University of Ostrava
Data as of 2026-09-06
BGP inherited
This organisation
| Netblocks | 8 · 7,568 IPv4 addresses |
| IPv6 | 3 prefixes (largest 2001:718:1005::/48) |
| Also registered under this name | 3,715 netblocks across 491 separate records |
| Record ID | 236373001 |
| 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 (8)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 78.128.128.0 – 78.128.146.255 | University of Ostrava | RIPE | ASSIGNED PA | ● high |
| 195.113.102.0 – 195.113.112.127 | University of Ostrava | RIPE | ASSIGNED PA | ● high |
| 195.113.209.36/30 | University of Ostrava | RIPE | ASSIGNED PA | ● high |
| 195.113.209.48/30 | University of Ostrava | RIPE | ASSIGNED PA | ● high |
| 195.113.209.56/29 | University of Ostrava | RIPE | ASSIGNED PA | ● high |
| 2001:718:1000:5::/64 | University of Ostrava | RIPE | ASSIGNED | ● high |
| 2001:718:1000:8005::/64 | University of Ostrava | RIPE | ASSIGNED | ● high |
| 2001:718:1005::/48 | University of Ostrava | RIPE | ASSIGNED | ● high |
IPv6 ranges (3)
Footprint over time
11 weekly snapshots · JSON
8
0 netblocks since 2026-07-05
2026-07-05
peak 8
2026-09-06
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(8 of 8)
Possible discrepancies (3)
These blocks are registered to University of Ostrava 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.
| 2001:718:1005::/48 /48 | authorized for AS2852 — CESNET z.s.p.o. |
| 78.128.128.0 – 78.128.146.255 /20 | authorized for AS2852 — CESNET z.s.p.o. |
| 195.113.102.0 – 195.113.112.127 /21 | authorized for AS2852 — CESNET z.s.p.o. |
NIC Handles
DUMY-RIPE
DUMY-RIPE
ORG-UoO2-RIPE
TENCZ-MNT