Data as of Nov 7, 2026
147.140.74.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Thomas Jefferson University
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
- Mar 2026
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 147.140.74.0/24 | AS8075 | /24 | ARIN | RPKI valid |
| 147.140.0.0/16 | AS22644 | /32 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 147.
140. 0. 0/ 16 - Netname
- TJU
- Registrant
- Thomas Jefferson University
- Organization
- Thomas Jefferson University (TJU-2-Z)
- Org address
- 833 Chestnut Street, Suite 600, Philadelphia, PA, 19107
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-147-140-0-0-1
- Parent
- NET-147-0-0-0-0
- Created
- Apr 10, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 10, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
jefferson. edu - Name
- Abuse
- Phone
- +1-215-955-7975
- Handle
- ABUSE8441-ARIN