Data as of Nov 10, 2026
151.207.44.0/22
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by United States Patent and Trademark Office
Network & registry
Origin network
AS12076
US
- Name
- Microsoft Corporation
- Type
- Business
- Registered
- Mar 16, 1999
- Domain
- microsoft.com
- Industry
- Other
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2024
- Current origin since
- Feb 2024 · 2.7 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 151.
207. 0. 0/ 16 - Netname
- PTONET
- Registrant
- United States Patent and Trademark Office
- Organization
- United States Patent and Trademark Office (USPTO)
- Org address
- 600 Dulaney Street, Alexandria, VA, 22314
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-151-207-0-0-1
- Parent
- NET-151-0-0-0-0
- Created
- Sep 25, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 25, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
uspto. gov - Name
- Chief Watch Officer
- Phone
- +1-571-272-6700
- Handle
- CWO91-ARIN