Data as of Nov 8, 2026
185.103.144.0/24
No anonymizer space · no proxy exits in 30 daysO2 Business Services, 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 |
|---|---|---|---|---|---|---|
| 185.103.144.0/22 | 1,024 | SK-BS-20150608 | O2 Business Services, a.s (ORG-OBSS2-RIPE) · SK | ALLOCATED PA | Jun 8, 2015 | csc@ |
| └ 185.103.144.0/24 | 256 | SK-O2BS-PUBLIC-SERVERS | O2BS Public server segments | ASSIGNED PA | Jun 21, 2016 | csc@ via SK-BS-20150608 |
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 185.103.144.0/22
- Prefix
- 185.103.144.0/22
- Announced by
- AS28952 O2 Business Services, a.s
- Type
- Internet provider
- RPKI
- RPKI valid
- Netname
- SK-BS-20150608
- Registrant
- O2 Business Services, a.s
- RIR
- RIPE NCC
Origin network
AS28952
SK
- Name
- O2 Business Services, a.s
- Type
- Internet provider
- Registered
- Jun 8, 2015
- Domain
- o2bs.sk
- Website
- www.o2bs.sk
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 185.103.144.0/22
185.103.144.0/22
Routing history
- Pattern
- Stable
- First seen
- Sep 2015
- Current origin since
- Sep 2015 · 11 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 185.103.144.0/22 | AS28952 | /22 | RIPE | RPKI valid |
IRR
Route objects on 185.103.144.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS28952 | RIPE | O2BS | SK-BS-MNT | Sep 7, 2015 |
Whois
Registration for this announcement
- Range
- 185.
103. 144. 0/ 22 - Netname
- SK-BS-20150608
- Registrant
- O2 Business Services, a.s
- Registrant country
- SK
- Organization
- O2 Business Services, a.s (ORG-OBSS2-RIPE)
- Org country
- SK
- Type
- ALLOCATED PA
- Created
- Jun 8, 2015
- Updated
- Jan 11, 2017
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- SK
- Delegated
- Jun 8, 2015
- Status
- assigned
Report abuse
Abuse contact
- csc@
o2bs. sk - Name
- O2 Business Services admin role
- Handle
- SKBS1-RIPE