CAS Software AG
GLEIF verified
Complete entity footprint
2 linked clusters ·
31 netblocks ·
66,056 IPv4 addresses
This organisation's clusters combined by evidence —
shared GLEIF corporate family
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
391200D9A1YUNHHYQC02
Registered name
CAS Software AG
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 18 · 66,056 IPv4 addresses |
| Registered in | Germany (8) · France (3) · Czechia (1) |
| Cluster ID | 209034838 |
| Registry | RIPE |
| Owner jurisdiction | DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 391200D9A1YUNHHYQC02 |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 6 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
19
+11 netblocks since 2026-07-05
2026-07-05
peak 19
2026-07-19
IP Ranges (18)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 37.228.160.96/28 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 37.228.161.208/28 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 81.26.172.128/26 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 85.115.20.0/27 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 85.115.25.16/30 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 85.115.28.224/29 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 93.189.159.176/29 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 213.144.5.0/24 | CAS Software AG | RIPE | ASSIGNED PA | ● high |
| 78.40.121.224/27 | CAS-IGU | RIPE | ASSIGNED PA | ● low |
| 78.40.127.160/27 | CAS-IGU | RIPE | ASSIGNED PA | ● low |
| 147.231.0.0/16 | CAS-TCZ | RIPE | LEGACY | ● low |
| 158.58.177.64/26 | CAS-IGU | RIPE | ASSIGNED PA | ● low |
| 2001:718:400::/42 | CAS-6TCZ | RIPE | ALLOCATED-BY-LIR | ● low |
| 2001:718:400::/44 | CAS-PRG-6TCZ | RIPE | AGGREGATED-BY-LIR | ● low |
| 2001:718:40f::/48 | CAS-PRG-6TCZ | RIPE | AGGREGATED-BY-LIR | ● low |
| 2001:718:410::/44 | CAS-PRG-6TCZ | RIPE | AGGREGATED-BY-LIR | ● low |
| 2001:718:1e00:8100::/56 | CAS-IC-6TCZ | RIPE | ASSIGNED | ● low |
| 2001:718:1e01::/48 | CAS-6TCZ | RIPE | ASSIGNED | ● low |
Domains hosted in this network
what's this?Corporate group (2 confirmed entities)
- YELLOWMAP-AG 13 blocks
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(18 of 18)
Possible discrepancies (8)
These blocks are registered to CAS Software AG but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2001:718:400::/42 /42 | authorized for AS2852 — CESNET z.s.p.o. |
| 2001:718:400::/44 /44 | authorized for AS2852 — CESNET z.s.p.o. |
| 2001:718:410::/44 /44 | authorized for AS2852 — CESNET z.s.p.o. |
| 2001:718:1e01::/48 /48 | authorized for AS2852 — CESNET z.s.p.o. |
| 2001:718:40f::/48 /48 | authorized for AS2852 — CESNET z.s.p.o. |
| 2001:718:1e00:8100::/56 /56 | authorized for AS2852 — CESNET z.s.p.o. |
| 147.231.0.0/16 /16 | authorized for AS2852 — CESNET z.s.p.o. |
| 213.144.5.0/24 /24 | authorized for AS12843 — TelemaxX Telekommunikation GmbH |
NIC Handles
DUMY-RIPE
DUMY-RIPE
IGUANE-MNT
ORG-AoSo1-RIPE
ORG-CSA135-RIPE
RIPE-NCC-LEGACY-MNT
TENCZ-MNT
TXX-MNT