CoProSys a.s.

COPROSYS-CZ
Data as of 2026-08-23
BGP inherited
Cluster stats
Netblocks74 · 5,564 IPv4 addresses
Cluster ID227744873
RegistryRIPE
Customersfind customers using 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

Footprint over time

4 weekly snapshots · JSON
74 -5 netblocks since 2026-07-26
2026-07-26 peak 79 2026-08-23

IP Ranges (74)

showing 50 of 74 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
77.104.195.128/29 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.195.192/29 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.197.0/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.197.64/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.197.128/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.215.8/29 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.215.16/28 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.215.32/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.215.192/28 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.215.240/30 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.215.244/30 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.217.128/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.225.64/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.225.128/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.225.192/30 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.225.200/29 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.234.0/24 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.235.128/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.237.128/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.239.0/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.239.128/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.239.192/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.241.128/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.242.64/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.242.136/29 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.242.160/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.243.0/24 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.244.0/24 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.246.32/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.246.80/29 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.246.96/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.246.160/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.246.192/28 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.246.224/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.247.96/28 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.251.0/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.251.128/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.252.0/28 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.252.48/28 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.252.64/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.252.144/28 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.252.192/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.253.0/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
77.104.253.128/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
80.82.148.128/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
81.92.149.0/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
81.92.149.128/26 COPROSYS-CZ RIPE ASSIGNED PA ● low
81.92.149.192/27 COPROSYS-CZ RIPE ASSIGNED PA ● low
81.92.151.0/25 COPROSYS-CZ RIPE ASSIGNED PA ● low
81.92.151.128/26 COPROSYS-CZ 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 (74 of 74)
Possible discrepancies (2)

These blocks are registered to CoProSys a.s. 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.

194.212.144.0/22 /22 authorized for AS13036 — T-Mobile Czech Republic a.s.
194.212.152.0/24 /24 authorized for AS13036 — T-Mobile Czech Republic a.s.

NIC Handles

COPROSYS-MNT DUMY-RIPE DUMY-RIPE GTSCZ-MNT