AS42576 INTRSC-AS Maciej Jan Broniarz trading as CERT NGO

INTRSC-AS Maciej Jan Broniarz trading as CERT NGO · registered in Poland

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in Poland#1,058largest network in PL by IPv4 space, of 2,091 · <0.01% of PL

Rank worldwide#48,341of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryPoland2,145 ASNs registered there

Open AS42576 in ASN lookup Look up an IP in this network (91.192.224.1) All networks in Poland

IPv4 prefixes

All 2 prefixes, in address order.

91.192.224.0/24
193.3.166.0/24

IPv6 prefixes

All 1 prefix.

2001:678:664::/48

Similar-sized networks in Poland

ASNNameIPv4 addresses

AS31080#1055 O2-AS Wirtualna Polska Media S.A.512

AS41618#1056 KTR-AS Komputronik S.A.512

AS42564#1057 ASWASKO-WA WASKO S.A.512

AS51305#1059 TPV-POLSKA-AS TPV Displays Polska Sp. z o.o.512

AS58307#1060 RIX UNITEL-MEDIA Sp. z o.o.512

AS60594#1061 T-BAND-ASN T-Band Sp. z o.o.512

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources