51824 ALTERNATIVA-NET, UA
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS48648 KYIVLINK, UA
AS43668 BIGNET-AS, UA
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 37140 AS51824 ORIGIN Originate: 1024 /22.00 Transit: 0 /0.00 ALTERNATIVA-NET, 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 % 47796 AS51824 ALTERNATIVA-NET, UA 2 0 0 2 0 0.00% Prefix AS Path Aggregation Suggestion 91.221.84.0/23 3303 48648 51824 192.162.196.0/23 3303 48648 51824
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS51824 3 More Specifics 3 Total Advertisements ALTERNATIVA-NET, UA
91.221.84.0/24 91.221.84.0/23
91.221.85.0/24 91.221.84.0/23
192.162.196.0/23 192.162.196.0/22
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 91.221.84.0/24 Announced
+ 91.221.85.0/24 Announced
- 91.221.84.0/23 Withdrawn
whois: 402590
IANA has recorded AS51824 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS51824\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 'AS51819 - AS51843'
as-block: AS51819 - AS51843
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: 2026-02-02T15:31:00Z
last-modified: 2026-02-02T15:31:00Z
source: RIPE
% Information related to 'AS51824'
% Abuse contact for 'AS51824' is 'abuse@ispalternativa.net.ua'
aut-num: AS51824
as-name: ALTERNATIVA-NET
remarks: ISP ALTERNATIVA
org: ORG-FA368-RIPE
import: from AS43668 accept ANY
import: from AS48648 accept {0.0.0.0/0}
import: from AS21219 accept ANY
export: to AS43668 announce AS51824
export: to AS48648 announce AS51824
export: to AS21219 announce AS51824
remarks:
remarks: Abuse reports: noc@ispalternativa.net.ua
remarks: NOC: noc@ispalternativa.net.ua
remarks: www: http://ispalternativa.net.ua
remarks:
admin-c: NMIA-RIPE
tech-c: NMIA-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: MNT-ALTERNATIVA
created: 2010-11-25T15:15:07Z
last-modified: 2018-10-11T09:47:03Z
source: RIPE
sponsoring-org: ORG-KL211-RIPE
organisation: ORG-FA368-RIPE
org-name: PE NIKOLAYENKO NIKOLAY IVANOVICH
country: UA
reg-nr: Not Applicable
org-type: OTHER
address: Ukraine 04108, Kiev, Prospekt Pravdy b.33 ap 270
abuse-c: AR19349-RIPE
mnt-ref: MNT-ALTERNATIVA
mnt-by: MNT-ALTERNATIVA
created: 2010-11-05T12:01:24Z
last-modified: 2026-05-13T05:19:57Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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% This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)