Data as of Nov 11, 2026
81.0.231.0/29
No anonymizer space · no proxy exits in 30 daysCASABLANCA INT a.s.
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 |
|---|---|---|---|---|---|---|
| 81. | 3,584 | CZ-CASABLANCA-20011214 | CASABLANCA INT a.s. (ORG-CI1-RIPE) · CZ | ALLOCATED PA | Jul 28, 2022 | abuse@ |
| └ 81.0.231.0/29 | 8 | AwinIT-CZ | awin IT, s. r. o. | ASSIGNED PA | Jun 1, 2018 | abuse@ via CZ-CASABLANCA-20011214 |
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
Announced by
Covering announcement 81.0.231.0/24
- Prefix
- 81.0.231.0/24
- Announced by
- AS15685 CASABLANCA INT a.s.
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- CZ-CASABLANCA-20011214
- Registrant
- CASABLANCA INT a.s.
- RIR
- RIPE NCC
Origin network
AS15685
CZ
- Name
- CASABLANCA INT a.s.
- Type
- Hosting
- Registered
- Sep 11, 2000
- Domain
- casablanca.cz
- Website
- www.casablanca.cz
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 81.0.231.0/24
81.0.231.0/24
Routing history
- Pattern
- Stable
- First seen
- May 2025
- Current origin since
- May 2025 · 1.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.0.231.0/24 | AS15685 | /24 | RIPE | RPKI valid |
| 81.0.230.0/23 | AS15685 | /23 | RIPE | Too specific |
IRR
Route objects on 81.0.231.0/24
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS15685 | RIPE | Casablanca INT prefix fraction | CASABLANCA-CORE-MNT | Jun 30, 2017 |
Whois
Registration for this announcement
- Range
- 81.
0. 230. 0 - 81. 0. 243. 255 - Netname
- CZ-CASABLANCA-20011214
- Registrant
- CASABLANCA INT a.s.
- Registrant country
- CZ
- Organization
- CASABLANCA INT a.s. (ORG-CI1-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Jul 28, 2022
- Updated
- Jul 28, 2022
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Dec 14, 2001
- Status
- assigned
Report abuse
Abuse contact
- abuse@
casablanca. cz - Name
- Casablanca INT RIPE manager
- Handle
- CASA3-RIPE