Data as of Nov 8, 2026
212.87.234.0/23
No anonymizer space · no proxy exits in 30 daysPolitechnika Czestochowska
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, 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. | 768 | UJD-NET | Uniwersytet Jana Dlugosza w Czestochowie (ORG-AJD1-RIPE) · PL | ASSIGNED PA | — | abuse@ |
Network & registry
Registry
Holder
- Organization
- Politechnika Czestochowska
- Handle
- ORG-PC2-RIPE
- Range
- 212.
87. 224. 0/ 19 - Registration type
- ALLOCATED PA
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 this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 212.
87. 234. 0 - 212. 87. 236. 255 - Netname
- UJD-NET
- Registrant
- Uniwersytet Jana Dlugosza w Czestochowie
- Registrant country
- PL
- Organization
- Uniwersytet Jana Dlugosza w Czestochowie (ORG-AJD1-RIPE)
- Org country
- PL
- Type
- ASSIGNED PA
- Created
- Not stated by the registry
- Updated
- Oct 27, 2023
- Maintainer
- PL-CZESTMAN-MNT
- RIR
- RIPE NCC
- Country
- PL
- Delegated
- May 19, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ujd. edu. pl - Name
- AJD-PL Operations
- Handle
- AO4511-RIPE