AS8501 PIONIER-AS Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center

PIONIER-AS Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center · registered in Poland

IPv4 addresses1,7925 prefixes · <0.001% of announced IPv4

Rank in Poland#571largest network in PL by IPv4 space, of 2,091 · <0.01% of PL

Rank worldwide#24,809of 79,396 networks with IPv4

IPv68,192 x /481 prefixes

CountryPoland2,145 ASNs registered there

Open AS8501 in ASN lookup Look up an IP in this network (212.191.224.1) All networks in Poland

IPv4 prefixes

All 5 prefixes, in address order.

212.191.224.0/23
212.191.227.0/24
212.191.229.0/24
212.191.240.0/23
212.191.244.0/24

IPv6 prefixes

All 1 prefix.

2001:b10:c000::/35

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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