Data as of Nov 15, 2026
81.186.76.0/24
No anonymizer space · no proxy exits in 30 daysComputer Technology Institute and Press 'Diophantus'
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Sep 18, 2026
from AS8248 Computer Technology Institute and Press 'Diophantus'
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 81.186.0.0/17 since May 2005 | AS8248 | Business | 376 | Computer Technology Institute and Press "Diophantus" |
Network & registry
Origin network
AS8248
GR
- Name
- Computer Technology Institute and Press 'Diophantus'
- Type
- Education
- Registered
- Nov 18, 1999
- Domain
- sch.gr
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2020
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.186.0.0/17 | AS8248 | /24 | RIPE | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS8248 | RIPE | GR-EDUNET | GR-EDUNET-NOC | Nov 23, 2020 |
Whois
Registration for this announcement
- Range
- 81.
186. 0. 0 - 81. 186. 223. 255 - Netname
- GR-EDUNET
- Registrant
- Computer Technology Institute and Press "Diophantus"
- Registrant country
- GR
- Organization
- Computer Technology Institute and Press "Diophantus" (ORG-GHIN1-RIPE)
- Org country
- GR
- Type
- ASSIGNED PI
- Created
- Jan 11, 2003
- Updated
- Jul 24, 2025
- Maintainer
- GR-EDUNET-NOC
- RIR
- RIPE NCC
- Country
- GR
- Delegated
- Jan 11, 2003
- Status
- assigned
Report abuse
Abuse contact
- abuse@
sch. gr - Name
- Abuse-C Role
- Handle
- AR20144-RIPE