Data as of Nov 12, 2026
78.128.252.0/22
No anonymizer space · no proxy exits in 30 daysCESNET z.s.p.o.
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 |
|---|---|---|---|---|---|---|
| 78.128.128.0/17 | 32,768 | CZ-TEN-34-20070410 | CESNET z.s.p.o. (ORG-CA9-RIPE) · CZ | ALLOCATED PA | Apr 10, 2007 | abuse@ |
| └ 78.128.252.0/22 | 1,024 | CESNET-LAB2 | CESNET z.s.p.o. (ORG-CA9-RIPE) · CZ | ASSIGNED PA | Sep 25, 2012 | abuse@ |
Network & registry
Announced by
Covering announcement 78.128.128.0/17
- Prefix
- 78.128.128.0/17
- Announced by
- AS2852 CESNET z.s.p.o.
- Type
- Business
- Proxy exits
- 86
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- CZ-TEN-34-20070410
- Registrant
- CESNET z.s.p.o.
- RIR
- RIPE NCC
Origin network
AS2852
CZ
- Name
- CESNET z.s.p.o.
- Type
- Education
- Registered
- Dec 20, 1993
- Domain
- cesnet.cz
- Website
- www.cesnet.cz
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 78.128.128.0/17
78.128.128.0/17
Routing history
- Pattern
- Stable
- First seen
- Jun 2007
- Current origin since
- Jun 2007 · 19 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 78.128.128.0/17 | AS2852 | /24 | RIPE | RPKI valid |
Whois
Registration for this announcement
- Range
- 78.
128. 128. 0/ 17 - Netname
- CZ-TEN-34-20070410
- Registrant
- CESNET z.s.p.o.
- Registrant country
- CZ
- Organization
- CESNET z.s.p.o. (ORG-CA9-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Apr 10, 2007
- Updated
- May 26, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Apr 10, 2007
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cesnet. cz - Name
- CESNET z.s.p.o. Network Administrators
- Handle
- CZNA1-RIPE