Data as of Nov 8, 2026
81.6.140.0/24
No anonymizer space · no proxy exits in 30 daysMariusz Ufel trading as N3T Projekt · space held by Kielce University of Technology
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 81.6.140.0/22 since Jun 2018 | AS30778 | Business | 9 | Kielce University of Technology |
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 |
|---|---|---|---|---|---|---|
| 81.6.128.0/18 | 16,384 | PL-KUOT-20020624 | Kielce University of Technology (ORG-KUOT1-RIPE) · PL | ALLOCATED PA | Jun 24, 2002 | abuse@ |
| └ 81.6.140.0/24 | 256 | N3T | N3T Projekt | ASSIGNED PA | Nov 10, 2025 | abuse@ via PL-KUOT-20020624 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Kielce University of Technology
- Handle
- ORG-KUOT1-RIPE
- Range
- 81.
6. 128. 0/ 18 - Registration type
- ALLOCATED PA
- Record created
- Jun 24, 2002
Origin network
AS43386
PL
- Name
- Mariusz Ufel trading as N3T Projekt
- Type
- Internet provider
- Registered
- Jan 18, 2017
- Domain
- n3t.pl
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 2025
- Current origin since
- Nov 2025 · 12 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.6.140.0/24 | AS43386 | /24 | RIPE | RPKI valid |
| 81.6.140.0/22 | AS30778 | /22 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS43386 | RIPE | N3T Projekt | KUT-PL | Nov 10, 2025 |
Whois
Registration for this announcement
- Range
- 81.
6. 140. 0/ 24 - Netname
- N3T
- Registrant
- N3T Projekt
- Registrant country
- PL
- Organization
- N3T Projekt
- Org country
- PL
- Type
- ASSIGNED PA
- Created
- Nov 10, 2025
- Updated
- Nov 10, 2025
- Maintainer
- KUT-PL
- RIR
- RIPE NCC
- Country
- PL
- Delegated
- Jun 24, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
man. kielce. pl - Name
- Kielman NOC
- Handle
- KIE8-RIPE