AS203313 OLDNET OldNET Krzysztof Cukierski

OLDNET OldNET Krzysztof Cukierski · registered in Poland

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Poland#1,258largest network in PL by IPv4 space, of 2,091 · <0.01% of PL

Rank worldwide#56,501of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryPoland2,145 ASNs registered there

Open AS203313 in ASN lookup Look up an IP in this network (91.228.42.1) All networks in Poland

IPv4 prefixes

All 1 prefix, in address order.

91.228.42.0/23

Similar-sized networks in Poland

ASNNameIPv4 addresses

AS202854#1255 NEANTIC-SK NEANTIC SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA SPOLKA KOMANDYTOWA512

AS203230#1256 MULTITK-AS MULTITK Tomasz Pohl, Krzysztof Matyjaszczyk S.C.512

AS203261#1257 ASCOR-AS ASCOR spolka cywilna512

AS203362#1259 PL-OPEN-WAY-AS OPEN WAY Lukasz Jankowiak512

AS203375#1260 mgnet-pl Michal Stanislaw Golberg tranding as - NET512

AS203505#1261 WIECZOR-NET-AS WIECZOR-NET Sieci Komputerowe, Internet Henryk Wieczorek512

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