-6637 OrgTechEmail: iphostmaster@microsoft.com OrgTechRef: https://rdap.arin.net/registry/entity/IPHOS5-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 # # 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. #
From https://rdap.arin.net/registry/ip/2603:1026:c11:a::2
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"v6prefix": "2603:1000::",
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"entities": [
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},
{
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"eventDate": "2013-08-20T19:26:59-04:00"
}
],
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},
{
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}
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"* msndcc@microsoft.com\r",
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[
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"handle": "SINGH683-ARIN",
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{
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"remarks": [
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{},
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},
"text",
[
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[
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{},
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"Prachi Singh"
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{
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}
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"handle": "IPHOS5-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IPHOS5-ARIN",
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"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
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{
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{
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"eventDate": "2016-10-20T15:51:33-04:00"
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
},
{
"href": "https://whois.arin.net/rest/poc/BEDAR6-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
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{},
"text",
"Dawn Bedard"
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[
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{},
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"individual"
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[
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{},
"text",
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{
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{
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"eventDate": "2026-10-22T18:50:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "2013-08-20T19:24:57-04:00"
}
],
"handle": "MAC74-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MAC74-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
},
{
"href": "https://whois.arin.net/rest/poc/MAC74-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
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"For SPAM and other abuse issues, such as Microsoft Accounts, please contact abuse@microsoft.com. \r",
"To report security vulnerabilities in Microsoft products and services, please contact secure@microsoft.com. \r",
"For legal and law enforcement-related requests, please contact msndcc@microsoft.com\r",
"For routing, peering or DNS issues, please contact IOC@microsoft.com"
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"text",
[
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[
"fn",
{},
"text",
"Microsoft Abuse Contact"
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[
"org",
{},
"text",
"Microsoft Corporation"
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[
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{},
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{},
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"abuse@microsoft.com"
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{
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},
{
"eventAction": "registration",
"eventDate": "2023-06-13T16:26:16-04:00"
}
],
"handle": "CHATU3-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CHATU3-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
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{
"href": "https://whois.arin.net/rest/poc/CHATU3-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
"status": [
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],
"vcardArray": [
"vcard",
[
[
"version",
{},
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[
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{
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"text",
[
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[
"fn",
{},
"text",
"Somesh Chaturmohta"
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[
"n",
{},
"text",
[
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[
"kind",
{},
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"individual"
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[
"email",
{},
"text",
"someshch@microsoft.com"
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[
"tel",
{
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},
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"events": [
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},
{
"eventAction": "registration",
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}
],
"handle": "MSFT",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
},
{
"href": "https://whois.arin.net/rest/org/MSFT",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
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"\r",
"For SPAM and other abuse issues, such as Microsoft Accounts, please contact:\r",
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"For legal and law enforcement-related requests, please contact:\r",
"* msndcc@microsoft.com\r",
"\r",
"For routing, peering or DNS issues, please \r",
"contact:\r",
"* IOC@microsoft.com"
],
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"events": [
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},
{
"eventAction": "registration",
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}
],
"handle": "NET6-2603-1000-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2603:1000::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2603-1000-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
}
],
"name": "MSFT",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
}
],
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},
{
"description": [
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],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/2603:1026:c11:a::2"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
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],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET6-2600-1",
"port43": "whois.arin.net",
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{
"description": [
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"* https://cert.microsoft.com. \r",
"\r",
"For SPAM and other abuse issues, such as Microsoft Accounts, please contact: \r",
"* abuse@microsoft.com. \r",
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"* secure@microsoft.com. \r",
"\r",
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"* msndcc@microsoft.com \r",
"\r",
"For routing, peering or DNS issues, please \r",
"contact: \r",
"* IOC@microsoft.com"
],
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}
],
"startAddress": "2603:1000::",
"status": [
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],
"type": "DIRECT ALLOCATION"
}