51528 CENTR-AS, UA
Adjacency: 5 Upstream: 2 Downstream: 3
Upstream Adjacent AS list
AS6939 HURRICANE - Hurricane Electric LLC, US
AS9002 RETN-AS, GB
Downstream Adjacent AS list
AS51279 ASSUTYRIN, UA
AS198030 SHANTYR, UA
AS197251 TEREWENKO-AS, UA
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 25486 AS51528 ORG+TRN Originate: 2048 /21.00 Transit: 1792 /21.19 CENTR-AS, UA
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 % 23711 AS51528 CENTR-AS, UA 3 2 1 2 1 33.33% Prefix AS Path Aggregation Suggestion 91.219.52.0/22 4608 7575 2914 9002 51528 91.219.52.0/22 4608 4826 6939 51528 + Announce - aggregate of 91.219.52.0/23 (4608 4826 6939 51528) and 91.219.54.0/23 (4608 4826 6939 51528) 91.219.52.0/23 4608 4826 6939 51528 - Withdrawn - aggregated with 91.219.54.0/23 (4608 4826 6939 51528) 91.219.54.0/23 4608 4826 6939 51528 - Withdrawn - aggregated with 91.219.52.0/23 (4608 4826 6939 51528)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS51528 2 More Specifics 3 Total Advertisements CENTR-AS, UA
91.219.52.0/23 91.219.52.0/22
91.219.54.0/23 91.219.52.0/22
whois: 402332
IANA has recorded AS51528 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS51528\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 'AS51357 - AS51817'
as-block: AS51357 - AS51817
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: 2025-02-13T13:57:44Z
last-modified: 2025-02-13T13:57:44Z
source: RIPE
% Information related to 'AS51528'
% Abuse contact for 'AS51528' is 'kozobrod@ukr.net'
aut-num: AS51528
as-name: CENTR-AS
org: ORG-KAA9-RIPE
remarks: ================================= EXPRESS
import: from AS15738 accept ANY
export: to AS15738 announce AS51528
remarks: =================================== TELZA
import: from AS49327 accept AS-TELZA
export: to AS49327 announce ANY
remarks: =================================== SUBNET
import: from AS51279 accept AS-SUBNET
export: to AS51279 announce ANY
remarks: ================================== BEST-ON
import: from AS198030 accept AS198030
export: to AS198030 announce ANY
remarks: =================================== KLAD
import: from AS197251 accept AS197251
export: to AS197251 announce ANY
remarks: ================================== RETN
import: from AS9002 accept ANY
export: to AS9002 announce AS-CENTRZPUA
remarks: =================================== DG
import: from AS21219 accept ANY
export: to AS21219 announce AS-CENTRZPUA
remarks: =================================== VEGA
import: from AS12883 accept ANY
export: to AS12883 announce AS-CENTRZPUA
remarks: =================================== UTG
import: from AS50581 accept ANY
export: to AS50581 announce AS-CENTRZPUA
remarks: =================================== GIGANET
import: from AS59613 accept ANY
export: to AS59613 announce AS51528
remarks: =================================== FLAGMAN.ZP.UA
import: from AS48045 accept AS-FLAGMAN
export: to AS48045 announce AS-CENTRX
remarks: =================================== TRIOLAN
import: from AS13188 accept AS13188
export: to AS13188 announce AS-CENTRX
remarks: =================================== DIANET
import: from AS60754 accept AS60754
export: to AS60754 announce AS-CENTRX
remarks: ================================================
admin-c: CENT11-RIPE
tech-c: CENT11-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: MNT-CENTR
created: 2010-09-20T12:26:04Z
last-modified: 2022-06-03T15:46:38Z
source: RIPE
sponsoring-org: ORG-TCI1-RIPE
organisation: ORG-KAA9-RIPE
org-name: KOZOBROD ANDRIY ANATOLIYOVICH
country: UA
org-type: OTHER
address: 69005, Ukraine, Zaporizhzhya, pr. Soborny, 133, ap. 149
abuse-c: AR24351-RIPE
mnt-ref: MNT-CENTR
mnt-by: MNT-CENTR
created: 2010-09-13T12:14:01Z
last-modified: 2025-09-01T15:47:49Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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