Data as of Nov 7, 2026
78.108.152.0/21
No anonymizer space · no proxy exits in 30 daysO2 Czech Republic, a.s.
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 |
|---|---|---|---|---|---|---|
| 78.108.144.0/20 | 4,096 | CZ-CZNET-20070622 | O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZ | ALLOCATED PA | Nov 30, 2021 | abuse@ |
| └ 78.108.152.0/22 | 1,024 | PORUBANET-ASS2 | Assignment for PorubaNET's FO customers | ASSIGNED PA | Apr 3, 2019 | abuse@ via CZ-CZNET-20070622 |
| └ 78.108.156.0/22 | 1,024 | PORUBANET-ASS1 | Assignment for PorubaNET's infrastructure | ASSIGNED PA | Apr 3, 2019 | abuse@ via CZ-CZNET-20070622 |
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
Origin network
AS16246
CZ
- Name
- O2 Czech Republic, a.s.
- Type
- Internet provider
- Registered
- Feb 7, 2001
- Domain
- o2.cz
- Website
- www.nej.cz
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jul 2010
- Current origin since
- Jun 2020 · 6.4 yr
- Origin networks
- 2
- Last change of origin
- Jun 2020
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 78.
108. 144. 0/ 20 - Netname
- CZ-CZNET-20070622
- Registrant
- O2 Czech Republic, a.s.
- Registrant country
- CZ
- Organization
- O2 Czech Republic, a.s. (ORG-STAN1-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Nov 30, 2021
- Updated
- Jun 20, 2024
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Jun 22, 2007
- Status
- assigned
Report abuse
Abuse contact
- abuse@
o2. cz - Name
- Abuse-C Role
- Handle
- AR14410-RIPE