Data as of Nov 15, 2026
147.73.5.0/24
No anonymizer space · no proxy exits in 30 daysPittsburgh Supercomputing Center
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Sep 18, 2026
from AS5050 Pittsburgh Supercomputing Center, after 4.8 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 147.73.0.0/16 since Apr 2006 | AS5050 | Business | Pittsburgh Supercomputing Center |
Network & registry
Origin network
AS5050
US
- Name
- Pittsburgh Supercomputing Center
- Type
- Education
- Registered
- Mar 29, 1995
- Domain
- psc.edu
- Website
- www.3rox.net
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2012
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 147.73.5.0/24 | AS5050 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 147.
73. 0. 0/ 16 - Netname
- PSC-TRANSIT-SUBNET
- Registrant
- Pittsburgh Supercomputing Center
- Organization
- Pittsburgh Supercomputing Center (PSC-Z)
- Org address
- 300 S Craig St, Pittsburgh, PA, 15213
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-147-73-0-0-1
- Parent
- NET-147-0-0-0-0
- Created
- Jul 5, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 5, 1991
- Status
- assigned
Report abuse
Abuse contact
- pscnet-admin@
psc. edu - Name
- Pittsburgh Supercomputing Center
- Phone
- +1-412-268-4960
- Handle
- PN-ORG-ARIN