Data as of Nov 9, 2026
66.203.254.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Williams Mullen
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
- Stable
- First seen
- Apr 2026
- Current origin since
- Apr 2026 · 7 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 66.
203. 254. 0/ 24 - Netname
- WMCDP
- Registrant
- Williams Mullen
- Organization
- Williams Mullen (WMCDP)
- Org address
- 200 South 10th Street, Suite 1600, Richmond, VA, 23219
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-203-254-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Apr 3, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 3, 2026
- Status
- assigned
Report abuse
Abuse contact
- rdubois@
williamsmullen. com - Name
- DuBois, Robert
- Phone
- +1-804-420-6264
- Handle
- DUBOI36-ARIN