AS8075 — MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation

Network type: hosting

AS8075 announces 1,190 IPv4 prefixes covering 80,749,056 addresses and 182 IPv6 prefixes.

About this network

Microsoft's primary Autonomous System, carrying Azure, Microsoft 365, Outlook, Xbox Live, Bing, and Microsoft's corporate traffic.

What it's used for

• Hosting Azure cloud workloads and Microsoft's first-party services.
• Serving Windows Update, Office/Microsoft 365, Teams, and related endpoints.

Notable

• Like other hyperscalers, an IP here means Microsoft/Azure is the host; the actual application could be first-party or a customer's Azure deployment.
• Microsoft publishes its service IP ranges and endpoints (Azure IP ranges JSON, Microsoft 365 URL/IP lists) so firewalls can allow-list them precisely.

Interesting

• Microsoft operates one of the largest private wide-area backbones in the world to interconnect its Azure regions.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 1.186.0.0/17
• 1.186.128.0/18
• 1.186.192.0/19
• 1.186.224.0/20
• 1.186.240.0/21
• 1.186.248.0/22
• 1.186.252.0/23
• 1.186.255.0/24
• 2.58.103.0/24
• 4.144.0.0/12
• 4.160.0.0/11
• 4.192.0.0/12
• 4.208.0.0/14
• 4.212.0.0/16
• 4.213.0.0/17
• 4.213.128.0/18
• 4.213.192.0/19
• 4.213.224.0/20
• 4.213.240.0/22
• 4.213.244.0/23
• 4.213.246.0/24
• 4.213.248.0/21
• 4.214.0.0/15
• 4.216.0.0/13
• 4.224.0.0/11
• 5.23.34.0/24
• 5.144.153.0/24
• 9.129.0.0/16
• 9.130.0.0/15
• 9.132.0.0/15
• 9.135.0.0/16
• 9.136.0.0/16
• 9.140.0.0/15
• 9.143.0.0/16
• 9.145.0.0/16
• 9.146.0.0/16
• 9.149.0.0/16
• 9.157.0.0/16
• 9.158.0.0/15
• 9.160.0.0/16
• 9.163.0.0/16
• 9.164.0.0/16
• 9.166.0.0/15
• 9.169.0.0/16
• 9.173.0.0/16
• 9.177.0.0/16
• 9.185.0.0/16
• 9.190.0.0/16
• 9.192.0.0/15
• 9.198.0.0/16
• 9.205.0.0/16
• 9.220.0.0/16
• 9.223.0.0/16
• 9.228.0.0/15
• 9.231.0.0/16
• 9.234.0.0/15
• 9.248.0.0/16
• 13.64.0.0/11
• 13.104.0.0/18
• 13.104.64.0/20
• 13.104.80.0/23
• 13.104.83.0/24
• 13.104.84.0/22
• 13.104.88.0/21
• 13.104.96.0/19
• 13.104.128.0/17
• 13.105.0.0/16
• 13.106.0.0/16
• 13.107.0.0/23
• 13.107.2.0/24
• 13.107.8.0/24
• 13.107.10.0/23
• 13.107.14.0/24
• 13.107.17.0/24
• 13.107.20.0/24
• 13.107.23.0/24
• 13.107.24.0/21
• 13.107.32.0/22
• 13.107.36.0/23
• 13.107.38.0/24
• 13.107.41.0/24
• 13.107.44.0/22
• 13.107.53.0/24
• 13.107.55.0/24
• 13.107.57.0/24
• 13.107.58.0/23
• 13.107.60.0/22
• 13.107.64.0/18
• 13.107.130.0/23
• 13.107.132.0/22
• 13.107.136.0/22
• 13.107.141.0/24
• 13.107.142.0/23
• 13.107.144.0/20
• 13.107.160.0/19
• 13.107.192.0/19
• 13.107.224.0/20
• 13.107.240.0/21
• 13.107.248.0/22
• 13.107.252.0/23

and 1,272 more.

Upstream networks

• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS1403 EBOX
• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS7018 AT&T Enterprises, LLC
• AS22652 Videotron Ltee
• AS55720 Gigabit Hosting Sdn Bhd
• AS174 Cogent Communications, LLC
• AS2914 NTT America, Inc.
• AS37721 Virtual Technologies & Solutions
• AS9002 RETN Limited
• AS6696 VERIXI SA
• AS48185 team.blue NV
• AS29504 Freenet Liberec, z.s.
• AS42708 Glesys Sweden AB
• AS1836 green.ch AG
• AS38001 NewMedia Express Pte Ltd
• AS50304 Blix Solutions AS
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS1257 Tele2 Sverige AB
• AS34019 Hivane Association
• AS24482 SG.GS
• AS64073 Vetta Group
• AS852 TELUS Communications Inc.

Downstream networks

• AS8069 Microsoft Corporation
• AS8068 Microsoft Corporation
• AS8070 Microsoft Corporation
• AS58593 Shanghai Blue Cloud Technology Co.,Ltd
• AS3598 Microsoft Corporation
• AS62540 Drake Holdings LLC
• AS5761 Microsoft Corporation

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS8069 Microsoft Corporation
• AS34549 meerfarbig GmbH & Co. KG
• AS1299 Arelion Sweden AB
• AS8068 Microsoft Corporation
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS1403 EBOX
• AS3356 Level 3 Parent, LLC
• AS22652 Videotron Ltee
• AS7018 AT&T Enterprises, LLC
• AS55720 Gigabit Hosting Sdn Bhd
• AS174 Cogent Communications, LLC
• AS8070 Microsoft Corporation
• AS58593 Shanghai Blue Cloud Technology Co.,Ltd
• AS24482 SG.GS
• AS9002 RETN Limited
• AS2914 NTT America, Inc.
• AS37721 Virtual Technologies & Solutions
• AS6696 VERIXI SA
• AS42708 Glesys Sweden AB
• AS48185 team.blue NV
• AS14907 Wikimedia Foundation Inc.
• AS38001 NewMedia Express Pte Ltd
• AS50304 Blix Solutions AS
• AS1836 green.ch AG

Routing security

• RPKI: 1,351 valid, 1 invalid and 23 not-found announcements; 1,633 ROAs.
• ASPA: none published.
• IRR: 99% of announcements registered; 2,370 route objects.
• Listed in as-sets: AS-10099, AS-137491, AS-17117IMPORT, AS-2TALK-PEERS, AS-31027-EXCLUDE-AMS-IX-RS, AS-37148-GLOBACOM, AS-3PSYSTEM-AMSIX-EXCEPTIONS, AS-40300-IX-CUSTOMERS, AS-43413_NT-NIX, AS-4648-PAIX-PEER, AS-4D-DC-LONAP, AS-8167-PEERING-INTERNATIONAL, AS-8764-EXCLUDE-AMS-IX-RS, AS-ACT-GLOBAL, AS-AIRPARK-NAP-CT1-PEERS, AS-AIRPARK-NAP-JB1-PEERS, AS-AKN:AS-TORIX-PEERS, AS-AMS-IX-HK-RS, AS-AMS-IX-HK-RS, AS-AMS-IX-HK-RS-SETS, AS-AMS-IX-HK-RS-SETS, AS-AMS-IX-HK-RS-SETS-V6, AS-AMS-IX-HK-RS-SETS-V6, AS-AMS-IX-HK-RS-V6, AS-AMS-IX-HK-RS-V6.

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• DE-CIX Frankfurt — Frankfurt, Germany
• IX.br (PTT.br) Fortaleza — Fortaleza, Brazil
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Jakarta Internet Exchange — Jakarta, Indonesia
• Neutral Internet Exchange — Amsterdam, Netherlands
• NAPAfrica IX Johannesburg — Johannesburg, South Africa
• France-IX Paris — Paris, France
• Equinix Internet Exchange Singapore — Singapore, Singapore
• TPIX - Internet Exchange — Warsaw, Poland
• Milan Internet Exchange — Milan, Italy
• Equinix Internet Exchange Ashburn — Ashburn, United States
• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• Giganet Internet Exchange — Kyiv, Ukraine
• Coresite - Any2 West — Los Angeles, United States
• Seattle Internet Exchange — Seattle, United States
• Any2 California — Los Angeles, United States
• NAPAfrica IX Cape Town — Cape Town, South Africa
• London Network Access Point — London, United Kingdom
• Hong Kong Internet Exchange — Hong Kong, China
• JPIX Tokyo — Tokyo, Japan
• Equinix Internet Exchange Warsaw — Warsaw, Poland
• Toronto Internet Exchange — Toronto, Canada
• Equinix Internet Exchange Chicago — Chicago, United States
• DE-CIX Mumbai — Mumbai, India
• DE-CIX New York — New York, United States
• Singapore Internet Exchange — Singapore, Singapore
• Megaport IX Sydney — Sydney, Australia
• NetIX — Sofia, Bulgaria
• SwissIX — Zurich, Switzerland
• Extreme IX Mumbai — Mumbai, India
• Equinix Internet Exchange Sydney — Sydney, Australia
• Equinix Internet Exchange Paris — Paris, France
• Equinix Internet Exchange Hong Kong — Hong Kong, China
• Equinix Internet Exchange Dallas — Dallas, United States
• DE-CIX Dusseldorf — Düsseldorf, Germany
• Roma Internet Exchange Point — Rome, Italy
• DE-CIX Madrid — Madrid, Spain
• Johannesburg Internet Exchange — Johannesburg, South Africa
• New York International Internet Exchange — New York, United States
• DE-CIX Munich — Munich, Germany
• Peering.cz — Prague, Czech Republic
• NIX.CZ - Neutral Internet eXchange for the Czech Republic — Prague, Czech Republic
• ERA-IX Amsterdam — Amsterdam, Netherlands
• DE-CIX Hamburg — Hamburg, Germany
• IX Australia (Sydney NSW) — Sydney, Australia
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States
• Taipei Internet Exchange (TPIX) — Taipei, Taiwan
• Thinx IX — Warsaw, Poland
• Vienna Internet Exchange — Vienna, Austria
• Malaysia Internet Exchange — Kuala Lumpur, Malaysia
• FL-IX - The Florida Internet Exchange / Community IX - Florida — Miami, United States
• Equinix Internet Exchange Miami — Miami, United States
• National Internet Exchange of India - Mumbai — Mumbai, India
• DE-CIX Dallas — Dallas, United States
• ESpanix Madrid Lower LAN — Madrid, Spain
• Extreme IX New Delhi — New Delhi, India
• Digital Realty Atlanta Internet Exchange — Atlanta, United States
• PIT Chile - Santiago — Santiago, Chile
• Edge Internet Exchange - Sydney — Sydney, Australia
• BroadBand Internet eXchange Singapore — Singapore, Singapore
• Kenya Internet Exchange Point - Nairobi — Nairobi, Kenya
• Midwest Internet Cooperative Exchange — Minneapolis, United States
• Berlin Commercial Internet Exchange — Berlin, Germany
• Megaport IX Melbourne — Melbourne, Australia
• InterLAN-IX — Bucharest, Romania
• Bulgarian Internet eXchange — Sofia, Bulgaria
• LINX Manchester — Manchester, United Kingdom
• Internet Exchange Point of Nigeria - Lagos — Lagos, Nigeria
• DE-CIX ASEAN (Singapore, Malaysia, Brunei) — Singapore, Singapore
• BroadBand Internet eXchange Osaka — Osaka, Japan
• Student & Technology United Internet Exchanges — Taipei, Taiwan
• EdgeNXT Internet Exchange — Jakarta, Indonesia
• France-IX Marseille — Marseille, France
• Equinix Internet Exchange Tokyo — Tokyo, Japan
• Cape Town Internet Exchange — Cape Town, South Africa
• Torino Piemonte Exchange Point — Torino, Italy
• Budapest Internet Exchange — Budapest, Hungary
• Equinix Internet Exchange New York — New York, United States
• National Internet Exchange of India - New Delhi — New Delhi, India
• Internet Neutral Exchange Association CLG - LAN1 — Dublin, Ireland
• Megaport Frankfurt IX — Frankfurt, Germany
• JPIX Osaka — Osaka, Japan
• Megaport IX Brisbane — Brisbane, Australia
• UAE-IX — Dubai, United Arab Emirates
• New Zealand Internet Exchange Auckland — Auckland, New Zealand
• IX Australia (Melbourne VIC) — Melbourne, Australia
• Northwest Access Exchange — Portland, United States
• MegaPort-IX Auckland — Auckland, New Zealand
• Detroit Internet Exchange — Detroit, United States
• BroadBand Internet eXchange Hong Kong — Hong Kong, China
• Megaport Dusseldorf IX — Düsseldorf, Germany
• Interconnection eXchange Denver — Denver, United States
• CANIX Internet Exchange - Montreal — Montreal, Canada
• Boston Internet Exchange — Boston, United States
• Extreme IX Chennai — Chennai, India
• Digital Edge EPIX Jakarta — Jakarta, Indonesia
• AMS-IX Mumbai — Mumbai, India
• DE-CIX Chicago — Chicago, United States
• Auckland Peering Exchange — Auckland, New Zealand
• Belgian National Internet Exchange — Brussels, Belgium
• IX Australia (Perth WA) — Perth, Australia
• Edge Internet Exchange - Perth — Perth, Australia
• Equinix Internet Exchange Los Angeles — Los Angeles, United States
• IX Australia (Brisbane QLD) — Brisbane, Australia
• Equinix Internet Exchange Palo Alto — Palo Alto, United States
• Massachusetts Internet Exchange — Boston, United States
• Greek Internet Exchange - Athens — Athens, Greece
• Digital Realty New York Internet Exchange — New York, United States
• Vancouver Internet Exchange — Vancouver, Canada
• Edge Internet Exchange - Melbourne — Melbourne, Australia
• DE-CIX Delhi — New Delhi, India
• Equinix Los Angeles IBX — Los Angeles, United States
• Internet Neutral Exchange Association CLG - LAN2 — Dublin, Ireland
• DE-CIX Istanbul — Istanbul, Turkey
• PIT Colombia - Bogota — Bogota, Colombia
• Norwegian Internet Exchange Oslo 1 — Oslo, Norway
• United IX Chicago — Chicago, United States
• Megaport IX Perth — Perth, Australia
• Equinix IBX Secaucus — Secaucus, United States
• Korea Internet Neutral Exchange KINX — Seoul, South Korea
• DE-CIX Lisbon — Lisbon, Portugal
• Gigabit Portuguese Internet Exchange Point — Lisbon, Portugal
• Edge Internet Exchange - Auckland — Auckland, New Zealand
• Catalunya Neutral Internet Exchange Point — Barcelona, Spain
• Equinix Internet Exchange Melbourne — Melbourne, Australia
• National Internet Exchange of India - Chennai — Chennai, India
• AMS-IX Lagos — Lagos, Nigeria
• DE-CIX Chennai — Chennai, India
• Edge Internet Exchange - Brisbane — Brisbane, Australia
• CERN IXP / Equinix Internet Exchange Geneva — Geneva, Switzerland
• IX.br (PTT.br) Campinas — Campinas, Brazil
• PIT MX — Querétaro, Mexico
• CitranetIX Yogyakarta — Yogyakarta, Indonesia
• Megaport IX Ashburn — Ashburn, United States
• LINX NoVa — Reston, United States
• MegaPort IX Singapore — Singapore, Singapore
• Croatian Internet Exchange — Zagreb, Croatia
• DE-CIX Barcelona — Barcelona, Spain
• DE-CIX Kuala Lumpur — Kuala Lumpur, Malaysia
• Equinix Internet Exchange Seattle — Seattle, United States
• Equinix Internet Exchange Zurich — Zurich, Switzerland
• Megaport Berlin IX — Berlin, Germany
• DE-CIX Phoenix — Phoenix, United States
• Salt Lake Internet Exchange — Salt Lake City, United States
• Megaport Munich IX — Munich, Germany
• Equinix Internet Exchange Perth — Perth, Australia
• Megaport Dallas — Dallas, United States
• Megaport IX Los Angeles — Los Angeles, United States
• Qatar Internet Exchange Point — Doha, Qatar
• Asteroid Amsterdam IX — Amsterdam, Netherlands
• Manama-IX — Manama, Bahrain
• Equinix Internet Exchange Osaka — Osaka, Japan
• Singapore Open Exchange — Singapore, Singapore
• Megaport MegaIX Sofia — Sofia, Bulgaria
• Neutral Internet Exchange 2 — Amsterdam, Netherlands
• Extreme IX Hyderabad — Hyderabad, India
• Netnod Sundsvall- Gävle — Sundsvall, Sweden
• Megaport IX Seattle — Seattle, United States
• Megaport Toronto — Toronto, Canada
• Equinix Internet Exchange Seoul — Seoul, South Korea
• AMS-IX Hyderabad — Hyderabad, India
• CANIX Internet Exchange - Quebec — Quebec, Canada
• Megaport Las Vegas — Las Vegas, United States
• Equinix-LA(former Paix) — Los Angeles, United States
• Ponto de Intercambio Internet Angola — Luanda, Angola