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AS numbers

AS8075 Microsoft

AS8075 is operated by Microsoft and registered with ARIN (US) since 1997-03-31.

It announces 1,237 IPv4 and 135 IPv6 prefixes, 98% of them RPKI valid.

RIPE RIS sees 125 upstream and peer networks and 7 downstream networks next to it.

PeeringDB lists it as a Content network at 207 internet exchanges and 166 facilities. Its peering policy is selective.

Run the full network report BGP lookup WHOIS PeeringDB lookup
NameMicrosoft
Registry handleMICROSOFT-CORP-MSN-AS-BLOCK
Registry (RIR)ARIN
CountryUnited States (US)
Delegated on1997-03-31
Network typeContent, Global
Peering policySelective
IRR as-setAS-MICROSOFT
Prefixes (IPv4 / IPv6)1,237 / 135
RPKI valid98% (1,349 / 1,372)
Upstreams and peers125
Downstream networks7
Websitemicrosoft.com

Routing health

  • AS8075 announces 1237 IPv4 and 135 IPv6 prefixes.
  • 1349 of 1372 announced prefixes are RPKI valid.
  • 23 announced prefixes are not covered by a ROA of AS8075 (they may have none, or another network’s).
  • 125 upstreams and peers, 7 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 1,372

  • 1.186.0.0/16
  • 2.58.103.0/24
  • 4.144.0.0/12
  • 4.160.0.0/12
  • 4.176.0.0/12
  • 4.192.0.0/12
  • 4.208.0.0/12
  • 4.224.0.0/12
  • 4.240.0.0/12
  • 5.23.34.0/24
  • 5.144.153.0/24
  • 9.129.0.0/16
  • 9.130.0.0/16
  • 9.131.0.0/16
  • 9.132.0.0/16
  • 9.133.0.0/16
  • 9.135.0.0/16
  • 9.136.0.0/16
  • 9.140.0.0/16
  • 9.141.0.0/16
  • 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
  • 9.166.0.0/16
  • 9.167.0.0/16
  • 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
  • 9.228.0.0/16
  • 9.229.0.0/16
  • 9.231.0.0/16
  • 9.234.0.0/15
  • 9.248.0.0/16
  • 13.64.0.0/11
  • 13.104.0.0/14
  • 13.107.14.0/24
  • 13.117.0.0/16
  • 13.118.0.0/15
  • 13.123.0.0/16
  • 13.240.0.0/16
  • 13.241.0.0/16
  • 13.242.0.0/15
  • 13.254.0.0/24
  • 13.254.4.0/24
  • 20.0.0.0/11
  • 20.33.0.0/16
  • 20.36.0.0/14
  • 20.37.64.0/19
  • 20.40.0.0/13
  • 20.45.64.0/20
  • 20.45.80.0/24
  • 20.45.128.0/20
  • 20.46.32.0/19
  • 20.46.32.0/24
  • 20.46.144.0/20
  • 20.46.192.0/19
  • 20.48.0.0/12
  • 20.64.0.0/10
  • 20.74.128.0/17
  • 20.135.0.0/16
  • 20.136.0.0/17
  • 20.143.0.0/16
  • 20.150.0.0/15
  • 20.152.0.0/16
  • 20.153.0.0/16
  • 20.157.0.0/16
  • 20.160.0.0/12
  • 20.184.0.0/13
  • 20.192.0.0/10
  • 20.196.0.0/18
  • 20.203.0.0/17
  • 23.96.0.0/14
  • 23.100.0.0/15
  • 23.102.0.0/16
  • 23.103.64.0/18
  • 23.103.128.0/17
  • 23.103.160.0/20
  • 31.56.106.0/24
  • 31.80.0.0/13
  • 31.207.2.0/23
  • 37.228.121.0/24
  • 37.228.126.0/24
  • 40.33.0.0/16
  • 40.34.0.0/16
  • 40.47.0.0/16
  • 40.64.0.0/15
  • 40.66.0.0/17

Showing the first 100.

Upstreams and peers 125

The networks RIPE RIS sees next to AS8075 in BGP paths, the most visible first.

Peering

Peering policy: Selective. Suggested max-prefix limits: 2,000 IPv4, 500 IPv6. PeeringDB record

Internet exchanges 206
ExchangePortsSpeedRoute server
1-IX EU2200GNo
AKL-IX (Auckland NZ): AKL-IX2200GNo
AMS-IX2800GNo
AMS-IX Hyderabad2200GNo
AMS-IX Lagos: Main240GNo
AMS-IX Mumbai240GNo
Any2Chicago2200GNo
Any2Denver2200GNo
Any2East2200GNo
Any2West2200GNo
AR-IX Cabase - Argentina2200GNo
Asteroid Amsterdam: Asteroid Amsterdam Peering LAN110GNo
Balcan-IX2200GNo
BBIX Hong Kong2200GNo
BBIX Manila2200GNo
BBIX Osaka2200GNo
BBIX Singapore2200GNo
BBIX Tokyo2400GNo
BCIX: BCIX Peering LAN2200GNo
BIX2200GNo
BIX.BG: Main2200GNo
BNIX2400GNo
Boston Internet Exchange2200GNo
CANIX Montreal2200GNo
CANIX Quebec City2200GNo
CATNIX2200GNo
center3 IX Jeddah: Main220GNo
ChIX2200GNo
CINX: CINX Peering2200GNo
CitraIX Yogyakarta1100GNo
CIX240GNo
CIX-ATL2200GNo
CIXP110GNo
DE-CIX Athens220GNo
DE-CIX Barcelona220GNo
DE-CIX Chennai: DE-CIX Chennai Peering LAN2110GNo
DE-CIX Chicago2200GNo
DE-CIX Dallas: DE-CIX Dallas Peering LAN1100GNo
DE-CIX Delhi: DE-CIX Delhi Peering LAN240GNo
DE-CIX Dusseldorf: DE-CIX Dusseldorf Peering LAN2200GNo
DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN21.2TNo
DE-CIX Hamburg: DE-CIX Hamburg Peering LAN220GNo
DE-CIX Istanbul: DE-CIX Istanbul Peering LAN2200GNo
DE-CIX Kuala Lumpur110GNo
DE-CIX Lisbon: DE-CIX Lisbon Peering LAN2200GNo
DE-CIX Mexico2200GNo
DE-CIX Mumbai: DE-CIX Mumbai Peering LAN2200GNo
DE-CIX Munich: DE-CIX Munich Peering LAN2200GNo
DE-CIX New York: DE-CIX New York Peering LAN2200GNo
DE-CIX Phoenix2200GNo
DET-iX2200GNo
Digital Edge EPIX Jakarta2200GNo
Digital Realty Ashburn: Main1100GNo
Digital Realty Atlanta2200GNo
DIX: DIX LAN240GNo
DRF IX2200GNo
EdgeIX - Auckland2200GNo
EdgeIX - Brisbane: Main2200GNo
EdgeIX - Melbourne: Main2200GNo
EdgeIX - Perth: Main2200GNo
EdgeIX - Sydney: Main2200GNo
EdgeNXT2200GNo
EG-IX2200GNo
Equinix Amsterdam: Equinix IX - AM Metro2200GNo
Equinix Ashburn2400GNo
Equinix Atlanta2200GNo
Equinix Barcelona: Equinix IX - BA Metro110GNo
Equinix Bogota: Equinix IX - BG Metro2200GNo
Equinix Chicago2400GNo
Equinix Dallas2400GNo
Equinix Dublin: Equinix IX - DB Metro110GNo
Equinix Frankfurt: Equinix IX - FR Metro2200GNo
Equinix Helsinki: Equinix IX - HE Metro1100GNo
Equinix Hong Kong2600GNo
Equinix Lisbon: Equinix IX - LS Metro2110GNo
Equinix London: Equinix IX - LD Metro2200GNo
Equinix Los Angeles2200GNo
Equinix Manchester: Equinix IX - MA Metro110GNo
Equinix Melbourne2200GNo
Equinix Miami2200GNo
Equinix Milan: Equinix IX - ML Metro110GNo
Equinix New York2200GNo
Equinix Osaka2200GNo
Equinix Paris: Equinix IX - PA Metro2200GNo
Equinix Perth: Main2200GNo
Equinix Rio de Janeiro2200GNo
Equinix San Jose2200GNo
Equinix São Paulo: Equinix IX - SP Metro2200GNo
Equinix Seattle2200GNo
Equinix Seoul: Equinix IX - SL Metro220GNo
Equinix Singapore2600GNo
Equinix Stockholm: Equinix IX - SK Metro2200GNo
Equinix Sydney2400GNo
Equinix Tokyo2200GNo
Equinix Warsaw2200GNo
Equinix Zurich: Equinix IX - ZH Metro2200GNo
ERA-IX Amsterdam2200GNo
ESpanix Madrid Lower LAN2400GNo
ESpanix Madrid Upper LAN1100GNo
Extreme IX Chennai: Extreme IX LAN2400GNo
Extreme IX Delhi: Extreme IX LAN2200GNo
Extreme IX Hyderabad: Extreme IX LAN220GNo
Extreme IX Mumbai: Extreme IX2400GNo
FICIX 1 (Espoo): IPv4+IPv6 MTU 15001100GNo
FL-IX2200GNo
France-IX Marseille2200GNo
France-IX Paris2400GNo
GigaPIX - LAN 1: LAN1130GNo
GigaPIX - LAN 2: LAN2130GNo
GR-IX::Athens: Peering Lan2200GNo
Grand Rapids Internet Exchange (GRR-iX)2200GNo
HKIX: HKIX Peering LAN2200GNo
INEX LAN1: INEX LAN11100GNo
INEX LAN21100GNo
InterLAN-IX: InterLAN Peering Network2200GNo
IX Australia Brisbane (QLD-IX): QLD-IX2200GNo
IX Australia Melbourne (VIC-IX): VIC-IX2800GNo
IX Australia Perth (WA-IX): WA-IX2200GNo
IX Australia Sydney (NSW-IX): NSW-IX2800GNo
IX-Denver: IX-Denver Fabric2200GNo
IX.br (PTT.br) Campinas: ATM/MPLA2200GNo
IX.br (PTT.br) Fortaleza: ATM/MPLA2200GNo
IX.br (PTT.br) Rio de Janeiro: ATM/MPLA2200GNo
IX.br (PTT.br) São Paulo: ATM/MPLA2400GNo
IXPN Lagos2200GNo
JINX: JINX Peering2200GNo
JKT-IX: Main2200GNo
JPIX OSAKA2200GNo
JPIX TOKYO2200GNo
JPNAP Osaka2200GNo
JPNAP Tokyo: Peering2200GNo
KINX2200GNo
KIXP - Nairobi: Peering LAN2200GNo
KOIX2200GNo
LINX LON1: Main2800GNo
LINX LON21400GNo
LINX Manchester2200GNo
LINX Nairobi2200GNo
LINX NoVA1100GNo
LONAP: LON02400GNo
Manama IX: Main2200GNo
MASS-IX: ISP Peering LAN1100GNo
MegaIX Ashburn: MegaIX1100GNo
MegaIX Auckland: MegaIX2200GNo
MegaIX Berlin120GNo
MegaIX Brisbane: MegaIX2200GNo
MegaIX Dallas1100GNo
MegaIX Dusseldorf2200GNo
MegaIX Frankfurt2200GNo
MegaIX Los Angeles1100GNo
MegaIX Melbourne: MegaIX2200GNo
MegaIX Munich220GNo
MegaIX New York1100GNo
MegaIX Perth: MegaIX2200GNo
MegaIX Singapore1100GNo
MegaIX Sofia: MegaIX110GNo
MegaIX Sydney: MegaIX2200GNo
MegaIX Toronto: MegaIX1100GNo
MICE: Shared Peering2400GNo
MIX-IT2200GNo
MyIX2200GNo
Namex Rome: VLAN Peering2200GNo
NAPAfrica IX Cape Town2200GNo
NAPAfrica IX Johannesburg: Peering2400GNo
NAPAfrica MAPS Johannesburg2200GNo
NetIX: NetIX2200GNo
Netnod Copenhagen BLUE -- MTU9K: 9K-BLUE1100GNo
Netnod Copenhagen GREEN -- MTU9K: 9K-GREEN1100GNo
Netnod Stockholm BLUE -- MTU1500: STH-B -- MTU15001100GNo
Netnod Stockholm BLUE -- MTU4470: STH-B -- MTU44701100GNo
Netnod Stockholm GREEN -- MTU1500: STH-A -- MTU15001100GNo
Netnod Stockholm GREEN -- MTU4470: STH-A -- MTU44701100GNo
NIX.CZ: Public peering VLAN2200GNo
NIX1120GNo
NIXI Chennai2200GNo
NIXI Delhi220GNo
NIXI Mumbai1100GNo
NL-ix 22600GNo
NL-ix: Main4600GNo
NWAX: Primary Peering VLAN2200GNo
NYIIX New York1100GNo
OmahaIX2200GNo
Pacific Wave1100GNo
Peering.cz2200GNo
PIT - Colombia - Bogota220GNo
PIT MX2200GNo
PIT Santiago - PIT Chile: LAN2200GNo
QIX Qatar: Main1100GNo
SGIX: Peering LAN2200GNo
SH-IX110GNo
SIX Seattle: MTU 15002400GNo
SIX Stavanger240GNo
SLIX - Salt Lake City Internet Exchange2200GNo
SOX120GNo
STHIX - Stockholm: STH Peering240GNo
STUIX2200GNo
SwissIX: Peering2200GNo
THAILAND IX (TH-IX)2200GNo
THINX Warsaw2200GNo
TOP-IX: Public Peering VLAN140GNo
TorIX2400GNo
TPIX PL2200GNo
TPIX-TW2200GNo
UAE-IX: UAE-IX Peering LAN2400GNo
VANIX2200GNo
VIX2200GNo
Facilities 166
FacilityCityCountry
1623 Farnam - OmahaOmahaUS
165 Halsey Meet-Me RoomNewarkUS
2degrees Auckland - AlbanyAucklandNZ
Africa Data Centres, Johannesburg JHB1, South AfricaMidrandZA
Africa Data Centres, Nairobi NBO1, KenyaNairobiKE
AIMS Kuala LumpurKuala LumpurMY
Ascenty CPS01 - CampinasCampinasBR
AT TOKYO (CC1/CC2)TokyoJP
Bezeq International Sivim Data CenterPetah TikvaIL
Bharti Airtel SanthomeChennaiIN
Bulk Oslo Internet Exchange - OS-IXOsloNO
CDC Canberra FY1FyshwickAU
CDC Canberra HU1HumeAU
CE Colo PraguePragueCZ
center3 DMM2 - DammamDammamSA
Chief HD Building TaipeiTaipeiTW
CHT Taipei Banqiao IDCNew Taipei CityTW
Cirion Rio de Janeiro - RIO1Rio de JaneiroBR
Cirion Santiago de Chile - SAN1SantiagoCL
Cologix MIN1MinneapolisUS
Cologix MTL3MontrealCA
Cologix MTL7MontrealCA
Cologix TOR1TorontoCA
Cologix VAN1VancouverCA
CoreSite - Chicago (CH1)ChicagoUS
CoreSite - Denver (DE1)DenverUS
CoreSite - Los Angeles (LA1) One WilshireLos AngelesUS
CoreSite - Los Angeles (LA3)Los AngelesUS
CoreSite - Reston (VA1)RestonUS
CoreSite - Reston (VA3)RestonUS
CoreSite - Santa Clara (SV7)Santa ClaraUS
CyrusOne San AntonioSan AntonioUS
DATA4 Milan-Cornaredo - MIL1Cornaredo (MI)IT
Databank Houston West (HOU1) (HOU2)HoustonUS
Dataplex BudapestBudapestHU
DC1-StavangerRennesøyNO
DEEP Resilience Centre Luxembourg SouthKaylLU
Digital Realty AMS3/5/7/8/10 - AmsterdamAmsterdamNL
Digital Realty AMS9 - AmsterdamAmsterdamNL
Digital Realty ATH1/2/3 - AthensKoropiGR
Digital Realty ATL14 - AtlantaAtlantaUS
Digital Realty BRU1 - BrusselsBrusselsBE
Digital Realty BRU4 - BrusselsZaventemBE
Digital Realty CHI (350 E Cermak)ChicagoUS
Digital Realty Copenhagen CPH1-3CopenhagenDK
Digital Realty DFW (2323 Bryan St)DallasUS
Digital Realty Dublin DUB1-2DublinIE
Digital Realty Dusseldorf DUS1-3DüsseldorfDE
Digital Realty Frankfurt FRA1-27FrankfurtDE
Digital Realty LAX (600 W 7th)Los AngelesUS
Digital Realty London LHR20LondonGB
Digital Realty Madrid MAD1-2MadridES
Digital Realty Madrid MAD3MadridES
Digital Realty Marseille MRS1/2/3/4MarseilleFR
Digital Realty Paris PAR5ParisFR
Digital Realty Seattle SEA10SeattleUS
Digital Realty Stockholm STO1-6StockholmSE
Digital Realty VIE1/2 - ViennaViennaAT
Digital Realty Zagreb (ZAG1)ZagrebHR
Digital Realty Zurich ZUR1GlattbruggCH
DRFortress HNLHonoluluUS
EdgeConneX Detroit (EDCDET01)SouthfieldUS
EdgeConneX Jacksonville (EDCJAX01)JacksonvilleUS
EdgeConneX Las Vegas (EDCLAS01)Las VegasUS
EdgeConneX Munich (EDCMUC01)MunichDE
EdgeConneX Nashville (EDCNAS01)NashvilleUS
EdgeConneX Phoenix (EDCPHX01)TempeUS
EdgeConneX Portland (EDCPOR01)HillsboroUS
EdgeConneX Salt Lake City (EDCSLC01)Salt Lake CityUS
EdgeConneX Santiago (EDCSCL01)SantiagoCL
Equinix AM5 - Amsterdam, SchepenbergwegAmsterdamNL
Equinix AT1 - AtlantaAtlantaUS
Equinix AT2/AT3 - AtlantaAtlantaUS
Equinix BA1 - BarcelonaBarcelonaES
Equinix BG1 - BogotaBogotaCO
Equinix CH1/CH2/CH4 - ChicagoChicagoUS
Equinix DA6 - DallasDallasUS
Equinix DB1 - Dublin, CityWestDublinIE
Equinix DB3 - Dublin, BallycoolinDublinIE
Equinix DC1-DC15,DC21-DC22 - AshburnAshburnUS
Equinix DX1 - DubaiDubaiAE
Equinix FR7 - Frankfurt, GutleutstrasseFrankfurtDE
Equinix GV2 - Geneva, WestGenevaCH
Equinix HE3 - Helsinki, SuvilahtiHelsinkiFI
Equinix HE5 - Helsinki, ViikinmäkiHelsinkiFI
Equinix HK2 - Hong KongKwai ChungHK
Equinix IL2 - IstanbulIstanbulTR
Equinix LA1 - Los AngelesLos AngelesUS
Equinix LD5 - London, SloughSloughGB
Equinix LS1 - LisbonLisbonPT
Equinix MA1 - Manchester, Williams/KilburnManchesterGB
Equinix MD2 - MadridAlcobendasES
Equinix ME1/ME2 - MelbourneMelbourneAU
Equinix MI1 - Miami, NOTAMiamiUS
Equinix NY2/NY4/NY5/NY6 - New York, SecaucusSecaucusUS
Equinix NY9 - New York, 111 8th AvenueNew YorkUS
Equinix OS1 - OsakaOsakaJP
Equinix PA4 - Paris, PantinParisFR
Equinix RJ2 - Rio de JaneiroRio de JaneiroBR
Equinix SG1 - SingaporeSingaporeSG
Equinix SK1 - Stockholm, BrommaStockholmSE
Equinix SP2 - São PauloBarueriBR
Equinix SP4 - São PauloBarueriBR
Equinix SV1/SV5/SV10 - Silicon Valley, San JoseSan JoseUS
Equinix SY1/SY2 - SydneySydneyAU
Equinix TY4 - TokyoTokyoJP
Equinix WA1 - Warsaw, Centrum LIMWarsawPL
Equinix WA2 - WarsawWarsawPL
Equinix ZH5 - Zurich, SouthZurichCH
Global Switch AmsterdamAmsterdamNL
Global Switch SingaporeSingaporeSG
GlobalConnect Taastrup 1 (CPH1)TaastrupDK
Hyperscale Data Center (HDC)Kabupaten BekasiID
Intergate.QuincyQuincyUS
KINX GasanSeoulKR
KIO Querétaro 1 (QRO1)El MarquesMX
kt cloud Mokdong(MD2)Yangcheon-guKR
LCL Brussels (Diegem)BrusselsBE
LG CNS BusanBusanKR
Markley Group One Summer Street BostonBostonUS
Mayoral Drive Exchange (MDR)AucklandNZ
Meeza Data Center - MV2DohaQA
MEGA-i (iAdvantage Hong Kong)Hong KongHK
Namex Datacenter RomeRomeIT
NEXTDC B2Fortitude ValleyAU
NEXTDC M1MelbourneAU
NEXTDC P1MálagaAU
NEXTDC P2PerthAU
NEXTDC S1SydneyAU
NTT Berlin 1 Data Center (BER1)BerlinDE
NTT DOCOMO BUSINESS OS3 - Osaka (Telepark Dojima Building 3)OsakaJP
NTT Jakarta 2 Data Center (JKT2)JakartaID
NTT Vienna1 Data Center (VIE1)ViennaAT
NXDATA-1 Bucharest (BUH1)BucharestRO
Nxtra Data Mumbai DC 2MumbaiIN
Pacheco Datacenter EZE1 Argentina Buenos AiresBuenos AiresAR
PhoenixNAPPhoenixUS
Qatar Data Center 5DohaQA
Rack Centre LagosIkejaNG
Regional Data Hub (RDH)GizaEG
Retelit Avalon 1MilanIT
SCSK netXDC (SI1/SI2/SI3)/NEC Inzai DCInzai-shiJP
SDS1 ModiinModiin, Macabim- ReutIL
Sify Global Delivery Center (Hyderabad)NanakaramgudaIN
STTGDC PNQ1PuneIN
Switch Las VegasLas VegasUS
TATA Communications - Piti Cable Landing StationPitiGU
TATA Communications ChennaiChennaiIN
TATA Communications GK1New DelhiIN
TATA Communications MumbaiMumbaiIN
TATA Communications VSB HyderabadHyderabadIN
Tecto TFOR1/2 (ex Globenet CLS & Big Lobster)FortalezaBR
Telehouse - London (Docklands North Two)LondonGB
Telehouse - Paris 2 (Voltaire - Léon Frot)ParisFR
Telehouse Toronto (905 King Street West)TorontoCA
TELEPOINT Sofia CentreSofiaBG
Tellus Data CenterPathum ThaniTH
Teraco CT1 Cape Town, South AfricaCape TownZA
Teraco Johannesburg Campus, South AfricaJohannesburgZA
TIVIT Sao PauloSão PauloBR
TM ONE KVDC, CyberjayaCyberjayaMY
Triara QueretaroSantiago de QuerétaroMX
Vantage Data Centers (QC2)QuebecCA
Vaultica Data Centers | OSL01OsloNO
Viettel HHTHo Chi Minh CityVN
VITRO Makati 2MakatiPH

More about AS8075

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-12 16:05 UTC. The country is where the AS number was registered, not necessarily where the network operates.