AS Number
AS201594
AS Name
CTU_AS4
Org Name
Czech Telecommunication Office
Country
Czech
Registry

ripe

RegDate

N/A

Updated

2025-07-04T09:49:59Z

AS201594 Looking Glass
IPv4Prefixes

1

IPv6Prefixes

1

IPv4 NUMs

256

IPv6 NUMs(/64)

4,294,967,296

256 IPv4 Addresses
CIDR Description IP Num
185.68.215.0/24 CZ-CTU-MEASUREMENT-SERVER 256
CIDR Description IP NUMs(prefix /64)
2a05:1c47::/32 CZ-CTU-MEASUREMENT-SERVER 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 43,520 17,179,869,184 IPv4 IPv4
AS40994 Alwyzon - Hohl IT e.U., AT Austria 4,608 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 106,240 355,679,338,496 IPv4 IPv4 IPv6 IPv6
AS60602 INOVARE-AS - Inovare-Prim SRL, MD Moldova 3,584 4,294,967,296 IPv4 IPv4
AS5405 INTERDOTLINK - Inter.link GmbH, DE Germany 2,048 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 768 268,435,456 IPv4 IPv4
AS14840 BR.Digital Provider, BR Brazil 70,656 14,010,155,008 IPv4 IPv4
AS22356 Durand do Brasil Ltda, BR Brazil 28,672 4,295,032,832 IPv4 IPv4
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 85,760 274,878,169,088 IPv4 IPv4 IPv6 IPv6
AS6663 TTI-NET - Euroweb Romania S.R.L., RO Romania 54,528 6,442,450,944 IPv4 IPv4 IPv6 IPv6
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 256 0 IPv4 IPv4
AS25248 BlueTone-AS - RADIOKOMUNIKACE a.s., CZ Czech 106,752 4,295,032,832 IPv4 IPv4 IPv6 IPv6
AS4455 BSO - IX Reach Ltd, GB United Kingdom 56,832 8,590,000,128 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 464,128 282,627,370,778,624 IPv4 IPv4
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47,360 12,884,967,424 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20,992 4,294,967,296 IPv4 IPv4 IPv6 IPv6
as-block:       AS200352 - AS203022
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:        2024-10-03T13:30:54Z
last-modified:  2024-10-03T13:30:54Z
source:         RIPE



aut-num:        AS201594
as-name:        CTU_AS4
org:            ORG-CTO1-RIPE
admin-c:        SS41216-RIPE
tech-c:         JK16414-RIPE
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SUPER-CTU
import:         from AS5588 accept ANY
descr:          NIX.CZ
import:         from AS6881 accept ANY
import:         from AS47200 accept ANY
export:         to AS5588 announce AS201594
descr:          NIX.CZ
export:         to AS6881 announce AS201594
export:         to AS47200 announce AS201594
status:         ASSIGNED
created:        2014-09-12T09:04:28Z
last-modified:  2025-07-04T09:49:59Z
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:         [email protected]
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