21011 TOPNET TopNet, Kiev, Ukraine
Adjacency: 7 Upstream: 1 Downstream: 6
Upstream Adjacent AS list
AS31445 TTC-AS TN Aggregation network
Downstream Adjacent AS list
AS35737 RIAD-AS ISP RIAD Ltd
AS33997 DARLICS-AS Darlics ltd. provides IP transport and Internet
AS25150 DCTEL-AS DCTel Ltd
AS34068 INGOK-AS Ingulets Ore-Dressing Plant IP Transport Network
AS35213 COMPNETUA-AS Kompjuternie seti
AS31598 TELECOMAX-AS TELECOMAX
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 6377 AS21011 ORG+TRN Originate: 9472 /18.79 Transit: 2304 /20.83 TOPNET TopNet, Kiev, Ukraine
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 % 3192 AS21011 TOPNET TopNet, Kiev, Ukraine 6 3 0 3 3 50.00% Prefix AS Path Aggregation Suggestion 88.81.224.0/20 4637 3549 3327 31445 21011 88.81.244.0/22 4637 3549 3327 31445 21011 88.81.244.0/24 4637 3549 3327 31445 21011 - Withdrawn - matching aggregate 88.81.244.0/22 4637 3549 3327 31445 21011 88.81.248.0/21 4637 3549 3327 31445 21011 88.81.248.0/22 4637 3549 3327 31445 21011 - Withdrawn - matching aggregate 88.81.248.0/21 4637 3549 3327 31445 21011 88.81.252.0/22 4637 3549 3327 31445 21011 - Withdrawn - matching aggregate 88.81.248.0/21 4637 3549 3327 31445 21011
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS21011 6 More Specifics 6 Total Advertisements TOPNET TopNet, Kiev, Ukraine
88.81.224.0/20 88.81.224.0/19
88.81.244.0/22 88.81.224.0/19
88.81.244.0/24 88.81.224.0/19
88.81.248.0/21 88.81.224.0/19
88.81.248.0/22 88.81.224.0/19
88.81.252.0/22 88.81.224.0/19
whois: 402603
IANA has recorded AS21011 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS21011\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 'AS21004 - AS21151'
as-block: AS21004 - AS21151
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: 2018-11-22T15:27:27Z
last-modified: 2018-11-22T15:27:27Z
source: RIPE
% Information related to 'AS21011'
% Abuse contact for 'AS21011' is 'ripe-abuse@datagroup.ua'
aut-num: AS21011
as-name: Datagroup
org: ORG-DL9-RIPE
remarks: -------------------------------------------------
remarks: in case of abuse please contact: ripe-abuse@datagroup.ua
remarks: for operational issues please contact: noc@datagroup.ua
remarks: -------------------------------------------------
admin-c: DCOM-RIPE
tech-c: DCOM-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: DATACOM-NOC
created: 2002-01-24T14:02:17Z
last-modified: 2026-03-09T10:05:20Z
source: RIPE
organisation: ORG-DL9-RIPE
org-name: PRIVATE JOINT STOCK COMPANY "DATAGROUP"
country: UA
reg-nr: 31720260
org-type: LIR
address: 31-33 Brodskikh Sim'i str
address: 03057
address: Kyiv
address: UKRAINE
phone: +380 44 5380008
phone: +380577660000
fax-no: +380 44 5380007
admin-c: QBRO-RIPE
admin-c: IGNT-RIPE
admin-c: SQV-RIPE
admin-c: CRF-RIPE
abuse-c: DCOM-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: DATACOM-NOC
mnt-by: RIPE-NCC-HM-MNT
mnt-by: DATACOM-NOC
created: 2004-04-17T12:08:50Z
last-modified: 2026-05-13T07:30:13Z
source: RIPE # Filtered
role: DATACOM NOC
address: PJSC DATAGROUP
address: Smolenskaya str., 31-33
address: 03005 Kiyv
address: Ukraine
remarks: http://www.datagroup.ua
abuse-mailbox: ripe-abuse@datagroup.ua
remarks: in case of abuse please contact: ripe-abuse@datagroup.ua
remarks: for operational issues please contact: noc@datagroup.ua
admin-c: CRF-RIPE
admin-c: SQV-RIPE
admin-c: IGNT-RIPE
admin-c: QBRO-RIPE
tech-c: CRF-RIPE
tech-c: SQV-RIPE
tech-c: IGNT-RIPE
tech-c: QBRO-RIPE
nic-hdl: DCOM-RIPE
mnt-by: DATACOM-NOC
created: 2002-07-02T08:26:20Z
last-modified: 2026-03-06T15:01:38Z
source: RIPE # Filtered
% This query was served by the RIPE Database Query Service version 1.122.1 (BUSA)