Core4Net, s.r.o.

Data as of 2026-10-04
BGP inherited
This organisation
Netblocks13 · 11,264 IPv4 addresses
IPv6 2 prefixes (largest 2a05:d540::/29)
Record ID245464794
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 10 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (13)

⬇ export CSV
CIDR Org name Registry Status Confidence
79.142.144.0/20 Core4Net, s.r.o. BGP ANNOUNCED ● high
93.91.240.0/22 Core4Net, s.r.o. BGP ANNOUNCED ● high
93.91.240.0/20 Core4Net, s.r.o. BGP ANNOUNCED ● high
93.91.244.0/22 Core4Net, s.r.o. BGP ANNOUNCED ● high
93.91.248.0/22 Core4Net, s.r.o. BGP ANNOUNCED ● high
93.91.252.0/22 Core4Net, s.r.o. BGP ANNOUNCED ● high
185.51.28.0/22 Core4Net, s.r.o. BGP ANNOUNCED ● high
185.180.1.0/24 Core4Net, s.r.o. BGP ANNOUNCED ● high
185.180.2.0/23 Core4Net, s.r.o. BGP ANNOUNCED ● high
2a02:24c0::/32 Core4Net, s.r.o. BGP ANNOUNCED ● high
2a05:d540::/29 Core4Net, s.r.o. BGP ANNOUNCED ● high
185.170.240.0/22 Core4Net, s.r.o. RIPE ALLOCATED PA ● low
185.180.0.0/22 Core4Net, s.r.o. RIPE ALLOCATED PA ● low

IPv6 ranges (2)

CIDR
2a05:d540::/29
2a02:24c0::/32

Footprint over time

15 weekly snapshots · JSON
18 0 netblocks since 2026-07-05
2026-07-05 peak 18 2026-10-04

Other domains hosted in this network

what's this?
fakaheda.eu

Network trust

what's this?
RPKI hygiene: B how networks compare →
88.9% of checked blocks have valid RPKI ROA coverage (16 of 18)
No discrepancies found among checked blocks.

NIC Handles

AS197307 AS214703 AS47269 DUMY-RIPE DUMY-RIPE ORG-CS455-RIPE RIPE-NCC-HM-MNT cz-bnet-business-1-mnt cz-core4net-1-mnt cz-core4net-1-mnt