Data as of Nov 8, 2026
31.134.221.0/24
No anonymizer space · no proxy exits in 30 daysJaroslav Novotny
Network & registry
Origin network
AS41030
CZ
- Name
- Jaroslav Novotny
- Type
- Internet provider
- Registered
- Mar 31, 2011
- Domain
- netopen.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
- Mar 2014
- Current origin since
- Oct 2016 · 10 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 31.
134. 216. 0/ 21 - Netname
- NETOPEN-NET
- Registrant
- Jaroslav Novotny
- Registrant country
- CZ
- Organization
- Jaroslav Novotny (ORG-NETO1-RIPE)
- Org country
- CZ
- Type
- ASSIGNED PI
- Created
- May 19, 2011
- Updated
- Apr 14, 2016
- Maintainer
- RIPE-NCC-END-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- May 19, 2011
- Status
- assigned
Report abuse
Abuse contact
- admin@
netopen. cz - Name
- Abuse-C Role
- Handle
- AR19390-RIPE