Data as of Nov 8, 2026
212.87.238.0/24
6 residential-proxy exits · 30 daysPolitechnika Czestochowska
Residential-proxy exits
Proxy exits
6
2.3% of its addresses · 30 days
Providers
24
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
69 observations
Proxy providers listing exits
- 2Extract
- Ake.net
- BirdProxies
- ByteProxies
- Byteful
- FlashProxy
- FlexyProxies
- GSocks
- Geonix
- GonzoProxy
- Infatica
- LemonLabs
- LemonPrime
- MangoProxy
- NodeProxy
- NovaProxy
- PROXYWING_BASIC
- Proxy-Seller
- ProxyEmpire
- Proxyma
- RainProxy
- Shifter
- Thordata
- VitalExclusive
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@ |
| └ 212.87.238.0/28 | 16 | PL-WSL-CZEST | The Network of Wyzsza Szkola Lingwistyczna w Czestochowie | ASSIGNED PA | Jan 28, 2011 | abuse@ via PL-CZESTMAN-20000519 |
| └ 212.87.238.16/28 | 16 | PL-TZN-CZEST-NET | The Network of TZN School, Czestochowa | ASSIGNED PA | Dec 29, 2006 | abuse@ via PL-CZESTMAN-20000519 |
| └ 212.87.238.32/28 | 16 | PL-TRAUG-CZEST-NET | The Network of TRAUGUTT School, Czestochowa | ASSIGNED PA | Feb 21, 2007 | abuse@ via PL-CZESTMAN-20000519 |
| └ 212.87.238.48/28 | 16 | PL-WOM-CZEST | The Network of Regionalny Osrodek Doskonalenia Nauczycieli | ASSIGNED PA | Jul 1, 2010 | abuse@ via PL-CZESTMAN-20000519 |
| └ 212.87.238.64/26 | 64 | PL-WSZ-CZEST | The Network of Wyzsza Szkola Zarzadzania w Czestochowie | ASSIGNED PA | Jun 10, 2009 | abuse@ via PL-CZESTMAN-20000519 |
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 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