204021 CIECH, PL
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS15694 ATMAN-ISP-AS ATM S.A., PL
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 70866 AS204021 ORIGIN Originate: 256 /24.00 Transit: 0 /0.00 CIECH, PL
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 % 62358 AS204021 CIECH, PL 1 0 0 1 0 0.00% Prefix AS Path Aggregation Suggestion 213.189.49.0/24 4777 2516 1299 15694 204021
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS204021 1 More Specifics 1 Total Advertisements CIECH, PL
213.189.49.0/24 213.189.32.0/19
whois: 402332
IANA has recorded AS204021 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS204021\n % This is the RIPE Database query service.
% The objects are in RPSL format.
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% 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 'AS204021'
% Abuse contact for 'AS204021' is 'servicedesk@ciechgroup.com'
aut-num: AS204021
as-name: Ciech
org: ORG-CS380-RIPE
import: from AS15694 accept ANY
export: to AS15694 announce AS204021
import: from AS20960 accept ANY
export: to AS20960 announce AS204021
admin-c: ATMA1-RIPE
admin-c: RD6878-RIPE
tech-c: RD6878-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: ATMAN-MNT
created: 2015-09-14T11:55:00Z
last-modified: 2020-11-16T17:51:59Z
source: RIPE
sponsoring-org: ORG-AS25-RIPE
organisation: ORG-CS380-RIPE
org-name: CIECH S.A.
country: PL
org-type: OTHER
address: Wspolna 62
address: 02-682 Warszawa
address: PL
phone: +48226391200
reg-nr: 011179878
abuse-c: AC32896-RIPE
admin-c: RD6878-RIPE
tech-c: RD6878-RIPE
mnt-ref: ATMAN-MNT
mnt-by: ATMAN-MNT
created: 2015-09-10T07:32:42Z
last-modified: 2026-04-29T06:29:10Z
source: RIPE # Filtered
role: ATMAN NOC
address: ATM S.A.
address: ul. Grochowska 21a
address: 04-186 Warsaw
address: Poland
phone: +48-22-5156900
fax-no: +48-22-5156777
admin-c: AW1695-RIPE
admin-c: IM5944-RIPE
admin-c: MW2381-RIPE
admin-c: MW8754-RIPE
admin-c: AW6357-RIPE
admin-c: JM22993-RIPE
tech-c: AW1695-RIPE
tech-c: IM5944-RIPE
tech-c: MW2381-RIPE
tech-c: LP11986-RIPE
tech-c: AP29256-RIPE
tech-c: MW8754-RIPE
tech-c: AW6357-RIPE
tech-c: JM22993-RIPE
nic-hdl: ATMA1-RIPE
mnt-by: ATMAN-MNT
created: 2002-08-04T14:06:36Z
last-modified: 2024-01-08T11:32:07Z
source: RIPE # Filtered
abuse-mailbox: abuse@atman.pl
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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