AS42490#503 ZETO-RZESZOW ZETO-RZESZOW Sp. z o.o.2,048
AS42619#504 PROMONTEL-AS Promontel Sp. z o.o.2,048
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