CESNET-PRAHA
Data as of 2026-10-04
BGP inherited
This organisation
| Netblocks | 10 · 1,432 IPv4 addresses |
| Also registered under this name | 12 netblocks across 2 separate records |
| Record ID | 246862836 |
| Registry | RIPE |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 4 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 194.108.145.0/24 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.108.151.0/29 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.108.154.0/24 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.108.177.0/24 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.108.189.0/24 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.108.203.0/24 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.108.223.128/27 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.212.229.96/27 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.212.232.240/28 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
| 194.212.236.0/26 | CESNET-PRAHA | RIPE | ASSIGNED PA | ● low |
Footprint over time
15 weekly snapshots · JSON
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-10-04
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(10 of 10)
Possible discrepancies (5)
These blocks are registered to CESNET-PRAHA 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.
| 194.108.203.0/24 /24 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
| 194.108.154.0/24 /24 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
| 194.108.189.0/24 /24 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
| 194.108.145.0/24 /24 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
| 194.108.177.0/24 /24 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
NIC Handles
CES-IP-MNT
DUMY-RIPE
DUMY-RIPE
GTSCZ-MNT