Data as of Nov 3, 2026
147.140.0.0/18
No anonymizer space · no proxy exits in 30 daysThomas Jefferson University Hospitals, Inc. · space held by Thomas Jefferson University
Network & registry
Origin network
AS22644
US
- Name
- Thomas Jefferson University Hospitals, Inc.
- Type
- Education
- Registered
- Oct 29, 2001
- Domain
- jefferson.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jul 2020
- Current origin since
- Jul 2020 · 6.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 147.140.0.0/16 | AS22644 | /32 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS22644 | RADB | MAINT-AS27506 | Sep 3, 2025 |
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
- [email protected]
- Name
- Abuse
- Phone
- +1-215-955-7975
- Handle
- ABUSE8441-ARIN