Data as of Nov 5, 2026
217.28.88.0/21
No anonymizer space · no proxy exits in 30 daysGreendata s.r.o. · space held by FIBER Network s.r.o.
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 |
|---|---|---|---|---|---|---|
| 217.28.80.0/20 | 4,096 | CZ-FIBER-20101105 | FIBER Network s.r.o. (ORG-FNS4-RIPE) · CZ | ALLOCATED PA | Nov 5, 2010 | abuse@ |
| └ 217.28.88.0/21 | 2,048 | FIBER-NETWORKS-APA | FIBER Network s.r.o. (ORG-FNS4-RIPE) · CZ | ASSIGNED PA | May 19, 2016 | abuse@ |
Network & registry
Registry
Holder
- Organization
- FIBER Network s.r.o.
- Handle
- ORG-FNS4-RIPE
- Range
- 217.
28. 80. 0/ 20 - Registration type
- ALLOCATED PA
- Record created
- Nov 5, 2010
Origin network
AS57707
CZ
- Name
- Greendata s.r.o.
- Type
- Hosting
- Registered
- Jan 20, 2012
- Domain
- greenhousing.cz
- Website
- www.greenhousing.cz
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Dec 2010
- Current origin since
- Feb 2023 · 3.8 yr
- Origin networks
- 3
- Last change of origin
- Feb 2023
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 217.
28. 88. 0/ 21 - Netname
- FIBER-NETWORKS-APA
- Registrant
- FIBER Network s.r.o.
- Registrant country
- CZ
- Organization
- FIBER Network s.r.o. (ORG-FNS4-RIPE)
- Org country
- CZ
- Type
- ASSIGNED PA
- Created
- May 19, 2016
- Updated
- May 19, 2016
- Maintainer
- MNT-FIBERCZ
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Nov 5, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse@
fiber. cz - Name
- Security dep. FIBER NETWORK s.r.o.
- Handle
- AFBR1