206208 looking glass

AS201730 Cloud4com s.r.o. 🇨🇿 CZ

Announcing 27 prefixes, seen at the RIS collectors.

IPv4 prefixes
26
10,496 (41 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
1
transit providers observed
Peers
5
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS201730
Name
Cloud4com s.r.o.
Organisation
DataSpring
Country
🇨🇿 CZ
RIR
RIPENCC
Allocated
2014-07-31
Network type
NSP
Traffic levels
5-10Gbps
Scope
Regional
Peering policy
Open
IRR as-set
AS201730:AS-CZ-DS
Website
http://www.dataspring.cz
PeeringDB
net/14769
Exchanges
1
Facilities
2

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

27 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.ripe.net

as-block:       AS200537 - AS202347
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:        2026-06-17T08:25:01Z
last-modified:  2026-06-17T08:25:01Z
source:         RIPE

aut-num:        AS201730
as-name:        DataSpring
org:            ORG-CS814-RIPE
remarks:        DataSpring CZ AS
remarks:        For routing please contact ripe-tech@dataspring.cz
remarks:        General policy for boundary filtering:
remarks:        AFI IPv4: accept 0.0.0.0/0 le 24
remarks:        AFI IPv6: accept ::/0 le 48
import:         from AS199803 accept ANY # Comsource
export:         to AS199803 announce AS-CZ-DS # Comsource
import:         from AS6881 accept ANY # NIX.CZ
import:         from AS6939 accept ANY # Hurricane Electric
import:         from AS47200 accept ANY # NIX.CZ route servers
export:         to AS6881 announce AS-CZ-DS # NIX.CZ
export:         to AS6939 announce AS-CZ-DS # Hurricane Electric
export:         to AS47200 announce AS-CZ-DS # NIX.CZ route servers
export:         to AS5610 announce AS-CZ-DS # O2-CZECH-REPUBLIC
import:         from AS5610 accept ANY # O2-CZECH-REPUBLIC
export:         to AS26415 announce AS-CZ-DS # VERISIGN-AS
import:         from AS26415 accept ANY # VERISIGN-AS
export:         to AS8075 announce AS-CZ-DS # Microsoft
import:         from AS8075 accept ANY # Microsoft
export:         to AS16509 announce AS-CZ-DS # Amazon
import:         from AS16509 accept ANY # Amazon
export:         to AS6855 announce AS-CZ-DS # TMCZ (SLOVAK TELEKOM)
import:         from AS6855 accept ANY # TMCZ (SLOVAK TELEKOM)
import:         from AS16019 accept ANY # Vodafone CZ
export:         to AS16019 announce AS-CZ-DS # Vodafone CZ
import:         from AS20804 accept ANY # EXATEL
export:         to AS20804 announce AS-CZ-DS # EXATEL
import:         from AS32787 accept ANY # Akamai_Prolexic
export:         to AS32787 announce AS-CZ-DS # Akamai_Prolexic
import:         from AS49544 accept ANY # i3D.net
export:         to AS49544 announce AS-CZ-DS # i3D.net
remarks:        CUSTOMERS
import:         from AS44424 accept AS44424 # MALL
export:         to AS44424 announce ANY # MALL
import:         from AS197376 accept AS197376 # TEST-TRANSIT-IPV6PROJECT.EU
export:         to AS197376 announce ANY # TEST-TRANSIT-IPV6PROJECT.EU
import:         from AS215582 accept AS215582 # IPV6PROJECT.EU
export:         to AS215582 announce ANY # IPV6PROJECT.EU
admin-c:        DASP-RIPE
admin-c:        SC26075-RIPE
tech-c:         DASP-RIPE
tech-c:         SC26075-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CLOUD4COM-ROOT-MNT
mnt-by:         MNT-ICT
created:        2014-07-31T15:44:07Z
last-modified:  2024-03-13T09:56:22Z
source:         RIPE # Filtered

organisation:   ORG-CS814-RIPE
org-name:       Cloud4com s.r.o.
country:        CZ
reg-nr:         21050309
org-type:       LIR
address:        Skokansk� 2117/1
address:        16900
address:        Praha 6
address:        CZECH REPUBLIC
phone:          +420602703259
admin-c:        SC26075-RIPE
tech-c:         SC26075-RIPE
abuse-c:        AR74237-RIPE
mnt-ref:        CLOUD4COM-ROOT-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CLOUD4COM-ROOT-MNT
created:        2024-02-20T09:10:34Z
last-modified:  2026-05-13T07:14:12Z
source:         RIPE # Filtered

role:           DataSpring Hostmaster for AS201730
address:        Vinohradska 1511/230, Prague 10, 100 00
address:        Czech Republic
nic-hdl:        DASP-RIPE
admin-c:        JK11817-RIPE
admin-c:        FB17552-RIPE
admin-c:        AS44385-RIPE
tech-c:         JK11817-RIPE
tech-c:         FB17552-RIPE
tech-c:         AS44385-RIPE
mnt-by:         MNT-ICT
created:        2016-02-15T14:35:38Z
last-modified:  2021-12-28T23:35:07Z
source:         RIPE # Filtered

role:           Support C4C
address:        CZECH REPUBLIC
address:        Praha 10
address:        100 00
address:        Vinohradska 1511/230
phone:          +420602703259
nic-hdl:        SC26075-RIPE
mnt-by:         CLOUD4COM-ROOT-MNT
created:        2024-02-20T09:10:33Z
last-modified:  2024-02-20T09:10:34Z
source:         RIPE # Filtered

role:           DataSpring Hostmaster for AS201730
address:        Vinohradska 1511/230, Prague 10, 100 00
address:        Czech Republic
nic-hdl:        DASP-RIPE
admin-c:        JK11817-RIPE
admin-c:        FB17552-RIPE
admin-c:        AS44385-RIPE
tech-c:         JK11817-RIPE
tech-c:         FB17552-RIPE
tech-c:         AS44385-RIPE
mnt-by:         MNT-ICT
created:        2016-02-15T14:35:38Z
last-modified:  2021-12-28T23:35:07Z
source:         RIPE # Filtered

person:         Adam Schmid
address:        K Zizkovu 851/4, Praha 9, 190 00 Vysocany
phone:          +420773752425
nic-hdl:        AS44385-RIPE
mnt-by:         MNT-ICT
created:        2020-08-12T13:15:49Z
last-modified:  2020-08-12T13:15:49Z
source:         RIPE

person:         Filip Beran
address:        DataSpring s.r.o., K Zizkovu 851, 19000 Prague 9
phone:          +420603417556
nic-hdl:        FB17552-RIPE
mnt-by:         MNT-ICT
created:        2020-08-10T12:14:11Z
last-modified:  2020-08-10T12:14:11Z
source:         RIPE

person:         Jan Kalista
address:        Prague
phone:          +420603402705
nic-hdl:        JK11817-RIPE
mnt-by:         MNT-ICT
created:        2017-02-02T12:40:05Z
last-modified:  2023-12-05T21:25:24Z
source:         RIPE # Filtered