Milan Zelenka
Data as of 2026-08-16
BGP inherited
Limited data: only 3 ranges found registered
under this exact name. This may not reflect the organisation's full internet footprint — many companies'
web and cloud infrastructure is hosted under a third-party provider's own registration rather than their own.
Cluster stats
| Netblocks | 3 · 2,048 IPv4 addresses |
| IPv6 | 1 prefix (largest 2a03:3760::/32) |
| Cluster ID | 223184078 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 7 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 (3)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 5.252.40.0/22 | Milan Zelenka | BGP | ANNOUNCED | ● high |
| 185.71.40.0/22 | Milan Zelenka | BGP | ANNOUNCED | ● high |
| 2a03:3760::/32 | Milan Zelenka | RIPE | ALLOCATED-BY-RIR | ● low |
IPv6 ranges (1)
| CIDR |
|---|
| 2a03:3760::/32 |
Network trust
what's this?
RPKI hygiene: C
how networks compare →
75.0%
of checked blocks have valid RPKI ROA coverage
(3 of 4)
No discrepancies found among checked blocks.
NIC Handles
AS201548
DUMY-RIPE
DUMY-RIPE
MNT-MZELENKA
MNT-MZELENKA
ORG-MZ6-RIPE
RIPE-NCC-HM-MNT