Data as of Nov 10, 2026
91.231.71.0/24
4 residential-proxy exits · 30 daysMarek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.
Residential-proxy exits
Proxy exits
4
1.6% of its addresses · 30 days
Providers
21
selling exits here
Oct 11, 2026 – Nov 9, 2026
Exits seen per day
87 observations
Proxy providers listing exits
- 2Extract
- 711Proxy
- AnyIP
- B2Proxy
- Byteful
- FastProxy
- FloppyData
- GSocks
- Geonix
- GonzoProxy
- IPPeak
- Infatica
- LudaxProxy
- MangoProxy
- NodeProxy
- NovaProxy
- Proxy-Seller
- Proxyma
- RainProxy
- VantageProxies
- VitalExclusive
Network & registry
Announced by
Covering announcement 91.231.70.0/23
- Prefix
- 91.231.70.0/23
- Announced by
- AS198050 Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.
- Type
- Residential
- Proxy exits
- 9
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- PL-ALFA-SYSTEM-20110914
- Registrant
- Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.
- RIR
- RIPE NCC
Origin network
AS198050
PL
- Name
- Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.
- Type
- Internet provider
- Registered
- Sep 14, 2011
- Domain
- alfa-system.pl
- Website
- alfa-system.pl
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 91.231.70.0/23
91.231.70.0/23
Routing history
- Pattern
- Stable
- First seen
- Mar 2012
- Current origin since
- Mar 2012 · 15 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 91.231.70.0/23 | AS198050 | /23 | RIPE | RPKI valid |
IRR
Route objects on 91.231.70.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS198050 | RIPE | ALFA-SYSTEM | ITCARE-MNT | Nov 29, 2011 |
Whois
Registration for this announcement
- Range
- 91.
231. 70. 0/ 23 - Netname
- PL-ALFA-SYSTEM-20110914
- Registrant
- Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.
- Registrant country
- PL
- Organization
- Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j. (ORG-MPTA12-RIPE)
- Org country
- PL
- Type
- ALLOCATED PA
- Created
- Nov 17, 2025
- Updated
- Nov 17, 2025
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- PL
- Delegated
- Sep 14, 2011
- Status
- assigned
Report abuse
Abuse contact
- abuse@
alfa-system. pl - Name
- Abuse-C Role
- Handle
- AR76225-RIPE