AS203937#355 Cyfrotel MAREK BZDZIUCH trading as CYFROTEL Sp. J.3,328
AS30778#356 KIELMAN-COM-AS Kielce University of Technology3,328
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