AS Number
AS203208
AS Name
CTU_AS4_2
Org Name
Czech Telecommunication Office
Country
Czech
Registry

ripe

RegDate

Updated

2024-11-12T15:22:00Z

AS203208 Looking Glass
IPv4Prefixes

2

IPv6Prefixes

3

IPv4 NUMs

768

IPv6 NUMs(/64)

30,064,771,072

768 IPv4 Addresses
CIDR Description IP Num
185.68.212.0/23
IRR Valid
CZ-CTU-SOKOLOVSKA-INTERNET 512
185.68.214.0/24
IRR Valid
CZ-CTU-SOKOLOVSKA-INTERNET 256
CIDR Description IP NUMs(prefix /64)
2a05:1c40::/30
IRR Valid
CZ-CTU-SOKOLOVSKA-INTERNET 17179869184
2a05:1c44::/31
IRR Valid
CZ-CTU-SOKOLOVSKA-INTERNET 8589934592
2a05:1c46::/32
IRR Valid
CZ-CTU-SOKOLOVSKA-INTERNET 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS6855 SK-TELEKOM - Slovak Telekom, a.s., SK Slovakia 673,280 42,950,000,640 IPv4 IPv4 IPv6 IPv6
as-block:       AS203113 - AS203887
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:        2024-11-12T15:22:00Z
last-modified:  2024-11-12T15:22:00Z
source:         RIPE



aut-num:        AS203208
as-name:        CTU_AS4_2
org:            ORG-CTO1-RIPE
import:         from AS5588 accept ANY
export:         to AS5588 announce AS203208
import:         from AS12767 accept ANY
export:         to AS12767 announce AS203208
admin-c:        SS41216-RIPE
tech-c:         JK16414-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SUPER-CTU
created:        2016-03-08T14:32:58Z
last-modified:  2025-07-04T09:55:24Z
source:         RIPE

organisation:   ORG-CTO1-RIPE
org-name:       Czech Telecommunication Office
country:        CZ
org-type:       LIR
address:        Sokolovska 219
address:        19000
address:        Prague
address:        CZECH REPUBLIC
phone:          +420224004601
fax-no:         +420224004827
e-mail:         schmieds@ctu.cz
abuse-c:        AC28632-RIPE
mnt-ref:        SUPER-CTU
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SUPER-CTU
created:        2014-08-11T09:41:33Z
last-modified:  2025-07-07T11:38:26Z
source:         RIPE
admin-c:        SS41216-RIPE

person:         Jan Krusina
address:        Sokolovska 219, Prague, 19000, Czech Republic
phone:          +420224004667
nic-hdl:        JK16414-RIPE
mnt-by:         SUPER-CTU
created:        2025-07-04T09:38:42Z
last-modified:  2025-07-04T09:38:42Z
source:         RIPE

person:         Stanislav Schmied
address:        Sokolovska 219, Prague, 19000, Czech Republic
phone:          +420224004601
nic-hdl:        SS41216-RIPE
mnt-by:         SUPER-CTU
created:        2025-07-04T09:01:31Z
last-modified:  2025-07-04T09:01:31Z
source:         RIPE