Data as of Nov 10, 2026
83.212.136.0/21
1 residential-proxy exit · 30 daysDemocritus University of Thrace · space held by National Infrastructures for Research and Technology S.A.
Residential-proxy exits
Proxy exits
1
0.05% of its addresses · 30 days
Spread
1 of 8
/24s with at least one exit
Providers
1
selling exits here
Oct 11, 2026 – Nov 9, 2026
Exits seen per day
6 observations
Proxy providers listing exits
- FastProxy
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 83.212.0.0/16 since Dec 2005 | AS5408 | Business | 359 7 always on | National Infrastructures for Research and Technology S.A. |
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 |
|---|---|---|---|---|---|---|
| 83.212.0.0/16 | 65,536 | GR-GRNET-20040317 | National Infrastructures for Research and Technology S.A. (ORG-GRAT1-RIPE) · GR | ALLOCATED PA | Mar 17, 2004 | abuse@ |
| └ 83. | 10,240 | DUTHNET | Democritus University of Thrace | ASSIGNED PA | Feb 12, 2010 | noc@ |
Network & registry
Announced by
Covering announcement 83.212.128.0/19
- Prefix
- 83.212.128.0/19
- Announced by
- AS8253 Democritus University of Thrace
- Type
- Business
- Proxy exits
- 74
- RPKI
- RPKI valid
- Netname
- DUTHNET
- Registrant
- Democritus University of Thrace
- RIR
- RIPE NCC
Registry
Holder
- Organization
- National Infrastructures for Research and Technology S.A.
- Handle
- ORG-GRAT1-RIPE
- Range
- 83.
212. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Mar 17, 2004
Origin network
AS8253
GR
- Name
- Democritus University of Thrace
- Type
- Education
- Registered
- Mar 27, 1997
- Domain
- duth.gr
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
83.212.128.0/19
Routing history
- Pattern
- Stable
- First seen
- Dec 2007
- Current origin since
- Feb 2020 · 6.7 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 83.212.128.0/19 | AS8253 | /19 | RIPE | RPKI valid |
| 83.212.0.0/16 | AS5408 | /24 | RIPE | Another network |
IRR
Route objects on 83.212.128.0/19
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS8253 | RIPE | DUTHNET | AS8253-MNT | Nov 26, 2007 |
Whois
Registration for this announcement
- Range
- 83.
212. 128. 0 - 83. 212. 167. 255 - Netname
- DUTHNET
- Registrant
- Democritus University of Thrace
- Registrant country
- GR
- Organization
- Democritus University of Thrace
- Org country
- GR
- Type
- ASSIGNED PA
- Created
- Feb 12, 2010
- Updated
- Jan 12, 2018
- Maintainer
- GRNET-NOC
- RIR
- RIPE NCC
- Country
- GR
- Delegated
- Mar 17, 2004
- Status
- assigned
Report abuse
Abuse contact
- noc@
duth. gr - Name
- DUTHnet NOC
- Handle
- DN3905-RIPE