AS57728 - CEZNET-AS - CEZNET s.r.o., CZ

Czech
AS Number
AS57728
AS Name
CEZNET-AS
Org Name
CEZNET s.r.o.
Country / Region
Czech
Registry

ripe

RegDate

Updated

2025-04-24T14:15:44Z

AS57728 Looking Glass
IPv4Prefixes

5

IPv6Prefixes

3

IPv4 NUMs

15,360

IPv6 NUMs(/64)

12,884,901,888

CIDR Description IP Num
81.25.16.0/21
IRR Valid
CERBEROSNET 2048
81.25.24.0/21
IRR Valid
CEZNET s.r.o. 2048
109.234.40.0/21
IRR Valid
CEZNET s.r.o. 2048
185.255.116.0/22
IRR Valid
CEZNET s.r.o. 1024
188.122.192.0/19
IRR Valid
Magnalink, a.s. 8192
CIDR Description IP NUMs(prefix /64)
2a00:1800::/32
IRR Valid
CEZNET s.r.o. 4294967296
2a00:1807::/32
IRR Valid
CEZNET s.r.o. 4294967296
2a0a:b6c0::/32
IRR Valid
Magnalink, a.s. 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS39791 TPS-AS - Telco Pro Services, a. s., CZ Czech 18,688 4,295,032,832 IPv4 IPv4 IPv6 IPv6

Whois Record

as-block AS57370 - AS57973

as-block
descr
RIPE NCC ASN block
remarks
These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by
RIPE-NCC-HM-MNT
created
2025-04-24T14:15:44Z
last-modified
2025-04-24T14:15:44Z
source
RIPE

aut-num AS57728

aut-num
as-name
CEZNET-AS
org
ORG-TBS13-RIPE
remarks
---- NIX.CZ ----
---- PEERING.CZ ----
---- Telia ----
---- TPS ----
---- Superhosting.cz ----
---- Cerberos ----
---- 4NET ----
---- CSC ----
---- UPC ----
import
from AS47200 accept ANY
from AS61195 accept ANY
from AS1299 accept ANY
from AS39791 accept ANY
from AS39392 accept ANY
from AS42477 accept ANY
from AS198346 accept AS198346
from AS62298 accept AS62298
from AS6830 accept ANY
export
to AS47200 announce AS-SET-HELIOSMB
to AS61195 announce AS-SET-HELIOSMB
to AS1299 announce AS-SET-HELIOSMB
to AS39791 announce AS-SET-HELIOSMB
to AS39392 announce AS-SET-HELIOSMB
to AS42477 announce AS-SET-HELIOSMB
to AS198346 announce AS-SET-HELIOSMB
to AS62298 announce AS-SET-HELIOSMB
to AS6830 announce AS57728
admin-c
CH13482-RIPE
tech-c
CH13482-RIPE
status
ASSIGNED
mnt-by
RIPE-NCC-END-MNT
CEZNET-MNT
created
2019-10-21T06:50:54Z
last-modified
2025-09-26T09:55:20Z
source
RIPE

organisation ORG-TBS13-RIPE

organisation
ORG-TBS13-RIPE
org-name
CEZNET s.r.o.
country
CZ
reg-nr
26378191
org-type
LIR
address
Duhova 1531/3
140 00
Praha 4
CZECH REPUBLIC
phone
+420 211 046 699
e-mail
dohled@ceznet.cz
admin-c
CH13482-RIPE
tech-c
CH13482-RIPE
abuse-c
CH13482-RIPE
mnt-ref
CEZNET-MNT
mnt-by
RIPE-NCC-HM-MNT
CEZNET-MNT
created
2017-04-26T07:50:49Z
last-modified
2026-05-13T07:38:07Z
source
RIPE

role CEZNET hostmaster

role
CEZNET hostmaster
address
CEZNET s.r.o.
Vilemovska 1602
Tachov
347 01
The Czech Republic
e-mail
dohled@ceznet.cz
abuse-mailbox
dohled@ceznet.cz
phone
+420 211 046 699
admin-c
MV6352-RIPE
tech-c
KD4331-RIPE
MJ83172-RIPE
nic-hdl
CH13482-RIPE
mnt-by
CEZNET-MNT
created
2024-01-12T08:23:53Z
last-modified
2024-01-12T08:25:01Z
source
RIPE
 

as-block:       AS57370 - AS57973
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2025-04-24T14:15:44Z
last-modified:  2025-04-24T14:15:44Z
source:         RIPE



aut-num:        AS57728
as-name:        CEZNET-AS
org:            ORG-TBS13-RIPE
remarks:        ---- NIX.CZ ----
import:         from AS47200 accept ANY
export:         to AS47200 announce AS-SET-HELIOSMB
remarks:        ---- PEERING.CZ ----
import:         from AS61195 accept ANY
export:         to AS61195 announce AS-SET-HELIOSMB
remarks:        ---- Telia ----
import:         from AS1299 accept ANY
export:         to AS1299 announce AS-SET-HELIOSMB
remarks:        ---- TPS ----
import:         from AS39791 accept ANY
export:         to AS39791 announce AS-SET-HELIOSMB
remarks:        ---- Superhosting.cz ----
import:         from AS39392 accept ANY
export:         to AS39392 announce AS-SET-HELIOSMB
remarks:        ---- Cerberos ----
import:         from AS42477 accept ANY
export:         to AS42477 announce AS-SET-HELIOSMB
remarks:        ---- 4NET ----
import:         from AS198346 accept AS198346
export:         to AS198346 announce AS-SET-HELIOSMB
remarks:        ---- CSC ----
import:         from AS62298 accept AS62298
export:         to AS62298 announce AS-SET-HELIOSMB
remarks:        ---- UPC ----
import:         from AS6830 accept ANY
export:         to AS6830 announce AS57728
admin-c:        CH13482-RIPE
tech-c:         CH13482-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CEZNET-MNT
created:        2019-10-21T06:50:54Z
last-modified:  2025-09-26T09:55:20Z
source:         RIPE

organisation:   ORG-TBS13-RIPE
org-name:       CEZNET s.r.o.
country:        CZ
reg-nr:         26378191
org-type:       LIR
address:        Duhova 1531/3
address:        140 00
address:        Praha 4
address:        CZECH REPUBLIC
phone:          +420 211 046 699
e-mail:         dohled@ceznet.cz
admin-c:        CH13482-RIPE
tech-c:         CH13482-RIPE
abuse-c:        CH13482-RIPE
mnt-ref:        CEZNET-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CEZNET-MNT
created:        2017-04-26T07:50:49Z
last-modified:  2026-05-13T07:38:07Z
source:         RIPE

role:           CEZNET hostmaster
address:        CEZNET s.r.o.
address:        Vilemovska 1602
address:        Tachov
address:        347 01
address:        The Czech Republic
e-mail:         dohled@ceznet.cz
abuse-mailbox:  dohled@ceznet.cz
phone:          +420 211 046 699
admin-c:        MV6352-RIPE
tech-c:         KD4331-RIPE
tech-c:         MJ83172-RIPE
nic-hdl:        CH13482-RIPE
mnt-by:         CEZNET-MNT
created:        2024-01-12T08:23:53Z
last-modified:  2024-01-12T08:25:01Z
source:         RIPE