Data as of Nov 14, 2026
37.221.90.0/23
No anonymizer space · no proxy exits in 30 daysCloud4com s.r.o.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 37.221.90.0/24 since Sep 2019 | AS201730 | Hosting | Cloud4com s.r.o. | |
| 37.221.91.0/24 since Jul 2019 | AS201730 | Hosting | Cloud4com s.r.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 |
|---|---|---|---|---|---|---|
| 37.221.88.0/22 | 1,024 | CZ-CLOUD4COM1-20181112 | Cloud4com s.r.o. (ORG-CS814-RIPE) · CZ | ALLOCATED PA | Nov 17, 2020 | support@ |
| └ 37.221.90.0/24 | 256 | DataSpring_ | Aricoma Systems a.s. (ORG-CISS4-RIPE) · CZ | ASSIGNED PA | Jul 17, 2019 | noc. |
| └ 37.221.91.0/24 | 256 | DataSpring_ | Aricoma Systems a.s. (ORG-CISS4-RIPE) · CZ | ASSIGNED PA | Jul 17, 2019 | noc. |
Network & registry
Announced by
Covering announcement 37.221.88.0/22
- Prefix
- 37.221.88.0/22
- Announced by
- AS201730 Cloud4com s.r.o.
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- CZ-CLOUD4COM1-20181112
- Registrant
- Cloud4com s.r.o.
- RIR
- RIPE NCC
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
Who has announced 37.221.88.0/22
37.221.88.0/22
Routing history
- Pattern
- Stable
- First seen
- Jul 2019
- Current origin since
- Jul 2019 · 7.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 37.221.88.0/22 | AS201730 | /24 | RIPE | RPKI valid |
IRR
Route objects on 37.221.88.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS201730 | RIPE | DataSpring DDoS protection test | MNT-ICT | Jul 17, 2019 |
Whois
Registration for this announcement
- Range
- 37.
221. 88. 0/ 22 - Netname
- CZ-CLOUD4COM1-20181112
- Registrant
- Cloud4com s.r.o.
- Registrant country
- CZ
- Organization
- Cloud4com s.r.o. (ORG-CS814-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Nov 17, 2020
- Updated
- Mar 13, 2024
- Maintainer
- MNT-ICT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Nov 12, 2018
- Status
- assigned
Report abuse
Abuse contact
- support@
cloud4com. com - Name
- Abuse-C Role
- Handle
- AR74237-RIPE