Data as of Nov 11, 2026
203.2.221.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Dun & Bradstreet (Australia) Pty Ltd
Network & registry
Origin network
AS8075
US
- Name
- Microsoft Corporation
- Type
- Hosting
- Registered
- Mar 31, 1997
- Domain
- microsoft.com
- Website
- www.microsoft.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Oct 2025 · 1.1 yr
- Origin networks
- 4
- Last change of origin
- Oct 2025
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.2.221.0/24 | AS8075 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 203.
2. 220. 0/ 22 - Netname
- DBAPIC-AU
- Registrant
- Dun & Bradstreet (Australia) Pty Ltd
- Registrant country
- AU
- Organization
- Not stated by the registry
- Type
- ASSIGNED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jun 17, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- AU
- Delegated
- Feb 11, 1994
- Status
- assigned
Report abuse
Abuse contact
- dbaitinfrastructure@
dnb. com. au - Name
- ABUSE DNBNONAU
- Handle
- AD738-AP