Data as of Nov 14, 2026
91.222.145.0/24
1 residential-proxy exit · 30 days'GREFNET' Miroslaw Grefkowicz
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
3 observations
Proxy providers listing exits
- Infatica
- Shifter
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 91.222.144.0/22 since Mar 2020 | AS197479 | Residential | 3 | "GREFNET" Miroslaw Grefkowicz |
Network & registry
Origin network
AS197479
PL
- Name
- 'GREFNET' Miroslaw Grefkowicz
- Type
- Internet provider
- Registered
- Dec 20, 2010
- Domain
- grefnet.pl
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2012
- Current origin since
- Oct 2020 · 6.1 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 91.222.145.0/24 | AS197479 | /24 | RIPE | RPKI valid |
| 91.222.144.0/22 | AS197479 | /22 | RIPE | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS197479 | RIPE | WITRYNA-MNT | Jul 11, 2021 |
Whois
Registration for this announcement
- Range
- 91.
222. 144. 0/ 22 - Netname
- GREFNET
- Registrant
- "GREFNET" Miroslaw Grefkowicz
- Registrant country
- PL
- Organization
- "GREFNET" Miroslaw Grefkowicz (ORG-GA244-RIPE)
- Org country
- PL
- Type
- ASSIGNED PI
- Created
- Dec 20, 2010
- Updated
- Jul 11, 2021
- Maintainer
- RIPE-NCC-END-MNT
- RIR
- RIPE NCC
- Country
- PL
- Delegated
- Dec 20, 2010
- Status
- assigned
Report abuse
Abuse contact
- michal@
grefnet. pl - Name
- "GREFNET" Miroslaw Grefkowicz contact
- Handle
- GREF4-RIPE