Data as of Nov 8, 2026
212.87.239.0/24
No anonymizer space · no proxy exits in 30 daysPolitechnika Czestochowska
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 |
|---|---|---|---|---|---|---|
| 212.87.224.0/19 | 8,192 | PL-CZESTMAN-20000519 | Politechnika Czestochowska (ORG-PC2-RIPE) · PL | ALLOCATED PA | — | abuse@ |
| └ 212.87.239.0/24 | 256 | UJD-EDUROAM-239-PL | Uniwersytet Jana Dlugosza w Czestochowie (ORG-AJD1-RIPE) | ASSIGNED PA | Jul 2, 2015 | abuse@ |
Network & registry
Announced by
Covering announcement 212.87.238.0/23
- Prefix
- 212.87.238.0/23
- Announced by
- AS15373 Politechnika Czestochowska
- Type
- Business
- Proxy exits
- 6
- RPKI
- RPKI valid
- Netname
- PL-CZESTMAN-20000519
- Registrant
- Politechnika Czestochowska
- RIR
- RIPE NCC
Origin network
AS15373
PL
- Name
- Politechnika Czestochowska
- Type
- Education
- Registered
- Jun 7, 2000
- Domain
- pcz.pl
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 212.87.238.0/23
212.87.238.0/23
Routing history
- Pattern
- Stable
- First seen
- Mar 2006
- Current origin since
- Mar 2006 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 212.87.238.0/23 | AS15373 | /23 | RIPE | RPKI valid |
IRR
Route objects on 212.87.238.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS15373 | RIPE | The networks of educational, scientific, governmental | PL-CZESTMAN-MNT | Apr 2, 2026 |
Whois
Registration for this announcement
- Range
- 212.
87. 224. 0/ 19 - Netname
- PL-CZESTMAN-20000519
- Registrant
- Politechnika Czestochowska
- Registrant country
- PL
- Organization
- Politechnika Czestochowska (ORG-PC2-RIPE)
- Org country
- PL
- Type
- ALLOCATED PA
- Created
- Not stated by the registry
- Updated
- Oct 27, 2023
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- PL
- Delegated
- May 19, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
man. pcz. pl - Name
- CzestMAN Operations
- Handle
- CZ512-RIPE