CEZNET s.r.o.
Data as of 2026-10-18
BGP inherited
This organisation
| Netblocks | 71 · 147,872 IPv4 addresses |
| IPv6 | 24 prefixes (largest 2a00:1800::/29) |
| Record ID | 250163905 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 32 shared RIR contact/maintainer handles |
| Registry names | 4 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (71)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 37.9.192.0/21 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 46.36.32.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 77.92.192.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 77.237.128.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 81.25.16.0/21 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 81.25.24.0/21 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 82.144.128.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 82.202.0.0/18 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 85.92.32.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 91.109.32.0/21 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 109.234.40.0/21 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 149.255.64.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.67.188.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.115.180.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.116.48.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.116.51.0/24 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.151.168.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.151.172.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.157.196.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.193.128.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.201.12.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.255.116.0/22 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 188.122.192.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 188.244.48.0/20 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 212.90.224.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 212.111.0.0/19 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 213.235.64.0/18 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a00:1800::/32 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a00:1807::/32 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a00:e580::/29 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a02:d00::/32 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a02:25b0::/32 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a03:1180::/32 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a05:1200::/30 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a07:7a00::/29 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a0a:3340::/29 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a0a:4080::/32 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 2a0a:b6c0::/32 | CEZNET s.r.o. | BGP | ANNOUNCED | ● high |
| 185.115.180.0/23 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● medium |
| 185.116.48.0/23 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● medium |
| 185.116.50.0/24 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● medium |
| 185.151.170.0/24 | HAKO | RIPE | ASSIGNED PA | ● medium |
| 185.151.172.0/23 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● medium |
| 185.151.174.0/23 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● medium |
| 37.44.208.0/22 | CEZNET s.r.o. | RIPE | ALLOCATED PA | ● low |
| 46.253.96.0/20 | CEZNET s.r.o. | RIPE | ALLOCATED PA | ● low |
| 77.236.192.0/19 | CEZNET s.r.o. | RIPE | ALLOCATED PA | ● low |
| 81.25.16.0/20 | CEZNET s.r.o. | RIPE | ALLOCATED PA | ● low |
| 89.111.114.0/23 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● low |
| 89.111.116.0/23 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● low |
| 89.111.118.0/24 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● low |
| 89.111.126.0/25 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● low |
| 89.111.126.128/27 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● low |
| 176.123.12.0/22 | CEZNET s.r.o. | RIPE | ASSIGNED PI | ● low |
| 185.115.182.0/23 | CEZNET s.r.o. | RIPE | ASSIGNED PA | ● low |
| 185.134.160.0/22 | CEZNET s.r.o. | RIPE | ALLOCATED PA | ● low |
| 185.137.144.0/22 | CEZNET s.r.o. | RIPE | ALLOCATED PA | ● low |
| 185.151.168.0/21 | CEZNET s.r.o. | RIPE | ALLOCATED PA | ● low |
| 2a00:1800::/29 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a00:1800::/48 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a01:430:295::/48 | CEZNET sro | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a01:a040::/40 | CEZNET s.r.o. | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a01:a040:100::/40 | CEZNET s.r.o. | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a01:a040:200e::/48 | CEZNET s.r.o. | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a01:a040:2010::/48 | CEZNET s.r.o. | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a02:d00::/29 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a03:f280::/29 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a06:ed40::/29 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a07:4c0::/29 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a0a:bdc0::/29 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-RIR | ● low |
| 2a0e:5340::/29 | CEZNET s.r.o. | RIPE | ALLOCATED-BY-RIR | ● low |
IPv6 ranges (24)
Footprint over time
17 weekly snapshots · JSON
97
+10 netblocks since 2026-07-05
2026-07-05
peak 97
2026-10-18
Domains this organisation publishes
what's this?Other domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: B
how networks compare →
93.8%
of checked blocks have valid RPKI ROA coverage
(91 of 97)
Possible discrepancies (16)
These blocks are registered to CEZNET s.r.o. 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.
| 2a07:4c0::/29 /29 | authorized for AS42306 — Edera Group a.s. |
| 2a03:f280::/29 /29 | authorized for AS42306 — Edera Group a.s. |
| 2a0e:5340::/29 /29 | authorized for AS42306 — Edera Group a.s. |
| 2a06:ed40::/29 /29 | authorized for AS42306 — Edera Group a.s. |
| 2a01:a040::/40 /40 | authorized for AS39791 — Telco Pro Services, a. s. |
| 2a01:a040:100::/40 /40 | authorized for AS39791 — Telco Pro Services, a. s. |
| 2a01:a040:200e::/48 /48 | authorized for AS39791 — Telco Pro Services, a. s. |
| 2a01:a040:2010::/48 /48 | authorized for AS39791 — Telco Pro Services, a. s. |
| 77.236.192.0/19 /19 | authorized for AS42306 — Edera Group a.s. |
| 185.137.144.0/22 /22 | authorized for AS42306 — Edera Group a.s. |
| 37.44.208.0/22 /22 | authorized for AS42306 — Edera Group a.s. |
| 176.123.12.0/22 /22 | authorized for AS42306 — Edera Group a.s. |
| 185.134.160.0/22 /22 | authorized for AS42306 — Edera Group a.s. |
| 89.111.114.0/23 /23 | authorized for AS39791 — Telco Pro Services, a. s. |
| 89.111.116.0/23 /23 | authorized for AS39791 — Telco Pro Services, a. s. |
+1 more — see the REST API
NIC Handles
AS198002
AS201654
AS204064
AS25424
AS47493
AS49101
AS57728
AS6740
CEZNET-MNT
CEZNET-MNT
CEZNETAS-MNT
CH13482-RIPE
+20 more