AS25424
Ceznet S.R.O. — ceznet.cz
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Summary
| Country |
 Czechia
|
| Organization | Ceznet S.R.O. |
| Domain | ceznet.cz |
| Number of IPv4 | 33,792 |
| Number of IPv6 | 1.2677× 1030 |
| AS Type | ISP |
| Registry | RIPE NCC |
| Allocated | November 19, 2002 (about 23 years ago) |
| Updated | October 07, 2025 (about 19 days ago) |
IP Ranges
AS25424 announces 7 IPv4 ranges and 2 IPv6 ranges.
That's a total of 33,792 IPv4 addresses and 1.2677× 1030 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 37.9.192.0/21 |
INTERNEXT 2000
|
2,048 | RIPE NCC | ASSIGNED PA |
| 77.92.192.0/19 |
INTERNEXT 2000
|
8,192 | RIPE NCC | ASSIGNED PA |
| 85.92.32.0/19 |
INTERNEXT 2000
|
8,192 | RIPE NCC | ASSIGNED PA |
| 91.109.32.0/21 |
INTERNEXT 2000
|
2,048 | RIPE NCC | ASSIGNED PA |
| 185.157.196.0/22 |
Ceznet S.R.O.
|
1,024 | RIPE NCC | ALLOCATED PA |
| 188.244.48.0/20 |
INTERNEXT 2000
|
4,096 | RIPE NCC | ASSIGNED PA |
| 212.111.0.0/19 |
INTERNEXT 2000
|
8,192 | RIPE NCC | ASSIGNED PA |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2a00:e580::/29 |
Ceznet S.R.O.
|
6.3383× 1029 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a0a:3340::/29 |
Ceznet S.R.O.
|
6.3383× 1029 | RIPE NCC | ALLOCATED-BY-RIR |
Peers
AS25424 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS25424 connects to the global Internet via at least 3 upstream providers. In this setup, AS25424 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.