CDT-CZ-NET
Cluster stats
Netblocks40
All fragments 56 blocks across 4 clusters
Cluster ID191917917
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 4 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (40)

⬇ export CSV
CIDR Org name Registry Status Confidence
81.19.32.0/22 CDT-CZ-NET RIPE ASSIGNED PA ● low
81.19.36.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
82.117.133.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
82.202.72.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
82.202.82.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
85.13.96.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
85.13.97.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
89.203.202.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
89.203.203.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
89.203.204.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
89.203.220.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
89.203.221.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
89.203.222.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.192.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.193.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.194.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.195.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.196.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.197.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.198.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
131.117.199.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
185.134.0.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
185.134.1.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
185.134.2.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
185.134.3.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
193.179.1.48/30 CDT-CZ RIPE ASSIGNED PA ● low
195.39.54.208/30 CDT-CZ RIPE ASSIGNED PA ● low
195.146.97.0/30 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.99.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.100.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.103.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.104.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.105.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.106.128/28 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.114.0/27 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.120.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
195.146.123.0/24 CDT-CZ-NET RIPE ASSIGNED PA ● low
212.11.111.0/28 CDT-CZ-NET RIPE ASSIGNED PA ● low
212.11.123.0/29 CDT-CZ-NET RIPE ASSIGNED PA ● low
213.235.133.0/24 CDT-CZ-NET 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 (40 of 40)
Possible discrepancies (33)

These blocks are registered to CDT-CZ-NET 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.

81.19.32.0/22 /22 authorized for AS25512 — CD-Telematika a.s.
195.146.99.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
195.146.100.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
82.117.133.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
81.19.36.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
89.203.203.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
89.203.204.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
82.202.72.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
213.235.133.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
89.203.220.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
195.146.120.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
82.202.82.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
195.146.123.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
195.146.104.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
89.203.221.0/24 /24 authorized for AS25512 — CD-Telematika a.s.
+18 more — see the REST API

NIC Handles

CDT-MNT DUMY-RIPE DUMY-RIPE GTSCZ-MNT