AS21182 OPOLMAN-AS-EDU Opole University

OPOLMAN-AS-EDU Opole University · registered in Poland

IPv4 addresses3,8405 prefixes · <0.001% of announced IPv4

Rank in Poland#328largest network in PL by IPv4 space, of 2,091 · 0.02% of PL

Rank worldwide#16,533of 79,396 networks with IPv4

IPv64 x /32 (262,144 x /48)1 prefixes

CountryPoland2,145 ASNs registered there

Open AS21182 in ASN lookup Look up an IP in this network (185.178.156.1) All networks in Poland

IPv4 prefixes

All 5 prefixes, in address order.

185.178.156.0/23
185.178.158.0/24
217.173.192.0/21
217.173.200.0/23
217.173.206.0/23

IPv6 prefixes

All 1 prefix.

2a04:9440::/30

Similar-sized networks in Poland

ASNNameIPv4 addresses

AS49601#325 UNITEL-MEDIA UNITEL-MEDIA Sp. z o.o.3,840

AS41006#326 IDC-ASN RWD PROSPECT sp.z o.o.3,840

AS196890#327 COMPLEX-AS Complex Computers sp. z o.o.3,840

AS49888#329 ULTRANET-AS Ultranet Sp. z o.o.3,840

AS2590#330 SUNTAR-AS Suntar Sp. z o.o.3,840

AS8726#331 KKI-BCI-AS Grupa KKI-BCI Sp. Z o.o.3,840

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