CSU CARDSYSTEM S.A
Cluster stats
| Netblocks | 22 |
| All fragments | 36 blocks across 13 clusters |
| Cluster ID | 191614792 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 20 shared RIR contact/maintainer handles |
| Registry names | 6 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
22
0 netblocks since 2026-07-05
2026-07-05
peak 22
2026-07-06
IP Ranges (22)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 117.240.72.96/28 | CSU-II | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 117.240.72.112/28 | CSU-I | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 117.240.72.128/28 | CSU-III | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 131.161.212.0/23 | CSU CARDSYSTEM S.A | BGP | ANNOUNCED | ● high |
| 131.161.212.0/22 | CSU CARDSYSTEM S.A | BGP | ANNOUNCED | ● high |
| 131.161.214.0/23 | CSU CARDSYSTEM S.A | BGP | ANNOUNCED | ● high |
| 202.163.226.224/27 | CSU-PH | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 193.85.245.8/29 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 193.179.240.44/30 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 193.179.240.112/28 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 194.149.101.118/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 194.213.43.236/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 194.213.50.156/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 194.213.222.248/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 195.39.4.8/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 195.39.10.176/28 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 195.47.41.32/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 195.144.99.68/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 212.47.2.32/31 | CSU-CZ | RIPE | ASSIGNED PA | ● low |
| 2001:af0:8000:1404::/64 | CSU-CZ | RIPE | ASSIGNED | ● low |
| 2001:af0:8000:1405::/64 | CSU-CZ | RIPE | ASSIGNED | ● low |
| 2001:af0:fffb::/48 | CSU-CZ | RIPE | ASSIGNED | ● low |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
86.4%
of checked blocks have valid RPKI ROA coverage
(19 of 22)
Possible discrepancies (1)
These blocks are registered to CSU CARDSYSTEM S.A 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:af0:fffb::/48 /48 | authorized for AS13036 — T-Mobile Czech Republic a.s. |
NIC Handles
AE135-AP
AR30-AP
AR30-AP
AS264401
CDN1-AP
CS103-AP
CS103-AP
DUMY-RIPE
DUMY-RIPE
GTSCZ-MNT
MAINT-IN-DOT
MAINT-PH-EPLDT
+8 more