AS34891 UM-Warszawa-AS Urzad Miasta Stolecznego Warszawa

UM-Warszawa-AS Urzad Miasta Stolecznego Warszawa · registered in Poland

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in Poland#958largest network in PL by IPv4 space, of 2,091 · <0.01% of PL

Rank worldwide#43,414of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryPoland2,145 ASNs registered there

Open AS34891 in ASN lookup Look up an IP in this network (91.237.138.1) All networks in Poland

IPv4 prefixes

All 2 prefixes, in address order.

91.237.138.0/23
194.30.179.0/24

IPv6 prefixes

All 1 prefix.

2001:67c:10b4::/48

Similar-sized networks in Poland

ASNNameIPv4 addresses

AS214762#955 MATHOST Sebastian Stefanek trading as MatHost.eu768

AS196844#956 PIONIER-AS-ams-ix Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center768

AS198408#957 EMOUSE-NET E-Mouse Karol Urbanowicz768

AS43862#959 POLPX Towarowa Gielda Energii S.A768

AS49420#960 APLITT Aplitt Sp. z o.o.768

AS51931#961 ARPNET-AS ARPNET WOJCIECH CHODACKI768

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