AS8070 Microsoft Corporation
AS8070 (MICROSOFT-CORP-MSN-AS-BLOCK) is registered to Microsoft Corporation in US, through ARIN. It originates 44 prefixes in the global routing table.
30
IPv4 prefixes
14
IPv6 prefixes
1,073,920
IPv4 addresses
100%
RPKI valid
Registration
Who holds AS8070
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
AS number
AS8070
Handle
MICROSOFT-CORP-MSN-AS-BLOCK
Organization
Microsoft Corporation
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
# # 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. # ASNumber: 8068 - 8075 ASName: MICROSOFT-CORP-MSN-AS-BLOCK ASHandle: AS8068 RegDate: 1997-03-31 Updated: 2013-09-04 Ref: https://rdap.arin.net/registry/autnum/8068 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. #
Routing
What AS8070 announces
Prefixes originated by AS8070 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
IPv4 prefixes
30
IPv6 prefixes
14
IPv4 addresses
1,073,920 (4,195 /24s)
RPKI valid
44 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS8070
50
With an IRR route object
35 79%
Prefixes
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
IPv4 (30)
20.34.0.0/1520.140.0.0/1520.158.0.0/1551.54.0.0/1552.126.0.0/1557.16.0.0/1462.10.0.0/1564.40.141.0/2497.107.239.0/24131.253.72.0/22131.253.80.0/20131.253.112.0/21131.253.120.0/22137.70.156.0/24137.70.158.0/24152.228.48.0/24152.228.49.0/24165.159.132.0/22165.159.136.0/22165.159.188.0/22170.85.197.0/24170.85.198.0/24195.134.224.0/19199.15.136.0/23199.15.138.0/24199.34.97.0/24204.13.120.0/21206.41.48.0/24208.68.130.0/24208.68.131.0/24
IPv6 (14)
2001:489a:2000::/352001:489a:4000::/352601:9200:c001::/482601:9200:c003::/482601:9200:c004::/482603:1063:300::/402603:1063:2100::/402603:1063:7c00::/382605:4300:3601::/482606:e540:c02::/482606:e540:c03::/482607:9240::/482607:9240:1::/482607:9240:2::/48
RPKI valid RPKI invalid no ROA covers it
Neighbors
Who AS8070 is reached through
The AS just before AS8070 in the paths our looking glass collectors hold, for 44 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
IRR
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
Route objects with origin AS8070: RADB 25 · ARIN 23 · RIPE 1
as-sets that list AS8070 (16)