Data as of Nov 6, 2026
143.233.54.0/24
No anonymizer space · no proxy exits in 30 daysNational Center of Scientific Research DEMOKRITOS
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 143.233.0.0/16 | 65,536 | Ariadne-t_ | National Center of Scientific Research DEMOKRITOS (ORG-NCOS1-RIPE) · GR | LEGACY | — | noc@ |
| └ 143.233.54.0/24 | 256 | AUA-NET | Agricultural University of Athens | LEGACY | — | noc@ via Ariadne-t_Network |
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
Announced by
Covering announcement 143.233.0.0/16
- Prefix
- 143.233.0.0/16
- Announced by
- AS2546 National Center of Scientific Research DEMOKRITOS
- Type
- Business
- Proxy exits
- 29
- RPKI
- No RPKI
- Netname
- Ariadne-t_
Network - Registrant
- National Center of Scientific Research DEMOKRITOS
- RIR
- RIPE NCC
Origin network
AS2546
GR
- Name
- National Center of Scientific Research DEMOKRITOS
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- ariadne-t.gr
- Industry
- Online Informational Content
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 143.233.0.0/16
143.233.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on 143.233.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2546 | RIPE | Ariadne-t Network | AS2546-MNT | Aug 26, 2026 |
Whois
Registration for this announcement
- Range
- 143.
233. 0. 0/ 16 - Netname
- Ariadne-t_
Network - Registrant
- National Center of Scientific Research DEMOKRITOS
- Registrant country
- GR
- Organization
- National Center of Scientific Research DEMOKRITOS (ORG-NCOS1-RIPE)
- Org country
- GR
- Type
- LEGACY
- Created
- Not stated by the registry
- Updated
- Aug 26, 2026
- Maintainer
- RIPE-NCC-LEGACY-MNT
- RIR
- RIPE NCC
- Country
- GR
- Delegated
- Oct 23, 1990
- Status
- assigned
Report abuse
Abuse contact
- noc@
ariadne-t. gr - Name
- Abuse-C Role
- Handle
- AR37119-RIPE