AS13091#11 PTT-SRBIJA-NET Posta Srbije Drustvo S Ogranicenom Odgovornoscu, Beograd47,872
AS44143#12 A1SERBIA-AS A1 Srbija d.o.o. Beograd22,528
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