Data as of Nov 6, 2026
212.87.237.0/24
13 residential-proxy exits · 30 daysPolitechnika Czestochowska
Residential-proxy exits
Proxy exits
13
5.1% of its addresses · 30 days
Providers
15
selling exits here
Oct 7, 2026 – Nov 5, 2026
Exits seen per day
32 observations
Proxy providers listing exits
- 2Extract
- BirdProxies
- Byteful
- CliProxy
- EnigmaProxy
- GSocks
- Geonix
- Infatica
- MangoProxy
- NodeProxy
- NovaProxy
- ProxyEmpire
- Proxyma
- Shifter
- VantageProxies
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@ |
| └ 212.87.237.0/24 | 256 | PCZ-EDUROAM-2-PL | Politechnika Czestochowska (ORG-PC2-RIPE) · PL | ASSIGNED PA | Oct 31, 2013 | abuse@ |
Network & registry
Announced by
Covering announcement 212.87.236.0/23
- Prefix
- 212.87.236.0/23
- Announced by
- AS15373 Politechnika Czestochowska
- Type
- Business
- Proxy exits
- 22
- 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 212.87.236.0/23
212.87.236.0/23
Routing history
- Pattern
- Stable
- First seen
- Dec 2012
- Current origin since
- Dec 2012 · 14 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 212.87.236.0/23 | AS15373 | /23 | RIPE | RPKI valid |
IRR
Route objects on 212.87.236.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS15373 | RIPE | The network of Czestochowa University of Technology | 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