CEZNET
Cluster stats
| Netblocks | 30 |
| All fragments | 159 blocks across 44 clusters |
| Cluster ID | 192236748 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 5 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
30
0 netblocks since 2026-07-05
2026-07-05
peak 30
2026-07-06
IP Ranges (30)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 80.95.244.0/23 | CEZNET-NET | RIPE | ASSIGNED PA | ● low |
| 81.25.16.0 – 81.25.20.255 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 81.25.27.0/24 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 81.25.28.0 – 81.25.30.255 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 81.25.31.0/24 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 109.234.40.0 – 109.234.46.255 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 109.234.47.0/24 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 149.255.64.0 – 149.255.83.31 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.67.188.0/24 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.67.189.0/24 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.67.190.0/24 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.67.191.0/24 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.201.12.0/23 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.201.14.0/23 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.255.116.0/23 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 185.255.118.0/23 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 195.250.139.232/30 | CEZNET | RIPE | ASSIGNED PA | ● low |
| 2a00:1800:1::/48 | CEZNET | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:1800:100::/45 | CEZNET | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a00:1800:ff0::/48 | CEZNET | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a00:1800:ff1::/48 | CEZNET | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:1800:ff2::/48 | CEZNET | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:1807::/32 | CEZNET | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a00:1807:5::/48 | CEZNET | RIPE | ASSIGNED | ● low |
| 2a00:1807:6::/48 | CEZNET | RIPE | ASSIGNED | ● low |
| 2a00:1807:7::/48 | CEZNET | RIPE | ASSIGNED | ● low |
| 2a03:1180::/48 | CEZNET | RIPE | ASSIGNED | ● low |
| 2a05:1200::/32 | CEZNET | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a0a:bdc0::/30 | CEZNET | RIPE | ASSIGNED | ● low |
| 2a0a:bdc4::/30 | CEZNET | RIPE | ASSIGNED | ● low |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
93.3%
of checked blocks have valid RPKI ROA coverage
(28 of 30)
Possible discrepancies (1)
These blocks are registered to CEZNET but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 80.95.244.0/23 /23 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
NIC Handles
AS12767-MNT
CEZNET-MNT
DIALTELECOM-MNT
DUMY-RIPE
DUMY-RIPE