206208 looking glass

AS200600 Seznam.cz datova centra, s.r.o. 🇨🇿 CZ

Announcing 2 prefixes, seen at the RIS collectors.

IPv4 prefixes
1
1,024 (4 × /24)
IPv6 prefixes
1
8 × /32
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS200600
Name
Seznam.cz datova centra, s.r.o.
Organisation
Seznam.cz datova centra
Country
🇨🇿 CZ
RIR
RIPENCC
Allocated
2015-05-26
Network type
Content
Traffic levels
50-100Gbps
Scope
Regional
Peering policy
No
IRR as-set
AS-SEZNAM-CZ-DC
Website
http://www.seznam.cz
PeeringDB
net/23498

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

2 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:        AS200600
as-name:        SEZNAM-CZ-DC
org:            ORG-SDCS7-RIPE
import:         from AS43037 accept ANY
export:         to AS43037 announce AS200600
import:         from AS5610 accept ANY
export:         to AS5610 announce AS200600
admin-c:        SZN5-RIPE
tech-c:         SZN11-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SEZNAM-MNT
created:        2015-05-26T16:20:47Z
last-modified:  2018-09-04T11:36:19Z
source:         RIPE

organisation:   ORG-SDCS7-RIPE
org-name:       Seznam.cz datova centra, s.r.o.
country:        CZ
reg-nr:         01673408
org-type:       LIR
address:        Radlicka 3294/10
address:        15000
address:        Prague 5
address:        CZECH REPUBLIC
phone:          +420 234 694 111
admin-c:        PZ172-RIPE
tech-c:         SZN10-RIPE
tech-c:         SZN11-RIPE
abuse-c:        AR32161-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SEZNAM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SEZNAM-MNT
created:        2015-05-15T08:37:14Z
last-modified:  2026-05-13T07:36:16Z
source:         RIPE # Filtered

role:           Seznam.cz IT department
address:        Radlicka 3294/10 150 00 Prague 5 Czech Republic
phone:          +420 602 126 570
abuse-mailbox:  abuse@seznam.cz
admin-c:        PZ172-RIPE
tech-c:         SZN11-RIPE
tech-c:         SZN10-RIPE
nic-hdl:        SZN5-RIPE
mnt-by:         SEZNAM-MNT
created:        2007-05-06T15:50:27Z
last-modified:  2015-07-03T13:19:00Z
source:         RIPE # Filtered

person:         Tomas Prochazka
address:        Radlicka 3294/10 150 00 Prague 5 Czech Republic
phone:          +420 234 694 111
nic-hdl:        SZN11-RIPE
mnt-by:         SEZNAM-MNT
created:        2014-02-05T10:32:56Z
last-modified:  2025-03-24T15:44:32Z
source:         RIPE # Filtered