AS8387#12 T-SYSTEMS-AT Deutsche Telekom Global Business Solutions GmbH91,648
AS5403#13 AS5403 APA-IT Informations Technologie G.m.b.H87,552
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