Data as of Nov 4, 2026
37.221.89.0/24
No anonymizer space · no proxy exits in 30 daysCloud4com s.r.o.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 37.221.88.0/22 since Jul 2019 | AS201730 | Hosting | Cloud4com 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 |
|---|---|---|---|---|---|---|
| 37.221.88.0/22 | 1,024 | CZ-CLOUD4COM1-20181112 | Cloud4com s.r.o. (ORG-CS814-RIPE) · CZ | ALLOCATED PA | Nov 17, 2020 | [email protected] |
| └ 37.221.89.0/24 | 256 | DataSpring_DDoS_protection_test02 | Aricoma Systems a.s. (ORG-CISS4-RIPE) · CZ | ASSIGNED PA | Jul 17, 2019 | [email protected] |
Network & registry
Registry
Holder
- Organization
- Cloud4com s.r.o.
- Handle
- ORG-CS814-RIPE
- Range
- 37.221.88.0/22
- Registration type
- ALLOCATED PA
- Record created
- Nov 17, 2020
Origin network
AS201730
CZ
- Name
- Cloud4com s.r.o.
- Type
- Hosting
- Registered
- Jul 31, 2014
- Domain
- dataspring.cz
- Website
- www.dataspring.cz
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2019
- Current origin since
- Aug 2019 · 7.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 37.221.89.0/24 | AS201730 | /24 | RIPE | RPKI valid |
| 37.221.88.0/22 | AS201730 | /24 | RIPE | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS201730 | RIPE | MNT-ICT | Aug 16, 2019 |
Whois
Registration for this announcement
- Range
- 37.221.89.0/24
- Netname
- DataSpring_DDoS_protection_test02
- Registrant
- Aricoma Systems a.s.
- Registrant country
- CZ
- Organization
- Aricoma Systems a.s. (ORG-CISS4-RIPE)
- Org country
- CZ
- Type
- ASSIGNED PA
- Created
- Jul 17, 2019
- Updated
- Jul 17, 2019
- Maintainer
- MNT-ICT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Nov 12, 2018
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- C4C network operation
- Handle
- ICT-RIPE