Data as of Nov 15, 2026
147.125.0.0/17
No anonymizer space · no proxy exits in 30 daysInternational Institute for Applied Systems Analysis
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 147.125.0.0/16 | 65,536 | IIASA | International Institute for Applied Systems Analysis (ORG-IIFA6-RIPE) · AT | LEGACY | — | cert@ |
| └ 147.125.0.0/17 | 32,768 | IIASA | International Institute for Applied Systems Analysis (ORG-IIFA6-RIPE) · AT | LEGACY | Aug 14, 2025 | cert@ |
Network & registry
IPv4 market
Holder
- Organization
- International Institute for Applied Systems Analysis
- Handle
- ORG-IIFA6-RIPE
- Range
- 147.
125. 0. 0/ 16 - Registration type
- LEGACY
- Legacy
- yes
Origin network
AS2488
AT
- Name
- International Institute for Applied Systems Analysis
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- iiasa.ac.at
- 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
- Jun 2025
- Current origin since
- Jun 2025 · 1.4 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 147.
125. 0. 0/ 17 - Netname
- IIASA
- Registrant
- International Institute for Applied Systems Analysis
- Registrant country
- AT
- Organization
- International Institute for Applied Systems Analysis (ORG-IIFA6-RIPE)
- Org country
- AT
- Type
- LEGACY
- Created
- Aug 14, 2025
- Updated
- Aug 14, 2025
- Maintainer
- ACONET-LIR-MNT
- RIR
- RIPE NCC
- Country
- AT
- Delegated
- Apr 1, 1991
- Status
- assigned
Report abuse
Abuse contact
- cert@
aco. net - Name
- Abuse-C Role
- Handle
- AR24983-RIPE