Data as of Nov 13, 2026
147.161.28.0/23
No anonymizer space · no proxy exits in 30 daysWIA spol. 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 |
|---|---|---|---|---|---|---|
| 147.161.28.0/22 | 1,024 | CZ-WIA-19910501 | WIA spol. s.r.o. (ORG-WSS1-RIPE) · CZ | ALLOCATED PA | Sep 6, 2022 | abuse@ |
| └ 147.161.28.0/23 | 512 | WIA-CLOUD | unknown | ASSIGNED PA | Sep 8, 2022 | abuse@ via CZ-WIA-19910501 |
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 147.161.28.0/22
- Prefix
- 147.161.28.0/22
- Announced by
- AS21430 WIA spol. s.r.o.
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- CZ-WIA-19910501
- Registrant
- WIA spol. s.r.o.
- RIR
- RIPE NCC
Origin network
AS21430
CZ
- Name
- WIA spol. s.r.o.
- Type
- Internet provider
- Registered
- Dec 7, 2001
- Domain
- wia.cz
- Website
- www.wia.cz/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 147.161.28.0/22
147.161.28.0/22
Routing history
- Pattern
- Rotating
- First seen
- Jul 2020
- Current origin since
- Dec 2025 · 11 mo
- Origin networks
- 2
- Last change of origin
- Dec 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 147.161.28.0/22 | AS21430 | /22 | RIPE | RPKI valid |
IRR
Route objects on 147.161.28.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS21430 | RIPE | WIA spol. s r.o., Prague, Czech Republic | WIA-AS-MNT | Dec 5, 2025 |
Whois
Registration for this announcement
- Range
- 147.
161. 28. 0/ 22 - Netname
- CZ-WIA-19910501
- Registrant
- WIA spol. s.r.o.
- Registrant country
- CZ
- Organization
- WIA spol. s.r.o. (ORG-WSS1-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Sep 6, 2022
- Updated
- Sep 6, 2022
- Maintainer
- WIA-AS-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- May 1, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
wia. cz - Name
- WIA Abuse Contact
- Handle
- WAC9-RIPE