CTU
BGP inherited
Cluster stats
| Netblocks | 6 |
| Registered in | Denmark (2) · Vietnam (2) · Czechia (1) |
| All fragments | 9 blocks across 3 clusters |
| Cluster ID | 209645452 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 12 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
3 weekly snapshots · JSON
6
0 netblocks since 2026-07-12
2026-07-12
peak 6
2026-07-19
IP Ranges (6)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 130.225.231.56/29 | CTU | RIPE | ASSIGNED PA | ● high |
| 130.225.231.128/29 | CTU | RIPE | ASSIGNED PA | ● high |
| 203.162.41.160/29 | CTU-NET | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 203.162.139.16/29 | CTU-NET | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 2001:878:188::/48 | CTU | RIPE | ASSIGNED | ● high |
| 85.93.96.132/30 | CTU | RIPE | ASSIGNED PA | ● low |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(6 of 6)
Possible discrepancies (1)
These blocks are registered to CTU 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.
| 2001:878:188::/48 /48 | authorized for AS1835 — Forskningsnettet - Danish network for Research and Education |
NIC Handles
AS1835-MNT
DEIC-MNT
DIALTELECOM-MNT
DUMY-RIPE
DUMY-RIPE
MNT-MAXNET
ORG-CA1689-RIPE
TTT1-AP
TTT1-AP
UNIR
VNH4-AP
VNPT