Data as of Nov 9, 2026
147.125.250.0/24
Anonymizer · ISP proxyTelstra Global · space held by International Institute for Applied Systems Analysis
IPv4 market
Path
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 147.125.250.0/24 | /24s |
|---|---|---|
| IPXO | 256100% | 1 |
Leased from
Owners leasing their own space
| Name | In 147.125.250.0/24 | /24s |
|---|---|---|
| International Institute for Applied Systems Analysis | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
147.125.250.0/24
From the registry to its use
- Feb 24, 2026– Mar 31, 2026
- Apr 1, 2026Route objectIPXORIPE route object for AS4637 Telstra Global, maintainer NETUTILS-MNT
- Apr 1, 2026Route objectIPXORADB route object for AS4637 Telstra Global, maintainer MAINT-AS834
- Apr 1, 2026Route objectIPXORIPE route object for AS9304 HGC Global Communications Limited, maintainer NETUTILS-MNT
- Apr 1, 2026Route objectIPXORADB route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS834
- Apr 1, 2026Route objectIPXORIPE route object for AS398465 Rackdog, LLC, maintainer NETUTILS-MNT
- Apr 1, 2026Route objectIPXORADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS834
- Apr 1, 2026– today
- todayRegistry recordInternational Institute for Applied Systems AnalysisLEGACY147.125.0.0/16
- todayLeased fromIPXOIP broker
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@ |
| └ 147.125.128.0/17 | 32,768 | IIASA | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Aug 14, 2025 | report@ |
| └ 147.125.250.0/23 | 512 | KOREA-TELECOM | unknown | LEGACY | Oct 17, 2025 | report@ |
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
AS4637
HK
- Name
- Telstra Global
- Type
- Internet provider
- Registered
- Oct 30, 1995
- Domain
- telstrainternational.com
- Website
- www.telstrainternational.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Feb 2026
- Current origin since
- Apr 2026 · 7 mo
- Origin networks
- 2
- Last change of origin
- Apr 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4637 | RIPE | NETUTILS-MNT | Apr 1, 2026 | |
| AS4637 | RADB | autogen | MAINT-AS834 | Apr 1, 2026 |
| AS9304 not the origin | RIPE | NETUTILS-MNT | Apr 1, 2026 | |
| AS9304 not the origin | RADB | autogen | MAINT-AS834 | Apr 1, 2026 |
| AS398465 not the origin | RIPE | NETUTILS-MNT | Apr 1, 2026 | |
| AS398465 not the origin | RADB | autogen | MAINT-AS834 | Apr 1, 2026 |
Whois
Registration for this announcement
- Range
- 147.
125. 250. 0/ 23 - Netname
- KOREA-TELECOM
- Registrant country
- KR
- Organization
- Not stated by the registry
- Type
- LEGACY
- Created
- Oct 17, 2025
- Updated
- Apr 14, 2026
- Maintainer
- IPXO-MNT
- RIR
- RIPE NCC
- Country
- AT
- Delegated
- Apr 1, 1991
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Internet Utilities Abuse Contact
- Handle
- AR834