Data as of Nov 3, 2026

91.231.71.0/24

4 residential-proxy exits · 30 days

Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.

Announcement

91.231.70.0/23

RPKI valid

Announced by

AS198050

Type

Residential

Risk

0 / 100 · Low

Residential-proxy exits

Proxy exits

1.6% of its addresses · 30 days

Providers

selling exits here

Oct 4, 2026 – Nov 2, 2026

Exits seen per day

102 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

Announcement Routing history RPKI & IRR Whois & abuse

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: 8
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

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

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

91.231.71.0/24

Residential-proxy exits

Exits seen per day

Proxy providers listing exits

Network & registry

Covering announcement 91.231.70.0/23

AS198050

Who has announced 91.231.70.0/23

Routing history

Route origin authorizations

Route objects on 91.231.70.0/23

Registration for this announcement

Abuse contact