Microsoft Corporation
AS5761 is Microsoft Corporation (microsoft.com). It announces 256 IPv4 addresses in 1 prefix, and 1 IPv6 prefix.
United States· ARIN· allocated 1995-10-12· Hosting
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States256 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- MICROSOFT-CORP-MSN-AS-SATURN
- name
- Microsoft Corporation
- org
- MSFT
- org name
- Microsoft Corporation
- org address
- One Microsoft Way, Redmond, WA, 98052
- org city
- Redmond
- org country
- US
- country
- US
- source
- arin
- created
- 1995-10-12
- updated
- 2013-08-20
- abuse name
- Microsoft Abuse Contact
- abuse email
- abuse@microsoft.com
- abuse phone
- +1-425-882-8080
- abuse kind
- role
- abuse city
- Redmond
- abuse country
- US
- admin name
- IPHostmaster IPHostmaster
- admin email
- iphostmaster@microsoft.com
- admin phone
- +1-425-538-6637
- admin kind
- person
- admin city
- Redmond
- admin country
- US
- tech name
- Dawn Bedard
- tech email
- dabedard@microsoft.com
- tech phone
- +1-425-538-6637
- tech kind
- person
- tech city
- Redmond
- tech country
- US
- abuse validated
- 1
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- 3.13%
- None here
- None here
- None here
- None here
- None here
- None here
- Hosting IP256Microsoft Azure100.00%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 2.73%
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 157.58.216.0/24 | United States | Valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:4898:b080::/48 | United States | Valid | 19 | 2026-10-02 |
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