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



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
org-type:       LIR
address:        Sultaniye mah. Dogan arasli bulv.no:140/8 Esenyurt
address:        34100
address:        istanbul
address:        TURKEY
phone:          +902129673434
e-mail:         onurzorlu@atlantisnet.com.tr
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:  2026-03-18T14:45:23Z
source:         RIPE

person:         Onur Zorlu
address:        Elmas Sok No:11 Avcilar
address:        34100
address:        istanbul
address:        TURKEY
phone:          +902126904677
e-mail:         noc@atlantisnet.com.tr
nic-hdl:        OZ620-RIPE
mnt-by:         tr-atlantis-1-mnt
created:        2018-02-28T12:52:09Z
last-modified:  2025-12-18T11:18:12Z
source:         RIPE

person:         Yavuz Selim MALKOC
address:        Sultan Orhan Mah. Ilyasbey Cad, 1812 Sk.
address:        41400
address:        Kocaeli
address:        TURKEY
phone:          +902626446663
nic-hdl:        SD12478-RIPE
mnt-by:         mnt-tr-internetten-1
created:        2019-09-27T12:14:59Z
last-modified:  2019-09-30T13:41:16Z
source:         RIPE