Data as of Nov 5, 2026
164.138.4.0/24
No anonymizer space · no proxy exits in 30 daysXTDef Limited · space held by Nameto Oy
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
40 / 100 · Medium
Leased space · Recently moved
Recent change
New origin Sep 2026
from AS198588 Hangzhou Tungsten Cloud Technology Co., Ltd., after 1.7 years unannounced
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
164.138.4.0/24
From the registry to its use
- Mar 21, 2012– Nov 25, 2017
- May 21, 2021– Dec 18, 2024
- Dec 20, 2024Registry recordNameto OyALLOCATED PA164.138.0.0/20
- Sep 16, 2026– today
- Sep 25, 2026AssignedXTDEF-LimitedASSIGNED PA164.138.4.0/24
- Sep 25, 2026Route objectAS203997 XTDef LimitedRIPE route object for AS203997 XTDef Limited, maintainer INTERLIR-MNT
- todayLeased fromInterLIRLessor
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 |
|---|---|---|---|---|---|---|
| 164.138.0.0/20 | 4,096 | FI-NAMETO-20120316 | Nameto Oy (ORG-NO59-RIPE) · FI | ALLOCATED PA | Dec 20, 2024 | ripe-abuse@ |
| └ 164.138.4.0/24 | 256 | XTDef-Limited | XTDEF-Limited (ORG-XA175-RIPE) · HK | ASSIGNED PA | Sep 25, 2026 | ripe@ |
Network & registry
IPv4 market
Holder
- Organization
- Nameto Oy
- Handle
- ORG-NO59-RIPE
- Range
- 164.
138. 0. 0/ 20 - Registration type
- ALLOCATED PA
- Record created
- Dec 20, 2024
Origin network
AS203997
HK
- Name
- XTDef Limited
- Type
- Hosting
- Registered
- Nov 5, 2025
- Domain
- xtdef.com
- Website
- publicdata.xtdef.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Mar 2012
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Sep 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 164.138.4.0/24 | AS203997 | /24 | RIPE | RPKI valid |
| 164.138.0.0/20 | AS0 | /32 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS203997 | RIPE | INTERLIR-MNT | Sep 25, 2026 |
Whois
Registration for this announcement
- Range
- 164.
138. 4. 0/ 24 - Netname
- XTDef-Limited
- Registrant
- XTDEF-Limited
- Registrant country
- FI
- Organization
- XTDEF-Limited (ORG-XA175-RIPE)
- Org country
- HK
- Type
- ASSIGNED PA
- Created
- Sep 25, 2026
- Updated
- Oct 1, 2026
- Maintainer
- interlir-mnt
- RIR
- RIPE NCC
- Country
- FI
- Delegated
- Mar 16, 2012
- Status
- assigned
Report abuse
Abuse contact
- ripe@
interlir. com - Name
- Abuse contact role object
- Handle
- ACRO45564-RIPE