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

Everything the routing table and the registries say about AS8075: who holds it, which registry issued it, and which address blocks it advertises.

Cloud and platformAS8075

1194 IPv4 and 115 IPv6 prefixes announced.

Registry facts

Refreshed daily
AS number
AS8075
Holder
MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
Country
US
Regional registry
ARIN — American Registry for Internet Numbers
Registry block
7723-8191 (IANA 16-bit Autonomous System (AS) Numbers Registry)
Announced today
Yes
IPv4 prefixes
1194
IPv6 prefixes
115
Observed at
2026-09-05T16:00:00

Data: RIPEstat. Prefix and holder data comes from the RIPEstat Data API and is cached for 24 hours. The regional registry is derived from the IANA AS number allocation table. Authoritative registry records are served by ARIN RDAP.

Announced prefixes

1194 IPv4 · 115 IPv6
  • 100 IPv4 shown
  • 100 IPv6 shown
  • 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
  • 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
  • 40.66.128.0/17
  • 2001:3bc0:b1d::/48
  • 2001:67c:4f8::/48
  • 2001:698::/48
  • 2001:698:1::/48
  • 2001:df0:59c0::/48
  • 2001:df0:7::/48
  • 2001:df0:d7::/48
  • 2001:df0:d8::/48
  • 2001:df0:d9::/48
  • 2401:ef40::/48
  • 2402:7d80::/48
  • 2402:7d80:8888::/48
  • 2404:f800::/32
  • 2404:f802::/31
  • 2407:30c0:184::/48
  • 2407:30c0:186::/48
  • 2602:801:600a::/48
  • 2602:812:200a::/48
  • 2602:f36c:fff::/48
  • 2602:f73e::/48
  • 2602:f742::/48
  • 2602:f742:1::/48
  • 2602:f742:2::/48
  • 2602:f742:3::/48
  • 2602:f742:3f::/48
  • 2602:f742:5::/48
  • 2602:f7be:102::/48
  • 2602:f8c6:20::/48
  • 2602:f8d5:a0::/48
  • 2602:f8d5:a1::/48
  • 2602:f8d5:a3::/48
  • 2602:f8d5:a6::/48
  • 2602:f8d5:a8::/48
  • 2602:fc31:4::/48
  • 2602:fdeb:50::/48
  • 2602:fdeb:52::/48
  • 2602:fdeb:53::/48
  • 2602:fdeb:54::/48
  • 2602:fdeb:55::/48
  • 2602:fdeb:61::/48
  • 2602:fdeb:62::/48
  • 2602:fdeb:63::/48
  • 2602:fdeb:64::/48
  • 2603:1000::/25
  • 2603:1061:6::/48
  • 2603:1062:3::/48
  • 2603:1062:4::/48
  • 2604:d890:3::/48
  • 2604:e700:41::/48
  • 2606:50c0:c0de::/48
  • 2606:e540:c00::/48
  • 2606:e540:c01::/48
  • 2606:e540:c04::/48
  • 2607:33c0:a0::/48
  • 2607:9240:40::/48
  • 2607:9240:41::/48
  • 2607:9240:43::/48
  • 2607:9240:44::/48
  • 2607:9240:47::/48
  • 2607:9240:48::/48
  • 2607:9240:49::/48
  • 2607:9240:4a::/48
  • 2620:0:30::/45
  • 2620:119:5077::/48
  • 2620:12c:9005::/48
  • 2620:12c:90b0::/48
  • 2620:12c:90c1::/48
  • 2620:147:d11::/48
  • 2620:1ec::/36
  • 2620:1ec:25::/48
  • 2620:1ec:9::/48
  • 2620:7d:d::/48
  • 2620:7d:e::/48
  • 2620:7d:f::/48
  • 2620:b1:e000::/48
  • 2620:bc:2000::/48
  • 2801:80:1d0::/48
  • 2a00:1c68::/29
  • 2a01:111::/32
  • 2a01:111:2000::/36
  • 2a01:111:4000::/36
  • 2a01:111:4004::/48
  • 2a01:111:f000::/36
  • 2a02:d21::/48
  • 2a03:52a0:183::/48
  • 2a04:9a00:1480::/48
  • 2a04:9a00:1484::/48
  • 2a04:9a00:1488::/48
  • 2a04:9a00:148c::/48
  • 2a04:b0c0:10::/48
  • 2a04:b0c0:11::/48
  • 2a04:b0c0:12::/48
  • 2a04:b0c0:13::/48
  • 2a05:6340:400::/48
  • 2a05:c341::/48
  • 2a05:e100:a::/48
  • 2a05:f500:2::/48
  • 2a07:3502:1191::/48
  • 2a07:54c4:1756::/48
  • 2a0a:d685:1fc::/48

A prefix here is a block this AS was seen originating in BGP, not a block it is guaranteed to own. Announcement and allocation are different facts, and they disagree more often than people expect.

Registry record

arin
FieldValue
ASNumber8068 - 8075
ASNameMICROSOFT-CORP-MSN-AS-BLOCK
ASHandle8068
RegDate1997-03-31
Refhttps://rdap.arin.net/registry/autnum/8068
sourceARIN
OrgAbuseHandleMAC74-ARIN
OrgAbuseNameMicrosoft Abuse Contact
OrgAbusePhone+1-425-882-8080
OrgAbuseEmailabuse@microsoft.com
OrgAbuseRefhttps://rdap.arin.net/registry/entity/MAC74-ARIN
sourceARIN
OrgNameMicrosoft Corporation
OrgIdMSFT
AddressOne Microsoft Way
CityRedmond
StateProvWA
PostalCode98052
CountryUS
RegDate1998-07-10
CommentTo 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.
CommentFor SPAM and other abuse issues, such as Microsoft Accounts, please contact:
Comment* abuse@microsoft.com.

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