204457 ATLANTIS-CENTRAL, TR
Adjacency: 15 Upstream: 7 Downstream: 8
Upstream Adjacent AS list
AS293 ESNET, US
AS37100 SEACOM-AS, MU
AS12552 IPO-EU, SE
AS6939 HURRICANE, US
AS6204 ZET-NET ZET.NET IP Transit, RO
AS9002 RETN-AS, GB
AS44901 BELCLOUD, BG
Downstream Adjacent AS list
AS51722 TEKNOSOS, TR
AS6823 TR-3C1B-TELEKOM, TR
AS205570 SIBANET, TR
AS204036 NOVA, TR
AS212193 VIVANET, TR
AS201178 EURONET, TR
AS49565 POLE-TELEKOM, TR
AS202303 AS-TOTWIFI, ES
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 14634 AS204457 ORG+TRN Originate: 5632 /19.54 Transit: 9216 /18.83 ATLANTIS-CENTRAL, TR
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 % 7900 AS204457 ATLANTIS-CENTRAL, TR 22 10 4 16 6 27.27% Prefix AS Path Aggregation Suggestion 45.94.5.0/24 6939 204457 45.94.7.0/24 6939 204457 45.156.30.0/23 6939 204457 + Announce - aggregate of 45.156.30.0/24 (6939 204457) and 45.156.31.0/24 (6939 204457) 45.156.30.0/24 6939 204457 - Withdrawn - aggregated with 45.156.31.0/24 (6939 204457) 45.156.31.0/24 6939 204457 - Withdrawn - aggregated with 45.156.30.0/24 (6939 204457) 87.121.22.0/24 6939 204457 94.103.124.0/24 6939 204457 95.141.248.0/24 6939 204457 131.222.230.0/23 6939 204457 + Announce - aggregate of 131.222.230.0/24 (6939 204457) and 131.222.231.0/24 (6939 204457) 131.222.230.0/24 6939 204457 - Withdrawn - aggregated with 131.222.231.0/24 (6939 204457) 131.222.231.0/24 6939 204457 - Withdrawn - aggregated with 131.222.230.0/24 (6939 204457) 131.222.232.0/23 6939 204457 + Announce - aggregate of 131.222.232.0/24 (6939 204457) and 131.222.233.0/24 (6939 204457) 131.222.232.0/24 6939 204457 - Withdrawn - aggregated with 131.222.233.0/24 (6939 204457) 131.222.233.0/24 6939 204457 - Withdrawn - aggregated with 131.222.232.0/24 (6939 204457) 185.165.77.0/24 293 204457 185.165.78.0/24 293 204457 185.248.12.0/22 6939 204457 + Announce - aggregate of 185.248.12.0/23 (6939 204457) and 185.248.14.0/23 (6939 204457) 185.248.12.0/24 6939 204457 - Withdrawn - aggregated with 185.248.13.0/24 (6939 204457) 185.248.13.0/24 6939 204457 - Withdrawn - aggregated with 185.248.12.0/24 (6939 204457) 185.248.14.0/24 6939 204457 - Withdrawn - aggregated with 185.248.15.0/24 (6939 204457) 185.248.15.0/24 6939 204457 - Withdrawn - aggregated with 185.248.14.0/24 (6939 204457) 188.125.163.0/24 6939 204457 188.125.168.0/24 6939 204457 194.4.153.0/24 6939 204457 195.170.186.0/24 6939 204457 213.134.12.0/24 6939 204457
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS204457 6 More Specifics 7 Total Advertisements ATLANTIS-CENTRAL, TR
45.94.5.0/24 45.94.4.0/22
45.94.7.0/24 45.94.4.0/22
45.156.29.0/24 45.156.28.0/22
45.156.30.0/24 45.156.28.0/22
45.156.31.0/24 45.156.28.0/22
194.145.138.0/24 194.145.136.0/22
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 194.4.153.0/24 Withdrawn
whois: 402603
IANA has recorded AS204457 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS204457\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 '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 'AS204457'
% Abuse contact for 'AS204457' is 'abuse@atlantisnet.com.tr'
aut-num: AS204457
as-name: ATLANTIS-CENTRAL
org: ORG-ATBH1-RIPE
remarks: ************ Upstreams ************
import: from AS12735 accept ANY
import: from AS9121 accept ANY
import: from AS61135 accept ANY
import: from AS15924 accept ANY
import: from AS204036 accept ANY
import: from AS44901 accept ANY
import: from AS6204 accept ANY
import: from AS202303 accept ANY
import: from AS213658 accept ANY
import: from AS214382 accept ANY
import: from AS34984 accept ANY
import: from AS-57344 accept ANY
import: from AS51722 accept ANY
import: from AS211735 accept ANY
import: from AS216192 accept ANY
import: from as214941:as-upcell accept ANY
import: from AS49565:AS-POLE accept ANY
import: from AS206375:AS-SET accept any
import: from AS51722:AS-PIXOOF accept ANY
import: from AS-EURONETTELEKOM accept ANY
import: from AS-DGN accept ANY
import: from AS137409 accept ANY
import: from AS-FIXNET-TR accept ANY
export: to AS9121 announce AS204457:AS-ATLANTISNET
export: to AS49565:AS-POLE announce AS204457:AS-ATLANTISNET
export: to AS137409 announce AS204457:AS-ATLANTISNET
export: to as214941:as-upcell announce AS204457:AS-ATLANTISNET
export: to AS51722:AS-PIXOOF announce AS204457:AS-ATLANTISNET
export: to AS-FIXNET-TR announce AS204457:AS-ATLANTISNET
export: to AS51722 announce AS204457:AS-ATLANTISNET
export: to AS61135 announce AS204457:AS-ATLANTISNET
export: to AS211735 announce AS204457:AS-ATLANTISNET
export: to AS12735 announce AS204457:AS-ATLANTISNET
export: to AS34984 announce AS204457:AS-ATLANTISNET
export: to AS216192 announce AS204457:AS-ATLANTISNET
export: to AS15924 announce AS204457:AS-ATLANTISNET
export: to AS44901 announce AS204457:AS-ATLANTISNET
export: to AS-57344 announce AS204457:AS-ATLANTISNET
export: to AS213658 announce AS204457:AS-ATLANTISNET
export: to AS202303 announce AS204457:AS-ATLANTISNET
export: to AS-EURONETTELEKOM announce AS204457:AS-ATLANTISNET
export: to AS-DGN announce AS204457:AS-ATLANTISNET
export: to AS206375:AS-SET announce AS204457:AS-ATLANTISNET
remarks: ************ Downstream ************
import: from AS212549 accept any
export: to AS212549 announce AS204457:AS-ATLANTISNET
import: from AS212193 accept ANY
import: from AS205570 accept ANY
import: from AS209275 accept ANY
export: to AS212193 announce AS204457:AS-ATLANTISNET
export: to AS214382 announce AS204457:AS-ATLANTISNET
export: to AS205570 announce AS204457:AS-ATLANTISNET
export: to AS6777:AS-AMS-IX-RS-SETS announce AS204457:AS-ATLANTISNET
export: to AS6777:AS-AMS-IX-RS announce AS204457:AS-ATLANTISNET
import: from AS208821 accept ANY
import: from AS6823 accept ANY
import: from AS206375 accept ANY
import: from AS6777:AS-AMS-IX-RS-SETS accept ANY
import: from AS6777:AS-AMS-IX-RS accept ANY
export: to AS208821 announce AS204457:AS-ATLANTISNET
export: to AS204036 announce AS204457:AS-ATLANTISNET
export: to AS209275 announce AS204457:AS-ATLANTISNET
export: to AS6823 announce AS204457:AS-ATLANTISNET
export: to AS206375 announce AS204457:AS-ATLANTISNET
export: to AS6204 announce AS204457:AS-ATLANTISNET
admin-c: OZ620-RIPE
tech-c: OZ620-RIPE
tech-c: SD12478-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: tr-atlantis-1-mnt
created: 2018-03-07T16:32:53Z
last-modified: 2026-03-17T15:42:20Z
source: RIPE
organisation: ORG-ATBH1-RIPE
org-name: Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.
country: TR
reg-nr: 928128
org-type: LIR
address: Sultaniye mah. Dogan arasli bulv.no:140/8 Esenyurt
address: 34100
address: istanbul
address: TURKEY
phone: +902129673434
admin-c: OZ620-RIPE
tech-c: OZ620-RIPE
abuse-c: AR45341-RIPE
mnt-ref: tr-atlantis-1-mnt
mnt-ref: lir-tr-viva-1-MNT
mnt-ref: lir-tr-nova-1-MNT
mnt-ref: lir-tr-ozdemir1-1-MNT
mnt-ref: MNT-NETERRA
mnt-by: RIPE-NCC-HM-MNT
mnt-by: tr-atlantis-1-mnt
created: 2018-02-28T12:52:09Z
last-modified: 2026-05-13T07:38:52Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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% Access from your host has been temporarily denied.
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