Maciej Jan Broniarz trading as CERT NGO
Data as of 2026-07-26
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 · 512 IPv4 addresses |
| IPv6 | 1 prefix (largest 2001:678:664::/48) |
| Cluster ID | 213411313 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 9 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 |
|---|---|---|---|---|
| 91.192.224.0/24 | Maciej Jan Broniarz trading as CERT NGO | BGP | ANNOUNCED | ● high |
| 193.3.166.0/24 | Maciej Jan Broniarz trading as CERT NGO | BGP | ANNOUNCED | ● high |
| 2001:678:664::/48 | Maciej Jan Broniarz trading as CERT NGO | RIPE | ASSIGNED PI | ● high |
IPv6 ranges (1)
| CIDR |
|---|
| 2001:678:664::/48 |
NIC Handles
AS42576
ATMAN-MNT
DUMY-RIPE
DUMY-RIPE
LEON-MNT
ORG-IA684-RIPE
RIPE-NCC-END-MNT
UW-PL
UW-PL