206208 looking glass

AS209441 Tekfen Holding Anonim Sirketi 🇹🇷 TR

Announcing 4 prefixes, seen at the RIS collectors.

IPv4 prefixes
4
1,024 (4 × /24)
IPv6 prefixes
0
-
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS209441
Name
Tekfen Holding Anonim Sirketi
Organisation
Tekfen Holding Anonim Sirketi
Country
🇹🇷 TR
RIR
RIPENCC
Allocated
2019-02-11

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

4 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.ripe.net

as-block:       AS208885 - AS214345
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:        2026-07-13T14:17:33Z
last-modified:  2026-07-13T14:17:33Z
source:         RIPE

aut-num:        AS209441
as-name:        TEKFEN
org:            ORG-THAS1-RIPE
import:         from AS15924 accept ANY
export:         to AS15924 announce AS209441
import:         from AS9121 accept ANY
export:         to AS9121 announce AS209441
admin-c:        BK5061-RIPE
tech-c:         BK5061-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         mnt-tr-tekfen1-1
created:        2019-02-11T13:14:09Z
last-modified:  2019-02-11T13:14:09Z
source:         RIPE

organisation:   ORG-THAS1-RIPE
org-name:       Tekfen Holding Anonim Sirketi
country:        TR
reg-nr:         111233
org-type:       LIR
address:        Kultur Mh. Tekfen Sitesi  Budak Sk. A Blok No:7 Besiktas
address:        34340
address:        Istanbul
address:        TURKEY
phone:          +905380984699
phone:          +905380984698
admin-c:        YB1476-RIPE
admin-c:        BK5061-RIPE
tech-c:         YB1476-RIPE
tech-c:         BK5061-RIPE
abuse-c:        AR50723-RIPE
mnt-ref:        mnt-tr-tekfen1-1
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         mnt-tr-tekfen1-1
created:        2019-02-08T14:14:10Z
last-modified:  2026-05-13T07:39:57Z
source:         RIPE # Filtered

person:         Gokhan Yavuzer
address:        Kultur Mh. Tekfen Sitesi Budak Sk. A Blok No:7 Besiktas
address:        34340
address:        Istanbul
address:        TURKEY
phone:          +905380984698
nic-hdl:        BK5061-RIPE
mnt-by:         mnt-tr-tekfen1-1
created:        2019-02-08T14:14:09Z
last-modified:  2022-08-31T11:31:44Z
source:         RIPE