204007 KLEISSNER, CZ
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS39392 SUPERNETWORK _, CZ
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 46500 AS204007 ORIGIN Originate: 768 /22.42 Transit: 0 /0.00 KLEISSNER, CZ
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 27415 AS204007 KLEISSNER, CZ 3 2 1 2 1 33.33% Prefix AS Path Aggregation Suggestion 185.185.216.0/23 4777 2497 174 39392 204007 + Announce - aggregate of 185.185.216.0/24 (4777 2497 174 39392 204007) and 185.185.217.0/24 (4777 2497 174 39392 204007) 185.185.216.0/24 4777 2497 174 39392 204007 - Withdrawn - aggregated with 185.185.217.0/24 (4777 2497 174 39392 204007) 185.185.217.0/24 4777 2497 174 39392 204007 - Withdrawn - aggregated with 185.185.216.0/24 (4777 2497 174 39392 204007) 185.185.219.0/24 4777 2497 174 39392 204007
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS204007 3 More Specifics 3 Total Advertisements KLEISSNER, CZ
185.185.216.0/24 185.185.216.0/22
185.185.217.0/24 185.185.216.0/22
185.185.219.0/24 185.185.216.0/22
whois: 402332
IANA has recorded AS204007 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS204007\n % This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html
% Note: this output has been filtered.
% Information related to 'AS203940 - AS205662'
as-block: AS203940 - AS205662
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: 2026-03-05T15:29:31Z
last-modified: 2026-03-05T15:29:31Z
source: RIPE
% Information related to 'AS204007'
% Abuse contact for 'AS204007' is 'abuse@kleissner.investments'
aut-num: AS204007
as-name: Kleissner
org: ORG-KIS7-RIPE
import: from AS39392 accept ANY
export: to AS39392 announce AS204007
import: from AS174 accept ANY
export: to AS174 announce AS204007
mp-import: afi ipv6.unicast from AS39392 accept ANY
mp-export: afi ipv6.unicast to AS39392 announce AS204007
mp-import: afi ipv6.unicast from AS174 accept ANY
mp-export: afi ipv6.unicast to AS174 announce AS204007
admin-c: DT7922-RIPE
tech-c: DT7922-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: cz-kleissner-1-mnt
created: 2018-04-11T14:41:08Z
last-modified: 2020-05-09T10:07:02Z
source: RIPE
organisation: ORG-KIS7-RIPE
org-name: Kleissner Investments s.r.o.
country: CZ
org-type: LIR
address: Na strzi 1702/65
address: 140 00
address: Praha 4
address: CZECH REPUBLIC
phone: +420774346764
admin-c: DT7922-RIPE
tech-c: DT7922-RIPE
abuse-c: AR38939-RIPE
mnt-ref: cz-kleissner-1-mnt
mnt-by: RIPE-NCC-HM-MNT
mnt-by: cz-kleissner-1-mnt
created: 2017-01-13T11:59:12Z
last-modified: 2020-12-16T13:03:49Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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% Queries from your IP address have passed the daily limit of controlled objects.
% Access from your host has been temporarily denied.
% For more information, see
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% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)