15721 CTCO Riga, Latvia, LV
Adjacency: 4 Upstream: 3 Downstream: 1
Upstream Adjacent AS list
AS12578 APOLLO-AS Latvia, LV
AS197870 IBANPAY, LV
AS9002 RETN-AS, GB
Downstream Adjacent AS list
AS197870 IBANPAY, LV
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 16833 AS15721 ORG+TRN Originate: 4096 /20.00 Transit: 2048 /21.00 CTCO Riga, Latvia, LV
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 % 21274 AS15721 CTCO Riga, Latvia, LV 3 2 1 2 1 33.33% Prefix AS Path Aggregation Suggestion 217.21.168.0/21 4608 7575 2914 9002 15721 197870 15721 15721 15721 15721 15721 217.21.168.0/21 4777 2497 174 12578 15721 + Announce - aggregate of 217.21.168.0/22 (4777 2497 174 12578 15721) and 217.21.172.0/22 (4777 2497 174 12578 15721) 217.21.168.0/22 4777 2497 174 12578 15721 - Withdrawn - aggregated with 217.21.172.0/22 (4777 2497 174 12578 15721) 217.21.172.0/22 4777 2497 174 12578 15721 - Withdrawn - aggregated with 217.21.168.0/22 (4777 2497 174 12578 15721)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS15721 3 More Specifics 3 Total Advertisements CTCO Riga, Latvia, LV
217.21.168.0/21 217.21.160.0/20
217.21.168.0/22 217.21.160.0/20
217.21.172.0/22 217.21.160.0/20
whois: 402332
IANA has recorded AS15721 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS15721\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 'AS15719 - AS15803'
as-block: AS15719 - AS15803
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: 2024-02-13T15:18:50Z
last-modified: 2024-02-13T15:18:50Z
source: RIPE
% Information related to 'AS15721'
% Abuse contact for 'AS15721' is 'sysadmin@ctco.lv'
aut-num: AS15721
org: ORG-CL2-RIPE
as-name: CTCO
descr: Riga, Latvia
import: from AS-CTCO action pref=100; accept AS-LATVIA
import: from AS21016 action pref=50; accept ANY
export: to AS-CTCO announce AS15721
export: to AS21016 action aspath.prepend (AS15721, AS15721); announce AS15721
import: from AS12578 action pref=200; accept ANY
export: to AS12578 announce AS15721
import: from AS197870 action pref=200; accept ANY
export: to AS197870 announce AS15721
import: from AS9002 action pref=50; accept ANY
export: to AS9002 action aspath.prepend (AS15721,AS15721,AS15721,AS15721,AS15721); announce AS15721
admin-c: CH951-RIPE
tech-c: CH951-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: CTCO-MNT
created: 2001-12-13T18:16:00Z
last-modified: 2023-10-20T11:49:35Z
source: RIPE
organisation: ORG-CL2-RIPE
org-name: C.T.CO. Ltd.
country: LV
org-type: LIR
address: Meistaru Street 33
address: LV-1076
address: Valdlauchi
address: LATVIA
phone: +37166952000
admin-c: JK5327-RIPE
admin-c: PG4602-RIPE
mnt-by: CTCO-MNT
mnt-ref: CTCO-MNT
mnt-ref: RIPE-NCC-HM-MNT
mnt-by: RIPE-NCC-HM-MNT
abuse-c: CAC84-RIPE
created: 2004-04-17T11:37:59Z
last-modified: 2020-12-16T13:29:43Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
%
% 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
% https://docs.db.ripe.net/FAQ/#why-did-i-receive-an-error-201-access-denied
% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)