Data as of Nov 4, 2026
185.52.172.72/29
No anonymizer space · no proxy exits in 30 daysISP Alliance a.s.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 185.52.172.0/23 since Aug 2016 | AS202131 | Residential | 14 1 always on | ISP Alliance 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 |
|---|---|---|---|---|---|---|
| 185.52.172.0/23 | 512 | CZ-GRAPESC-20140402 | ISP Alliance a.s. (ORG-GSA22-RIPE) · CZ | ALLOCATED PA | Feb 17, 2017 | abuse@ |
| └ 185.52.172.72/29 | 8 | TwigoNet | TwigoNet Europe, SE (ORG-TES23-RIPE) | ASSIGNED PA | Aug 22, 2020 | info@ |
Network & registry
Announced by
Covering announcement 185.52.172.0/24
- Prefix
- 185.52.172.0/24
- Announced by
- AS47232 ISP Alliance a.s.
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- CZ-GRAPESC-20140402
- Registrant
- ISP Alliance a.s.
- RIR
- RIPE NCC
Origin network
AS47232
CZ
- Name
- ISP Alliance a.s.
- Type
- Internet provider
- Registered
- May 21, 2008
- Domain
- ispalliance.cz
- Website
- www.ispalliance.cz
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
185.52.172.0/24
Routing history
- Pattern
- Stable
- First seen
- Jan 2017
- Current origin since
- Jan 2017 · 9.8 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 185.52.172.0/24 | AS47232 | /32 | RIPE | RPKI valid |
| 185.52.172.0/23 | AS202131 | /32 | RIPE | Another network |
| 185.52.172.0/23 | AS204666 | /24 | RIPE | Another network |
IRR
Route objects on 185.52.172.0/24
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS47232 | RIPE | ISP Alliance a.s. | MNT-GRAPESC | Jan 26, 2016 |
Whois
Registration for this announcement
- Range
- 185.
52. 172. 0/ 23 - Netname
- CZ-GRAPESC-20140402
- Registrant
- ISP Alliance a.s.
- Registrant country
- CZ
- Organization
- ISP Alliance a.s. (ORG-GSA22-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Feb 17, 2017
- Updated
- Feb 17, 2017
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Apr 2, 2014
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ispalliance. cz - Name
- ISPalliance Abuse
- Handle
- IA3261-RIPE